aves_mio1/.flutter/packages/flutter/test/cupertino/text_field_test.dart

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// reduced-test-set:
//   This file is run as part of a reduced test set in CI on Mac and Windows
//   machines.
@Tags(<String>['reduced-test-set'])
library;

import 'dart:ui' as ui show BoxHeightStyle, BoxWidthStyle, Color, SemanticsInputType;

import 'package:flutter/cupertino.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/gestures.dart'
    show
        DragStartBehavior,
        PointerDeviceKind,
        kDoubleTapTimeout,
        kLongPressTimeout,
        kSecondaryMouseButton;
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';

import '../widgets/clipboard_utils.dart';
import '../widgets/editable_text_utils.dart';
import '../widgets/live_text_utils.dart';
import '../widgets/semantics_tester.dart';
import '../widgets/text_selection_toolbar_utils.dart';

class MockTextSelectionControls extends TextSelectionControls {
  @override
  Widget buildHandle(
    BuildContext context,
    TextSelectionHandleType type,
    double textLineHeight, [
    VoidCallback? onTap,
  ]) {
    throw UnimplementedError();
  }

  @override
  Widget buildToolbar(
    BuildContext context,
    Rect globalEditableRegion,
    double textLineHeight,
    Offset position,
    List<TextSelectionPoint> endpoints,
    TextSelectionDelegate delegate,
    ValueListenable<ClipboardStatus>? clipboardStatus,
    Offset? lastSecondaryTapDownPosition,
  ) {
    throw UnimplementedError();
  }

  @override
  Offset getHandleAnchor(TextSelectionHandleType type, double textLineHeight) {
    throw UnimplementedError();
  }

  @override
  Size getHandleSize(double textLineHeight) {
    throw UnimplementedError();
  }
}

class PathBoundsMatcher extends Matcher {
  const PathBoundsMatcher({
    this.rectMatcher,
    this.topMatcher,
    this.leftMatcher,
    this.rightMatcher,
    this.bottomMatcher,
  }) : super();

  final Matcher? rectMatcher;
  final Matcher? topMatcher;
  final Matcher? leftMatcher;
  final Matcher? rightMatcher;
  final Matcher? bottomMatcher;

  @override
  bool matches(covariant Path item, Map<dynamic, dynamic> matchState) {
    final Rect bounds = item.getBounds();

    final matchers = <Matcher?>[rectMatcher, topMatcher, leftMatcher, rightMatcher, bottomMatcher];
    final values = <dynamic>[bounds, bounds.top, bounds.left, bounds.right, bounds.bottom];
    final failedMatcher = <Matcher, dynamic>{};

    for (var idx = 0; idx < matchers.length; idx++) {
      if (!(matchers[idx]?.matches(values[idx], matchState) ?? true)) {
        failedMatcher[matchers[idx]!] = values[idx];
      }
    }

    matchState['failedMatcher'] = failedMatcher;
    return failedMatcher.isEmpty;
  }

  @override
  Description describe(Description description) =>
      description.add('The actual Rect does not match');

  @override
  Description describeMismatch(
    covariant Path item,
    Description mismatchDescription,
    Map<dynamic, dynamic> matchState,
    bool verbose,
  ) {
    final Description description = super.describeMismatch(
      item,
      mismatchDescription,
      matchState,
      verbose,
    );
    final map = matchState['failedMatcher'] as Map<Matcher, dynamic>;
    final Iterable<String> descriptions = map.entries.map<String>(
      (MapEntry<Matcher, dynamic> entry) => entry.key
          .describeMismatch(entry.value, StringDescription(), matchState, verbose)
          .toString(),
    );

    // description is guaranteed to be non-null.
    return description
      ..add('mismatch Rect: ${item.getBounds()}').addAll(': ', ', ', '. ', descriptions);
  }
}

class PathPointsMatcher extends Matcher {
  const PathPointsMatcher({this.includes = const <Offset>[], this.excludes = const <Offset>[]})
    : super();

  final Iterable<Offset> includes;
  final Iterable<Offset> excludes;

  @override
  bool matches(covariant Path item, Map<dynamic, dynamic> matchState) {
    final Offset? notIncluded = includes.cast<Offset?>().firstWhere(
      (Offset? offset) => !item.contains(offset!),
      orElse: () => null,
    );
    final Offset? notExcluded = excludes.cast<Offset?>().firstWhere(
      (Offset? offset) => item.contains(offset!),
      orElse: () => null,
    );

    matchState['notIncluded'] = notIncluded;
    matchState['notExcluded'] = notExcluded;
    return (notIncluded ?? notExcluded) == null;
  }

  @override
  Description describe(Description description) =>
      description.add('must include these points $includes and must not include $excludes');

  @override
  Description describeMismatch(
    covariant Path item,
    Description mismatchDescription,
    Map<dynamic, dynamic> matchState,
    bool verbose,
  ) {
    final notIncluded = matchState['notIncluded'] as Offset?;
    final notExcluded = matchState['notExcluded'] as Offset?;
    final Description desc = super.describeMismatch(item, mismatchDescription, matchState, verbose);

    if ((notExcluded ?? notIncluded) != null) {
      desc.add('Within the bounds of the path ${item.getBounds()}: ');
    }

    if (notIncluded != null) {
      desc.add('$notIncluded is not included. ');
    }
    if (notExcluded != null) {
      desc.add('$notExcluded is not excluded. ');
    }
    return desc;
  }
}

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();
  final mockClipboard = MockClipboard();
  TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler(
    SystemChannels.platform,
    mockClipboard.handleMethodCall,
  );

  // Returns the first RenderEditable.
  RenderEditable findRenderEditable(WidgetTester tester) {
    final RenderObject root = tester.renderObject(find.byType(EditableText));
    expect(root, isNotNull);

    RenderEditable? renderEditable;
    void recursiveFinder(RenderObject child) {
      if (child is RenderEditable) {
        renderEditable = child;
        return;
      }
      child.visitChildren(recursiveFinder);
    }

    root.visitChildren(recursiveFinder);
    expect(renderEditable, isNotNull);
    return renderEditable!;
  }

  List<TextSelectionPoint> globalize(Iterable<TextSelectionPoint> points, RenderBox box) {
    return points.map<TextSelectionPoint>((TextSelectionPoint point) {
      return TextSelectionPoint(box.localToGlobal(point.point), point.direction);
    }).toList();
  }

  Offset textOffsetToBottomLeftPosition(WidgetTester tester, int offset) {
    final RenderEditable renderEditable = findRenderEditable(tester);
    final List<TextSelectionPoint> endpoints = globalize(
      renderEditable.getEndpointsForSelection(TextSelection.collapsed(offset: offset)),
      renderEditable,
    );
    expect(endpoints.length, 1);
    return endpoints[0].point;
  }

  setUp(() async {
    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler(
      SystemChannels.platform,
      mockClipboard.handleMethodCall,
    );

    EditableText.debugDeterministicCursor = false;
    // Fill the clipboard so that the Paste option is available in the text
    // selection menu.
    await Clipboard.setData(const ClipboardData(text: 'Clipboard data'));
  });

  testWidgets('Live Text button shows and hides correctly when LiveTextStatus changes', (
    WidgetTester tester,
  ) async {
    final liveTextInputTester = LiveTextInputTester();
    addTearDown(liveTextInputTester.dispose);

    final controller = TextEditingController(text: '');
    addTearDown(controller.dispose);
    const Key key = ValueKey<String>('TextField');
    final focusNode = FocusNode();
    addTearDown(focusNode.dispose);
    final Widget app = MaterialApp(
      theme: ThemeData(platform: TargetPlatform.iOS),
      home: Scaffold(
        body: Center(
          child: CupertinoTextField(key: key, controller: controller, focusNode: focusNode),
        ),
      ),
    );

    liveTextInputTester.mockLiveTextInputEnabled = true;
    await tester.pumpWidget(app);
    focusNode.requestFocus();
    await tester.pumpAndSettle();

    final Finder textFinder = find.byType(EditableText);
    await tester.longPress(textFinder);
    await tester.pumpAndSettle();
    expect(findLiveTextButton(), kIsWeb ? findsNothing : findsOneWidget);

    liveTextInputTester.mockLiveTextInputEnabled = false;
    await tester.longPress(textFinder);
    await tester.pumpAndSettle();
    expect(findLiveTextButton(), findsNothing);
  });

  testWidgets(
    'Look Up shows up on iOS only',
    (WidgetTester tester) async {
      String? lastLookUp;
      TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler(
        SystemChannels.platform,
        (MethodCall methodCall) async {
          if (methodCall.method == 'LookUp.invoke') {
            expect(methodCall.arguments, isA<String>());
            lastLookUp = methodCall.arguments as String;
          }
          return null;
        },
      );

      final controller = TextEditingController(text: 'Test');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final isTargetPlatformiOS = defaultTargetPlatform == TargetPlatform.iOS;

      // Long press to put the cursor after the "s".
      const index = 3;
      await tester.longPressAt(textOffsetToPosition(tester, index));
      await tester.pumpAndSettle();

      // Double tap on the same location to select the word around the cursor.
      await tester.tapAt(textOffsetToPosition(tester, index));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.tapAt(textOffsetToPosition(tester, index));
      await tester.pumpAndSettle();

      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 4));
      expect(find.text('Look Up'), isTargetPlatformiOS ? findsOneWidget : findsNothing);

      if (isTargetPlatformiOS) {
        await tester.tap(find.text('Look Up'));
        expect(lastLookUp, 'Test');
      }
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.android,
    }),
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  testWidgets(
    'Search Web shows up on iOS only',
    (WidgetTester tester) async {
      String? lastSearch;
      TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler(
        SystemChannels.platform,
        (MethodCall methodCall) async {
          if (methodCall.method == 'SearchWeb.invoke') {
            expect(methodCall.arguments, isA<String>());
            lastSearch = methodCall.arguments as String;
          }
          return null;
        },
      );

      final controller = TextEditingController(text: 'Test');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final isTargetPlatformiOS = defaultTargetPlatform == TargetPlatform.iOS;

      // Long press to put the cursor after the "s".
      const index = 3;
      await tester.longPressAt(textOffsetToPosition(tester, index));
      await tester.pumpAndSettle();

      // Double tap on the same location to select the word around the cursor.
      await tester.tapAt(textOffsetToPosition(tester, index));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.tapAt(textOffsetToPosition(tester, index));
      await tester.pumpAndSettle();

      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 4));
      expect(find.text('Search Web'), isTargetPlatformiOS ? findsOneWidget : findsNothing);

      if (isTargetPlatformiOS) {
        await tester.tap(find.text('Search Web'));
        expect(lastSearch, 'Test');
      }
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.android,
    }),
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  testWidgets(
    'Share shows up on iOS and Android',
    (WidgetTester tester) async {
      String? lastShare;
      TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler(
        SystemChannels.platform,
        (MethodCall methodCall) async {
          if (methodCall.method == 'Share.invoke') {
            expect(methodCall.arguments, isA<String>());
            lastShare = methodCall.arguments as String;
          }
          return null;
        },
      );

      final controller = TextEditingController(text: 'Test');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      // Long press to put the cursor after the "s".
      const index = 3;
      await tester.longPressAt(textOffsetToPosition(tester, index));
      await tester.pumpAndSettle();

      // Double tap on the same location to select the word around the cursor.
      await tester.tapAt(textOffsetToPosition(tester, index));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.tapAt(textOffsetToPosition(tester, index));
      await tester.pumpAndSettle();

      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 4));
      expect(find.text('Share...'), findsOneWidget);

      await tester.tap(find.text('Share...'));
      expect(lastShare, 'Test');
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.android,
    }),
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  testWidgets(
    'can use the desktop cut/copy/paste buttons on Mac',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'blah1 blah2');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: ConstrainedBox(
              constraints: BoxConstraints.loose(const Size(400, 200)),
              child: CupertinoTextField(controller: controller),
            ),
          ),
        ),
      );

      // Initially, the menu is not shown and there is no selection.
      expect(find.byType(CupertinoButton), findsNothing);
      expect(controller.selection, const TextSelection(baseOffset: -1, extentOffset: -1));

      final Offset midBlah1 = textOffsetToPosition(tester, 2);

      // Right clicking shows the menu.
      final TestGesture gesture = await tester.startGesture(
        midBlah1,
        kind: PointerDeviceKind.mouse,
        buttons: kSecondaryMouseButton,
      );
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 5));
      expect(find.text('Copy'), findsOneWidget);
      expect(find.text('Cut'), findsOneWidget);
      expect(find.text('Paste'), findsOneWidget);

      // Copy the first word.
      await tester.tap(find.text('Copy'));
      await tester.pumpAndSettle();
      expect(controller.text, 'blah1 blah2');
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 5));
      expect(find.byType(CupertinoButton), findsNothing);

      // Paste it at the end.
      await gesture.down(textOffsetToPosition(tester, controller.text.length));
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle();
      expect(
        controller.selection,
        const TextSelection(baseOffset: 11, extentOffset: 11, affinity: TextAffinity.upstream),
      );
      expect(find.text('Cut'), findsNothing);
      expect(find.text('Copy'), findsNothing);
      expect(find.text('Paste'), findsOneWidget);
      await tester.tap(find.text('Paste'));
      await tester.pumpAndSettle();
      expect(controller.text, 'blah1 blah2blah1');
      expect(controller.selection, const TextSelection.collapsed(offset: 16));

      // Cut the first word.
      await gesture.down(midBlah1);
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle();
      expect(find.text('Cut'), findsOneWidget);
      expect(find.text('Copy'), findsOneWidget);
      expect(find.text('Paste'), findsOneWidget);
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 5));
      await tester.tap(find.text('Cut'));
      await tester.pumpAndSettle();
      expect(controller.text, ' blah2blah1');
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 0));
      expect(find.byType(CupertinoButton), findsNothing);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.macOS}),
    skip: kIsWeb, // [intended] the web handles this on its own.
  );

  testWidgets('can get text selection color initially on desktop', (WidgetTester tester) async {
    final focusNode = FocusNode();
    addTearDown(focusNode.dispose);
    final controller = TextEditingController(text: 'blah1 blah2');
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: RepaintBoundary(
            child: CupertinoTextField(
              key: const ValueKey<int>(1),
              controller: controller,
              focusNode: focusNode,
            ),
          ),
        ),
      ),
    );

    controller.selection = const TextSelection(baseOffset: 0, extentOffset: 11);
    focusNode.requestFocus();
    await tester.pump();

    expect(focusNode.hasFocus, true);
    await expectLater(
      find.byKey(const ValueKey<int>(1)),
      matchesGoldenFile('text_field_golden.text_selection_color.0.png'),
    );
  });

  testWidgets(
    'Activates the text field when receives semantics focus on desktops',
    (WidgetTester tester) async {
      final semantics = SemanticsTester(tester);
      final SemanticsOwner semanticsOwner = tester.binding.pipelineOwner.semanticsOwner!;
      final focusNode = FocusNode();
      addTearDown(focusNode.dispose);
      await tester.pumpWidget(CupertinoApp(home: CupertinoTextField(focusNode: focusNode)));
      expect(
        semantics,
        hasSemantics(
          TestSemantics.root(
            children: <TestSemantics>[
              TestSemantics(
                id: 1,
                textDirection: TextDirection.ltr,
                children: <TestSemantics>[
                  TestSemantics(
                    id: 2,
                    children: <TestSemantics>[
                      TestSemantics(
                        id: 3,
                        flags: <SemanticsFlag>[SemanticsFlag.scopesRoute],
                        children: <TestSemantics>[
                          TestSemantics(
                            id: 4,
                            inputType: ui.SemanticsInputType.text,
                            flags: <SemanticsFlag>[
                              SemanticsFlag.isTextField,
                              SemanticsFlag.isFocusable,
                              SemanticsFlag.hasEnabledState,
                              SemanticsFlag.isEnabled,
                            ],
                            actions: <SemanticsAction>[
                              SemanticsAction.tap,
                              SemanticsAction.focus,
                              SemanticsAction.didGainAccessibilityFocus,
                              SemanticsAction.didLoseAccessibilityFocus,
                            ],
                            textDirection: TextDirection.ltr,
                          ),
                        ],
                      ),
                    ],
                  ),
                ],
              ),
            ],
          ),
          ignoreRect: true,
          ignoreTransform: true,
        ),
      );

      expect(focusNode.hasFocus, isFalse);
      semanticsOwner.performAction(4, SemanticsAction.didGainAccessibilityFocus);
      await tester.pumpAndSettle();
      expect(focusNode.hasFocus, isTrue);
      semanticsOwner.performAction(4, SemanticsAction.didLoseAccessibilityFocus);
      await tester.pumpAndSettle();
      expect(focusNode.hasFocus, isFalse);
      semantics.dispose();
    },
    variant: TargetPlatformVariant.desktop(),
  );

  testWidgets('takes available space horizontally and takes intrinsic space vertically no-strut', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: ConstrainedBox(
            constraints: BoxConstraints.loose(const Size(200, 200)),
            child: const CupertinoTextField(strutStyle: StrutStyle.disabled),
          ),
        ),
      ),
    );

    expect(
      tester.getSize(find.byType(CupertinoTextField)),
      const Size(200, 31), // 31 is the height of the default font + padding etc.
    );
  });

  testWidgets('sets cursorOpacityAnimates on EditableText correctly', (WidgetTester tester) async {
    // True

    await tester.pumpWidget(const CupertinoApp(home: CupertinoTextField(autofocus: true)));
    await tester.pump();
    EditableText editableText = tester.widget(find.byType(EditableText));
    expect(editableText.cursorOpacityAnimates, true);

    // False

    await tester.pumpWidget(
      const CupertinoApp(home: CupertinoTextField(autofocus: true, cursorOpacityAnimates: false)),
    );
    await tester.pump();
    editableText = tester.widget(find.byType(EditableText));
    expect(editableText.cursorOpacityAnimates, false);
  });

  testWidgets('takes available space horizontally and takes intrinsic space vertically', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: ConstrainedBox(
            constraints: BoxConstraints.loose(const Size(200, 200)),
            child: const CupertinoTextField(),
          ),
        ),
      ),
    );

    expect(
      tester.getSize(find.byType(CupertinoTextField)),
      const Size(200, 31), // 31 is the height of the default font (17) + decoration (12).
    );
  });

  testWidgets(
    'selection handles color respects CupertinoTheme',
    (WidgetTester tester) async {
      // Regression test for https://github.com/flutter/flutter/issues/74890.
      const expectedSelectionHandleColor = Color.fromARGB(255, 10, 200, 255);

      final controller = TextEditingController(text: 'Some text.');
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          theme: const CupertinoThemeData(selectionHandleColor: Colors.red),
          home: Center(
            child: CupertinoTheme(
              data: const CupertinoThemeData(selectionHandleColor: expectedSelectionHandleColor),
              child: CupertinoTextField(controller: controller),
            ),
          ),
        ),
      );

      await tester.tapAt(textOffsetToPosition(tester, 0));
      await tester.pump();
      await tester.tapAt(textOffsetToPosition(tester, 0));
      await tester.pumpAndSettle();
      final Iterable<RenderBox> boxes = tester.renderObjectList<RenderBox>(
        find.descendant(
          of: find.byWidgetPredicate((Widget w) => '${w.runtimeType}' == '_SelectionHandleOverlay'),
          matching: find.byType(CustomPaint),
        ),
      );
      expect(boxes.length, 2);

      for (final box in boxes) {
        expect(box, paints..path(color: expectedSelectionHandleColor));
      }
    },
    variant: TargetPlatformVariant.only(TargetPlatform.iOS),
  );

  testWidgets('uses DefaultSelectionStyle for selection and cursor colors if provided', (
    WidgetTester tester,
  ) async {
    const Color selectionColor = Colors.black;
    const Color cursorColor = Colors.white;

    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: DefaultSelectionStyle(
            selectionColor: selectionColor,
            cursorColor: cursorColor,
            child: CupertinoTextField(autofocus: true),
          ),
        ),
      ),
    );
    await tester.pump();
    final EditableTextState state = tester.state<EditableTextState>(find.byType(EditableText));
    expect(state.widget.selectionColor, selectionColor);
    expect(state.widget.cursorColor, cursorColor);
  });

  testWidgets('Text field drops selection color when losing focus', (WidgetTester tester) async {
    // Regression test for https://github.com/flutter/flutter/issues/103341.
    final Key key1 = UniqueKey();
    final Key key2 = UniqueKey();
    final controller1 = TextEditingController();
    addTearDown(controller1.dispose);
    const Color selectionColor = Colors.orange;
    const Color cursorColor = Colors.red;

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: DefaultSelectionStyle(
            selectionColor: selectionColor,
            cursorColor: cursorColor,
            child: Column(
              children: <Widget>[
                CupertinoTextField(key: key1, controller: controller1),
                CupertinoTextField(key: key2),
              ],
            ),
          ),
        ),
      ),
    );

    const selection = TextSelection(baseOffset: 0, extentOffset: 4);
    final EditableTextState state1 = tester.state<EditableTextState>(
      find.byType(EditableText).first,
    );
    final EditableTextState state2 = tester.state<EditableTextState>(
      find.byType(EditableText).last,
    );

    await tester.tap(find.byKey(key1));
    await tester.enterText(find.byKey(key1), 'abcd');
    await tester.pump();

    await tester.tap(find.byKey(key2));
    await tester.enterText(find.byKey(key2), 'dcba');
    await tester.pumpAndSettle();

    // Focus and selection is active on first TextField, so the second TextFields
    // selectionColor should be dropped.
    await tester.tap(find.byKey(key1));
    controller1.selection = const TextSelection(baseOffset: 0, extentOffset: 4);
    await tester.pump();
    expect(controller1.selection, selection);
    expect(state1.widget.selectionColor, selectionColor);
    expect(state2.widget.selectionColor, null);

    // Focus and selection is active on second TextField, so the first TextField
    // selectionColor should be dropped.
    await tester.tap(find.byKey(key2));
    await tester.pump();
    expect(state1.widget.selectionColor, null);
    expect(state2.widget.selectionColor, selectionColor);
  });

  testWidgets('multi-lined text fields are intrinsically taller no-strut', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: ConstrainedBox(
            constraints: BoxConstraints.loose(const Size(200, 200)),
            child: const CupertinoTextField(maxLines: 3, strutStyle: StrutStyle.disabled),
          ),
        ),
      ),
    );

    expect(
      tester.getSize(find.byType(CupertinoTextField)),
      const Size(
        200,
        65,
      ), // 65 is the height of the default font (17) * maxlines (3) + decoration height (12).
    );
  });

  testWidgets('multi-lined text fields are intrinsically taller', (WidgetTester tester) async {
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: ConstrainedBox(
            constraints: BoxConstraints.loose(const Size(200, 200)),
            child: const CupertinoTextField(maxLines: 3),
          ),
        ),
      ),
    );

    expect(tester.getSize(find.byType(CupertinoTextField)), const Size(200, 65));
  });

  testWidgets(
    'strut height override',
    (WidgetTester tester) async {
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: ConstrainedBox(
              constraints: BoxConstraints.loose(const Size(200, 200)),
              child: const CupertinoTextField(
                maxLines: 3,
                strutStyle: StrutStyle(fontSize: 8, forceStrutHeight: true),
              ),
            ),
          ),
        ),
      );

      expect(tester.getSize(find.byType(CupertinoTextField)), const Size(200, 38));
    },
    // TODO(mdebbar): Strut styles support.
    skip: isBrowser, // https://github.com/flutter/flutter/issues/32243
  );

  testWidgets(
    'strut forces field taller',
    (WidgetTester tester) async {
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: ConstrainedBox(
              constraints: BoxConstraints.loose(const Size(200, 200)),
              child: const CupertinoTextField(
                maxLines: 3,
                style: TextStyle(fontSize: 10),
                strutStyle: StrutStyle(fontSize: 18, forceStrutHeight: true),
              ),
            ),
          ),
        ),
      );

      expect(tester.getSize(find.byType(CupertinoTextField)), const Size(200, 68));
    },
    // TODO(mdebbar): Strut styles support.
    skip: isBrowser, // https://github.com/flutter/flutter/issues/32243
  );

  testWidgets('default text field has a border', (WidgetTester tester) async {
    await tester.pumpWidget(const CupertinoApp(home: Center(child: CupertinoTextField())));

    var decoration =
        tester
                .widget<DecoratedBox>(
                  find.descendant(
                    of: find.byType(CupertinoTextField),
                    matching: find.byType(DecoratedBox),
                  ),
                )
                .decoration
            as BoxDecoration;

    expect(decoration.borderRadius, const BorderRadius.all(Radius.circular(5)));
    expect(decoration.border!.bottom.color.value, 0x33000000);

    // Dark mode.
    await tester.pumpWidget(
      const CupertinoApp(
        theme: CupertinoThemeData(brightness: Brightness.dark),
        home: Center(child: CupertinoTextField()),
      ),
    );

    decoration =
        tester
                .widget<DecoratedBox>(
                  find.descendant(
                    of: find.byType(CupertinoTextField),
                    matching: find.byType(DecoratedBox),
                  ),
                )
                .decoration
            as BoxDecoration;

    expect(decoration.borderRadius, const BorderRadius.all(Radius.circular(5)));
    expect(decoration.border!.bottom.color.value, 0x33FFFFFF);
  });

  testWidgets(
    'The second CupertinoTextField is clicked, triggers the onTapOutside callback of the previous CupertinoTextField',
    (WidgetTester tester) async {
      final GlobalKey keyA = GlobalKey();
      final GlobalKey keyB = GlobalKey();
      final GlobalKey keyC = GlobalKey();
      var outsideClickA = false;
      var outsideClickB = false;
      var outsideClickC = false;
      await tester.pumpWidget(
        MaterialApp(
          home: Align(
            alignment: Alignment.topLeft,
            child: Column(
              children: <Widget>[
                const Text('Outside'),
                Material(
                  child: CupertinoTextField(
                    key: keyA,
                    groupId: 'Group A',
                    onTapOutside: (PointerDownEvent event) {
                      outsideClickA = true;
                    },
                  ),
                ),
                Material(
                  child: CupertinoTextField(
                    key: keyB,
                    groupId: 'Group B',
                    onTapOutside: (PointerDownEvent event) {
                      outsideClickB = true;
                    },
                  ),
                ),
                Material(
                  child: CupertinoTextField(
                    key: keyC,
                    groupId: 'Group C',
                    onTapOutside: (PointerDownEvent event) {
                      outsideClickC = true;
                    },
                  ),
                ),
              ],
            ),
          ),
        ),
      );

      await tester.pump();

      Future<void> click(Finder finder) async {
        await tester.tap(finder);
        await tester.enterText(finder, 'Hello');
        await tester.pump();
      }

      expect(outsideClickA, false);
      expect(outsideClickB, false);
      expect(outsideClickC, false);

      await click(find.byKey(keyA));
      await tester.showKeyboard(find.byKey(keyA));
      await tester.idle();
      expect(outsideClickA, false);
      expect(outsideClickB, false);
      expect(outsideClickC, false);

      await click(find.byKey(keyB));
      expect(outsideClickA, true);
      expect(outsideClickB, false);
      expect(outsideClickC, false);

      await click(find.byKey(keyC));
      expect(outsideClickA, true);
      expect(outsideClickB, true);
      expect(outsideClickC, false);

      await tester.tap(find.text('Outside'));
      expect(outsideClickA, true);
      expect(outsideClickB, true);
      expect(outsideClickC, true);
    },
  );

  testWidgets('decoration can be overridden', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(home: Center(child: CupertinoTextField(decoration: null))),
    );

    expect(
      find.descendant(of: find.byType(CupertinoTextField), matching: find.byType(DecoratedBox)),
      findsNothing,
    );
  });

  testWidgets('text entries are padded by default', (WidgetTester tester) async {
    final controller = TextEditingController(text: 'initial');
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    expect(
      tester.getTopLeft(find.text('initial')) - tester.getTopLeft(find.byType(CupertinoTextField)),
      const Offset(7.0, 7.0),
    );
  });

  testWidgets('iOS cursor has offset', (WidgetTester tester) async {
    await tester.pumpWidget(const CupertinoApp(home: CupertinoTextField()));

    final EditableText editableText = tester.firstWidget(find.byType(EditableText));
    expect(editableText.cursorOffset, const Offset(-2.0 / 3.0, 0));
  });

  testWidgets(
    'Cursor radius is 2.0',
    (WidgetTester tester) async {
      await tester.pumpWidget(const CupertinoApp(home: CupertinoTextField()));

      final EditableTextState editableTextState = tester.firstState(find.byType(EditableText));
      final RenderEditable renderEditable = editableTextState.renderEditable;

      expect(renderEditable.cursorRadius, const Radius.circular(2.0));
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets('Cupertino cursor android golden', (WidgetTester tester) async {
    final Widget widget = CupertinoApp(
      home: Center(
        child: RepaintBoundary(
          key: const ValueKey<int>(1),
          child: ConstrainedBox(
            constraints: BoxConstraints.loose(const Size(400, 400)),
            child: const CupertinoTextField(),
          ),
        ),
      ),
    );
    await tester.pumpWidget(widget);

    const testValue = 'A short phrase';
    await tester.enterText(find.byType(CupertinoTextField), testValue);
    await tester.pump();

    await tester.tapAt(textOffsetToPosition(tester, testValue.length));
    await tester.pumpAndSettle();

    await expectLater(
      find.byKey(const ValueKey<int>(1)),
      matchesGoldenFile('text_field_cursor_test.cupertino.0.png'),
    );
  });

  testWidgets(
    'Cupertino cursor golden',
    (WidgetTester tester) async {
      final Widget widget = CupertinoApp(
        home: Center(
          child: RepaintBoundary(
            key: const ValueKey<int>(1),
            child: ConstrainedBox(
              constraints: BoxConstraints.loose(const Size(400, 400)),
              child: const CupertinoTextField(),
            ),
          ),
        ),
      );
      await tester.pumpWidget(widget);

      const testValue = 'A short phrase';
      await tester.enterText(find.byType(CupertinoTextField), testValue);
      await tester.pump();

      await tester.tapAt(textOffsetToPosition(tester, testValue.length));
      await tester.pumpAndSettle();

      await expectLater(
        find.byKey(const ValueKey<int>(1)),
        matchesGoldenFile(
          'text_field_cursor_test.cupertino_${debugDefaultTargetPlatformOverride!.name.toLowerCase()}.1.png',
        ),
      );
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets('can control text content via controller', (WidgetTester tester) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    controller.text = 'controller text';
    await tester.pump();

    expect(find.text('controller text'), findsOneWidget);

    controller.text = '';
    await tester.pump();

    expect(find.text('controller text'), findsNothing);
  });

  testWidgets('placeholder respects textAlign', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(placeholder: 'placeholder', textAlign: TextAlign.right),
        ),
      ),
    );

    final Text placeholder = tester.widget(find.text('placeholder'));
    expect(placeholder.textAlign, TextAlign.right);

    await tester.enterText(find.byType(CupertinoTextField), 'input');
    await tester.pump();

    final EditableText inputText = tester.widget(find.text('input'));
    expect(placeholder.textAlign, inputText.textAlign);
  });

  testWidgets('placeholder dark mode', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(
        theme: CupertinoThemeData(brightness: Brightness.dark),
        home: Center(
          child: CupertinoTextField(placeholder: 'placeholder', textAlign: TextAlign.right),
        ),
      ),
    );

    final Text placeholder = tester.widget(find.text('placeholder'));
    expect(placeholder.style!.color!.value, CupertinoColors.placeholderText.darkColor.value);
  });

  testWidgets('placeholders are lightly colored and disappears once typing starts', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(child: CupertinoTextField(placeholder: 'placeholder')),
      ),
    );

    final Text placeholder = tester.widget(find.text('placeholder'));
    expect(placeholder.style!.color!.value, CupertinoColors.placeholderText.color.value);

    await tester.enterText(find.byType(CupertinoTextField), 'input');
    await tester.pump();
    final Element element = tester.element(find.text('placeholder'));
    expect(Visibility.of(element), false);
  });

  testWidgets("placeholderStyle modifies placeholder's style and doesn't affect text's style", (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            placeholder: 'placeholder',
            style: TextStyle(color: Color(0x00FFFFFF), fontWeight: FontWeight.w300),
            placeholderStyle: TextStyle(color: Color(0xAAFFFFFF), fontWeight: FontWeight.w600),
          ),
        ),
      ),
    );

    final Text placeholder = tester.widget(find.text('placeholder'));
    expect(placeholder.style!.color, const Color(0xAAFFFFFF));
    expect(placeholder.style!.fontWeight, FontWeight.w600);

    await tester.enterText(find.byType(CupertinoTextField), 'input');
    await tester.pump();

    final EditableText inputText = tester.widget(find.text('input'));
    expect(inputText.style.color, const Color(0x00FFFFFF));
    expect(inputText.style.fontWeight, FontWeight.w300);
  });

  testWidgets('prefix widget is in front of the text', (WidgetTester tester) async {
    final focusNode = FocusNode();
    addTearDown(focusNode.dispose);
    final controller = TextEditingController(text: 'input');
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            focusNode: focusNode,
            prefix: const Icon(CupertinoIcons.add),
            controller: controller,
          ),
        ),
      ),
    );

    expect(
      tester.getTopRight(find.byIcon(CupertinoIcons.add)).dx +
          7.0, // 7px standard padding around input.
      tester.getTopLeft(find.byType(EditableText)).dx,
    );

    expect(
      tester.getTopLeft(find.byType(EditableText)).dx,
      tester.getTopLeft(find.byType(CupertinoTextField)).dx +
          tester.getSize(find.byIcon(CupertinoIcons.add)).width +
          7.0,
    );
  });

  testWidgets('prefix widget respects visibility mode', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            prefix: Icon(CupertinoIcons.add),
            prefixMode: OverlayVisibilityMode.editing,
          ),
        ),
      ),
    );

    expect(find.byIcon(CupertinoIcons.add), findsNothing);
    // The position should just be the edge of the whole text field plus padding.
    expect(
      tester.getTopLeft(find.byType(EditableText)).dx,
      tester.getTopLeft(find.byType(CupertinoTextField)).dx + 7.0,
    );

    await tester.enterText(find.byType(CupertinoTextField), 'text input');
    await tester.pump();

    expect(find.text('text input'), findsOneWidget);
    expect(find.byIcon(CupertinoIcons.add), findsOneWidget);

    // Text is now moved to the right.
    expect(
      tester.getTopLeft(find.byType(EditableText)).dx,
      tester.getTopLeft(find.byType(CupertinoTextField)).dx +
          tester.getSize(find.byIcon(CupertinoIcons.add)).width +
          7.0,
    );
  });

  testWidgets('suffix widget is after the text', (WidgetTester tester) async {
    final focusNode = FocusNode();
    addTearDown(focusNode.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(focusNode: focusNode, suffix: const Icon(CupertinoIcons.add)),
        ),
      ),
    );

    expect(
      tester.getTopRight(find.byType(EditableText)).dx + 7.0,
      tester.getTopLeft(find.byIcon(CupertinoIcons.add)).dx, // 7px standard padding around input.
    );

    expect(
      tester.getTopRight(find.byType(EditableText)).dx,
      tester.getTopRight(find.byType(CupertinoTextField)).dx -
          tester.getSize(find.byIcon(CupertinoIcons.add)).width -
          7.0,
    );
  });

  testWidgets('suffix widget respects visibility mode', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            suffix: Icon(CupertinoIcons.add),
            suffixMode: OverlayVisibilityMode.notEditing,
          ),
        ),
      ),
    );

    expect(find.byIcon(CupertinoIcons.add), findsOneWidget);

    await tester.enterText(find.byType(CupertinoTextField), 'text input');
    await tester.pump();

    expect(find.text('text input'), findsOneWidget);
    expect(find.byIcon(CupertinoIcons.add), findsNothing);
  });

  testWidgets('can customize padding', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(child: CupertinoTextField(padding: EdgeInsets.zero)),
      ),
    );

    expect(
      tester.getSize(find.byType(EditableText)),
      tester.getSize(find.byType(CupertinoTextField)),
    );
  });

  testWidgets('padding is in between prefix and suffix no-strut', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            padding: EdgeInsets.all(20.0),
            prefix: SizedBox(height: 100.0, width: 100.0),
            suffix: SizedBox(height: 50.0, width: 50.0),
            strutStyle: StrutStyle.disabled,
          ),
        ),
      ),
    );

    expect(
      tester.getTopLeft(find.byType(EditableText)).dx,
      // Size of prefix + padding.
      100.0 + 20.0,
    );

    expect(tester.getTopLeft(find.byType(EditableText)).dy, 291.5);

    expect(tester.getTopRight(find.byType(EditableText)).dx, 800.0 - 50.0 - 20.0);

    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            padding: EdgeInsets.all(30.0),
            prefix: SizedBox(height: 100.0, width: 100.0),
            suffix: SizedBox(height: 50.0, width: 50.0),
            strutStyle: StrutStyle.disabled,
          ),
        ),
      ),
    );

    expect(tester.getTopLeft(find.byType(EditableText)).dx, 100.0 + 30.0);

    // Since the highest component, the prefix box, is higher than
    // the text + paddings, the text's vertical position isn't affected.
    expect(tester.getTopLeft(find.byType(EditableText)).dy, 291.5);

    expect(tester.getTopRight(find.byType(EditableText)).dx, 800.0 - 50.0 - 30.0);
  });

  testWidgets('padding is in between prefix and suffix', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            padding: EdgeInsets.all(20.0),
            prefix: SizedBox(height: 100.0, width: 100.0),
            suffix: SizedBox(height: 50.0, width: 50.0),
          ),
        ),
      ),
    );

    expect(
      tester.getTopLeft(find.byType(EditableText)).dx,
      // Size of prefix + padding.
      100.0 + 20.0,
    );

    expect(tester.getTopLeft(find.byType(EditableText)).dy, 291.5);

    expect(tester.getTopRight(find.byType(EditableText)).dx, 800.0 - 50.0 - 20.0);

    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            padding: EdgeInsets.all(30.0),
            prefix: SizedBox(height: 100.0, width: 100.0),
            suffix: SizedBox(height: 50.0, width: 50.0),
          ),
        ),
      ),
    );

    expect(tester.getTopLeft(find.byType(EditableText)).dx, 100.0 + 30.0);

    // Since the highest component, the prefix box, is higher than
    // the text + paddings, the text's vertical position isn't affected.
    expect(tester.getTopLeft(find.byType(EditableText)).dy, 291.5);

    expect(tester.getTopRight(find.byType(EditableText)).dx, 800.0 - 50.0 - 30.0);
  });

  testWidgets('clear button shows with right visibility mode', (WidgetTester tester) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            controller: controller,
            placeholder: 'placeholder does not affect clear button',
            clearButtonMode: OverlayVisibilityMode.always,
          ),
        ),
      ),
    );

    expect(find.byIcon(CupertinoIcons.clear_thick_circled), findsOneWidget);

    expect(
      tester.getTopRight(find.byType(EditableText)).dx,
      800.0 - 30.0 /* size of button */ - 7.0 /* padding */,
    );

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            controller: controller,
            placeholder: 'placeholder does not affect clear button',
            clearButtonMode: OverlayVisibilityMode.editing,
          ),
        ),
      ),
    );

    expect(find.byIcon(CupertinoIcons.clear_thick_circled), findsNothing);
    expect(tester.getTopRight(find.byType(EditableText)).dx, 800.0 - 7.0 /* padding */);

    await tester.enterText(find.byType(CupertinoTextField), 'text input');
    await tester.pump();

    expect(find.byIcon(CupertinoIcons.clear_thick_circled), findsOneWidget);
    expect(find.text('text input'), findsOneWidget);
    expect(tester.getTopRight(find.byType(EditableText)).dx, 800.0 - 30.0 - 7.0);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            controller: controller,
            placeholder: 'placeholder does not affect clear button',
            clearButtonMode: OverlayVisibilityMode.notEditing,
          ),
        ),
      ),
    );
    expect(find.byIcon(CupertinoIcons.clear_thick_circled), findsNothing);

    controller.text = '';
    await tester.pump();

    expect(find.byIcon(CupertinoIcons.clear_thick_circled), findsOneWidget);
  });

  testWidgets('clear button removes text', (WidgetTester tester) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            controller: controller,
            placeholder: 'placeholder',
            clearButtonMode: OverlayVisibilityMode.editing,
          ),
        ),
      ),
    );

    controller.text = 'text entry';
    await tester.pump();

    await tester.tap(find.byIcon(CupertinoIcons.clear_thick_circled));
    await tester.pump();

    expect(controller.text, '');
    expect(find.text('placeholder'), findsOneWidget);
    expect(find.text('text entry'), findsNothing);
    expect(find.byIcon(CupertinoIcons.clear_thick_circled), findsNothing);
  });

  testWidgets('tapping clear button also calls onChanged when text not empty', (
    WidgetTester tester,
  ) async {
    var value = 'text entry';
    final controller = TextEditingController();
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            controller: controller,
            placeholder: 'placeholder',
            onChanged: (String newValue) => value = newValue,
            clearButtonMode: OverlayVisibilityMode.always,
          ),
        ),
      ),
    );

    controller.text = value;
    await tester.pump();

    await tester.tap(find.byIcon(CupertinoIcons.clear_thick_circled));
    await tester.pump();

    expect(controller.text, isEmpty);
    expect(find.text('text entry'), findsNothing);
    expect(value, isEmpty);
  });

  testWidgets('clear button yields precedence to suffix', (WidgetTester tester) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            controller: controller,
            clearButtonMode: OverlayVisibilityMode.always,
            suffix: const Icon(CupertinoIcons.add_circled_solid),
            suffixMode: OverlayVisibilityMode.editing,
          ),
        ),
      ),
    );

    expect(find.byIcon(CupertinoIcons.clear_thick_circled), findsOneWidget);
    expect(find.byIcon(CupertinoIcons.add_circled_solid), findsNothing);

    expect(
      tester.getTopRight(find.byType(EditableText)).dx,
      800.0 - 30.0 /* size of button */ - 7.0 /* padding */,
    );

    controller.text = 'non empty text';
    await tester.pump();

    expect(find.byIcon(CupertinoIcons.clear_thick_circled), findsNothing);
    expect(find.byIcon(CupertinoIcons.add_circled_solid), findsOneWidget);

    // Still just takes the space of one widget.
    expect(
      tester.getTopRight(find.byType(EditableText)).dx,
      800.0 - 24.0 /* size of button */ - 7.0 /* padding */,
    );
  });

  testWidgets('font style controls intrinsic height no-strut', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(child: CupertinoTextField(strutStyle: StrutStyle.disabled)),
      ),
    );

    expect(tester.getSize(find.byType(CupertinoTextField)).height, 31.0);

    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            style: TextStyle(
              // A larger font.
              fontSize: 50.0,
            ),
            strutStyle: StrutStyle.disabled,
          ),
        ),
      ),
    );

    expect(tester.getSize(find.byType(CupertinoTextField)).height, 64.0);
  });

  testWidgets('font style controls intrinsic height', (WidgetTester tester) async {
    await tester.pumpWidget(const CupertinoApp(home: Center(child: CupertinoTextField())));

    expect(tester.getSize(find.byType(CupertinoTextField)).height, 31.0);

    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            style: TextStyle(
              // A larger font.
              fontSize: 50.0,
            ),
          ),
        ),
      ),
    );

    expect(tester.getSize(find.byType(CupertinoTextField)).height, 64.0);
  });

  testWidgets('RTL puts attachments to the right places', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Directionality(
          textDirection: TextDirection.rtl,
          child: Center(
            child: CupertinoTextField(
              padding: EdgeInsets.all(20.0),
              prefix: Icon(CupertinoIcons.book),
              clearButtonMode: OverlayVisibilityMode.always,
            ),
          ),
        ),
      ),
    );

    expect(tester.getTopLeft(find.byIcon(CupertinoIcons.book)).dx, 800.0 - 24.0);

    expect(tester.getTopRight(find.byIcon(CupertinoIcons.clear_thick_circled)).dx, 24.0);
  });

  testWidgets('text fields with no max lines can grow no-strut', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(child: CupertinoTextField(maxLines: null, strutStyle: StrutStyle.disabled)),
      ),
    );

    expect(
      tester.getSize(find.byType(CupertinoTextField)).height,
      31.0, // Initially one line high.
    );

    await tester.enterText(find.byType(CupertinoTextField), '\n');
    await tester.pump();

    expect(
      tester.getSize(find.byType(CupertinoTextField)).height,
      48.0, // Initially one line high.
    );
  });

  testWidgets('text fields with no max lines can grow', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(home: Center(child: CupertinoTextField(maxLines: null))),
    );

    expect(
      tester.getSize(find.byType(CupertinoTextField)).height,
      31.0, // Initially one line high.
    );

    await tester.enterText(find.byType(CupertinoTextField), '\n');
    await tester.pump();

    expect(
      tester.getSize(find.byType(CupertinoTextField)).height,
      48.0, // Initially one line high.
    );
  });

  testWidgets('cannot enter new lines onto single line TextField', (WidgetTester tester) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    await tester.enterText(find.byType(CupertinoTextField), 'abc\ndef');

    expect(controller.text, 'abcdef');
  });

  testWidgets(
    'toolbar colors change with theme brightness, but nothing else',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: "j'aime la poutine");
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: Column(children: <Widget>[CupertinoTextField(controller: controller)]),
        ),
      );

      await tester.longPressAt(tester.getTopRight(find.text("j'aime la poutine")));
      await tester.pumpAndSettle();
      await tester.pump(const Duration(milliseconds: 200));

      Text text = tester.widget<Text>(find.text('Paste'));
      expect(text.style!.color!.value, CupertinoColors.black.value);
      expect(text.style!.fontSize, 15);
      expect(text.style!.letterSpacing, -0.15);
      expect(text.style!.fontWeight, FontWeight.w400);

      // Change the theme.
      await tester.pumpWidget(
        CupertinoApp(
          theme: const CupertinoThemeData(
            brightness: Brightness.dark,
            textTheme: CupertinoTextThemeData(
              textStyle: TextStyle(fontSize: 100, fontWeight: FontWeight.w800),
            ),
          ),
          home: Column(children: <Widget>[CupertinoTextField(controller: controller)]),
        ),
      );

      await tester.longPressAt(tester.getTopRight(find.text("j'aime la poutine")));
      await tester.pumpAndSettle();
      await tester.pump(const Duration(milliseconds: 200));

      text = tester.widget<Text>(find.text('Paste'));
      // The toolbar buttons' text are still the same style.
      expect(text.style!.color!.value, CupertinoColors.white.value);
      expect(text.style!.fontSize, 15);
      expect(text.style!.letterSpacing, -0.15);
      expect(text.style!.fontWeight, FontWeight.w400);
    },
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  testWidgets(
    'text field toolbar options correctly changes options on Apple Platforms',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Column(
            children: <Widget>[
              CupertinoTextField(
                autofocus: true,
                controller: controller,
                toolbarOptions: const ToolbarOptions(copy: true),
              ),
            ],
          ),
        ),
      );

      // This extra pump is so autofocus can propagate to renderEditable.
      await tester.pump();

      // Long press to put the cursor after the "w".
      const index = 3;
      await tester.longPressAt(textOffsetToPosition(tester, index));
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection.collapsed(offset: index));

      // Double tap on the same location to select the word around the cursor.
      await tester.tapAt(textOffsetToPosition(tester, index));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.tapAt(textOffsetToPosition(tester, index));
      await tester.pump();
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 7));

      // Selected text shows 'Copy'.
      expect(find.text('Paste'), findsNothing);
      expect(find.text('Copy'), findsOneWidget);
      expect(find.text('Cut'), findsNothing);
      expect(find.text('Select All'), findsNothing);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  testWidgets(
    'text field toolbar options correctly changes options on non-Apple platforms',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Column(
            children: <Widget>[
              CupertinoTextField(
                controller: controller,
                toolbarOptions: const ToolbarOptions(copy: true),
              ),
            ],
          ),
        ),
      );

      // Long press to select 'Atwater'
      const index = 3;
      await tester.longPressAt(textOffsetToPosition(tester, index));
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 7));

      // Tap elsewhere to hide the context menu so that subsequent taps don't
      // collide with it.
      await tester.tapAt(textOffsetToPosition(tester, controller.text.length));
      await tester.pump();
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 35, affinity: TextAffinity.upstream),
      );

      // Double tap on the same location to select the word around the cursor.
      await tester.tapAt(textOffsetToPosition(tester, 10));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.tapAt(textOffsetToPosition(tester, 10));
      await tester.pump();
      expect(controller.selection, const TextSelection(baseOffset: 8, extentOffset: 12));

      // Selected text shows 'Copy'.
      expect(find.text('Paste'), findsNothing);
      expect(find.text('Copy'), findsOneWidget);
      expect(find.text('Cut'), findsNothing);
      expect(find.text('Select All'), findsNothing);
    },
    variant: TargetPlatformVariant.all(
      excluding: <TargetPlatform>{TargetPlatform.iOS, TargetPlatform.macOS},
    ),
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  testWidgets(
    'Read only text field',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'readonly');
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: Column(
            children: <Widget>[CupertinoTextField(controller: controller, readOnly: true)],
          ),
        ),
      );
      // Read only text field cannot open keyboard.
      await tester.showKeyboard(find.byType(CupertinoTextField));
      expect(tester.testTextInput.hasAnyClients, false);

      await tester.longPressAt(tester.getTopRight(find.text('readonly')));

      await tester.pumpAndSettle();

      expect(find.text('Paste'), findsNothing);
      expect(find.text('Cut'), findsNothing);
      expect(find.text('Select All'), findsOneWidget);

      await tester.tap(find.text('Select All'));
      await tester.pump();

      expect(find.text('Copy'), findsOneWidget);
      expect(find.text('Paste'), findsNothing);
      expect(find.text('Cut'), findsNothing);
    },
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  testWidgets(
    'copy paste',
    (WidgetTester tester) async {
      await tester.pumpWidget(
        const CupertinoApp(
          home: Column(
            children: <Widget>[
              CupertinoTextField(placeholder: 'field 1'),
              CupertinoTextField(placeholder: 'field 2'),
            ],
          ),
        ),
      );

      await tester.enterText(
        find.widgetWithText(CupertinoTextField, 'field 1'),
        "j'aime la poutine",
      );
      await tester.pump();

      // Tap an area inside the EditableText but with no text.
      await tester.longPressAt(tester.getTopRight(find.text("j'aime la poutine")));
      await tester.pumpAndSettle();
      await tester.pump(const Duration(milliseconds: 200));

      await tester.tap(find.text('Select All'));
      await tester.pump();
      await tester.pump(const Duration(milliseconds: 200));

      await tester.tap(find.text('Cut'));
      await tester.pump();

      // Placeholder 1 is back since the text is cut.
      expect(find.text('field 1'), findsOneWidget);
      expect(find.text('field 2'), findsOneWidget);

      await tester.longPress(
        find.text('field 2'),
        warnIfMissed: false,
      ); // can't actually hit placeholder
      await tester.pump();
      await tester.pump(const Duration(milliseconds: 200));

      await tester.tap(find.text('Paste'));
      await tester.pump();

      expect(find.text('field 1'), findsOneWidget);
      expect(find.text("j'aime la poutine"), findsOneWidget);

      final Element placeholder2Element = tester.element(find.text('field 2'));
      expect(Visibility.of(placeholder2Element), false);
    },
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  testWidgets(
    'tap moves cursor to the edge of the word it tapped on',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

      await tester.tapAt(textFieldStart + const Offset(50.0, 5.0));
      await tester.pump();

      // We moved the cursor.
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 7, affinity: TextAffinity.upstream),
      );

      // But don't trigger the toolbar.
      expect(find.byType(CupertinoButton), findsNothing);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
  );

  testWidgets(
    'slow double tap does not trigger double tap',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      // On iOS/iPadOS, during a tap we select the edge of the word closest to the tap.
      // On macOS, we select the precise position of the tap.
      final isTargetPlatformIOS = defaultTargetPlatform == TargetPlatform.iOS;
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final Offset pos = textOffsetToPosition(tester, 6); // Index of 'Atwate|r'.

      await tester.tapAt(pos);
      await tester.pump(const Duration(milliseconds: 500));
      await tester.tapAt(pos);
      await tester.pump();

      // Plain collapsed selection.
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, isTargetPlatformIOS ? 7 : 6);

      // Toolbar shows on mobile.
      if (isTargetPlatformIOS) {
        expectCupertinoToolbarForCollapsedSelection();
      } else {
        // After a tap, macOS does not show a selection toolbar for a collapsed selection.
        expectNoCupertinoToolbar();
      }
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'Tapping on a collapsed selection toggles the toolbar',
    (WidgetTester tester) async {
      final controller = TextEditingController(
        text:
            'Atwater Peel Sherbrooke Bonaventure Angrignon Peel Côte-des-Neigse Atwater Peel Sherbrooke Bonaventure Angrignon Peel Côte-des-Neiges',
      );
      addTearDown(controller.dispose);
      // On iOS/iPadOS, during a tap we select the edge of the word closest to the tap.
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller, maxLines: 2)),
        ),
      );

      final double lineHeight = findRenderEditable(tester).preferredLineHeight;
      final Offset begPos = textOffsetToPosition(tester, 0);
      final Offset endPos =
          textOffsetToPosition(tester, 35) +
          const Offset(
            200.0,
            0.0,
          ); // Index of 'Bonaventure|' + Offset(200.0,0), which is at the end of the first line.
      final Offset vPos = textOffsetToPosition(tester, 29); // Index of 'Bonav|enture'.
      final Offset wPos = textOffsetToPosition(tester, 3); // Index of 'Atw|ater'.

      // This tap just puts the cursor somewhere different than where the double
      // tap will occur to test that the double tap moves the existing cursor first.
      await tester.tapAt(wPos);
      await tester.pump(const Duration(milliseconds: 500));

      await tester.tapAt(vPos);
      await tester.pump(const Duration(milliseconds: 500));
      // First tap moved the cursor. Here we tap the position where 'v' is located.
      // On iOS this will select the closest word edge, in this case the cursor is placed
      // at the end of the word 'Bonaventure|'.
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 35);
      expect(find.byType(CupertinoButton), findsNothing);

      await tester.tapAt(vPos);
      await tester.pumpAndSettle(const Duration(milliseconds: 500));
      // Second tap toggles the toolbar. Here we tap on 'v' again, and select the word edge. Since
      // the selection has not changed we toggle the toolbar.
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 35);
      expectCupertinoToolbarForCollapsedSelection();

      // Tap the 'v' position again to hide the toolbar.
      await tester.tapAt(vPos);
      await tester.pumpAndSettle();
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 35);
      expect(find.byType(CupertinoButton), findsNothing);

      // Long press at the end of the first line to move the cursor to the end of the first line
      // where the word wrap is. Since there is a word wrap here, and the direction of the text is LTR,
      // the TextAffinity will be upstream and against the natural direction. The toolbar is also
      // shown after a long press.
      await tester.longPressAt(endPos);
      await tester.pumpAndSettle(const Duration(milliseconds: 500));
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 46);
      expect(controller.selection.affinity, TextAffinity.upstream);
      expectCupertinoToolbarForCollapsedSelection();

      // Tap at the same position to toggle the toolbar.
      await tester.tapAt(endPos);
      await tester.pumpAndSettle();
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 46);
      expect(controller.selection.affinity, TextAffinity.upstream);
      expectNoCupertinoToolbar();

      // Tap at the beginning of the second line to move the cursor to the front of the first word on the
      // second line, where the word wrap is. Since there is a word wrap here, and the direction of the text is LTR,
      // the TextAffinity will be downstream and following the natural direction. The toolbar will be hidden after this tap.
      await tester.tapAt(begPos + Offset(0.0, lineHeight));
      await tester.pumpAndSettle();
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 46);
      expect(controller.selection.affinity, TextAffinity.downstream);
      expectNoCupertinoToolbar();
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
  );

  testWidgets(
    'Tapping on a non-collapsed selection toggles the toolbar and retains the selection',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      // On iOS/iPadOS, during a tap we select the edge of the word closest to the tap.
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final Offset vPos = textOffsetToPosition(tester, 29); // Index of 'Bonav|enture'.
      final Offset ePos =
          textOffsetToPosition(tester, 35) +
          const Offset(
            7.0,
            0.0,
          ); // Index of 'Bonaventure|' + Offset(7.0,0), which taps slightly to the right of the end of the text.
      final Offset wPos = textOffsetToPosition(tester, 3); // Index of 'Atw|ater'.

      // This tap just puts the cursor somewhere different than where the double
      // tap will occur to test that the double tap moves the existing cursor first.
      await tester.tapAt(wPos);
      await tester.pump(const Duration(milliseconds: 500));

      await tester.tapAt(vPos);
      await tester.pump(const Duration(milliseconds: 50));
      // First tap moved the cursor.
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 35);
      await tester.tapAt(vPos);
      await tester.pumpAndSettle(const Duration(milliseconds: 500));

      // Second tap selects the word around the cursor.
      expect(controller.selection, const TextSelection(baseOffset: 24, extentOffset: 35));

      expectCupertinoToolbarForPartialSelection();

      // Tap the selected word to hide the toolbar and retain the selection.
      await tester.tapAt(vPos);
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 24, extentOffset: 35));
      expect(find.byType(CupertinoButton), findsNothing);

      // Tap the selected word to show the toolbar and retain the selection.
      await tester.tapAt(vPos);
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 24, extentOffset: 35));

      expectCupertinoToolbarForPartialSelection();

      // Tap past the selected word to move the cursor and hide the toolbar.
      await tester.tapAt(ePos);
      await tester.pumpAndSettle();
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 35);

      expect(find.byType(CupertinoButton), findsNothing);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
  );

  testWidgets(
    'double tap selects word for non-Apple platforms',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      // Long press to select 'Atwater'.
      const index = 3;
      await tester.longPressAt(textOffsetToPosition(tester, index));
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 7));

      // Tap elsewhere to hide the context menu so that subsequent taps don't
      // collide with it.
      await tester.tapAt(textOffsetToPosition(tester, controller.text.length));
      await tester.pump();
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 35, affinity: TextAffinity.upstream),
      );

      // Double tap in the middle of 'Peel' to select the word.
      await tester.tapAt(textOffsetToPosition(tester, 10));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.tapAt(textOffsetToPosition(tester, 10));
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 8, extentOffset: 12));

      // The toolbar now shows up.
      expectCupertinoToolbarForPartialSelection();

      // Tap somewhere else to move the cursor.
      await tester.tapAt(textOffsetToPosition(tester, index));
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection.collapsed(offset: index));
    },
    variant: TargetPlatformVariant.all(
      excluding: <TargetPlatform>{TargetPlatform.iOS, TargetPlatform.macOS},
    ),
  );

  testWidgets(
    'double tap selects word for Apple platforms',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(autofocus: true, controller: controller)),
        ),
      );

      // This extra pump is so autofocus can propagate to renderEditable.
      await tester.pump();

      // Long press to put the cursor after the "w".
      const index = 3;
      await tester.longPressAt(textOffsetToPosition(tester, index));
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection.collapsed(offset: index));

      // Double tap to select the word around the cursor. Move slightly left of
      // the previous tap in order to avoid hitting the text selection toolbar
      // on Mac.
      await tester.tapAt(textOffsetToPosition(tester, index) - const Offset(1.0, 0.0));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.tapAt(textOffsetToPosition(tester, index));
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 7));

      expectCupertinoToolbarForPartialSelection();
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets('double tap does not select word on read-only obscured field', (
    WidgetTester tester,
  ) async {
    final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(readOnly: true, obscureText: true, controller: controller),
        ),
      ),
    );

    // Long press to put the cursor after the "w".
    const index = 3;
    await tester.longPressAt(textOffsetToPosition(tester, index));
    await tester.pumpAndSettle();

    // Second tap doesn't select anything.
    await tester.tapAt(textOffsetToPosition(tester, index));
    await tester.pump(const Duration(milliseconds: 50));
    await tester.tapAt(textOffsetToPosition(tester, index));
    await tester.pumpAndSettle();
    expect(controller.selection, const TextSelection.collapsed(offset: 35));

    // Selected text shows nothing.
    expect(find.byType(CupertinoButton), findsNothing);
  });

  testWidgets('Can double click + drag with a mouse to select word by word', (
    WidgetTester tester,
  ) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: CupertinoPageScaffold(
          child: CupertinoTextField(
            dragStartBehavior: DragStartBehavior.down,
            controller: controller,
          ),
        ),
      ),
    );

    const testValue = 'abc def ghi';
    await tester.enterText(find.byType(CupertinoTextField), testValue);
    await tester.pumpAndSettle(const Duration(milliseconds: 200));

    final Offset ePos = textOffsetToPosition(tester, testValue.indexOf('e'));
    final Offset hPos = textOffsetToPosition(tester, testValue.indexOf('h'));

    // Tap on text field to gain focus, and set selection to '|e'.
    final TestGesture gesture = await tester.startGesture(ePos, kind: PointerDeviceKind.mouse);
    await tester.pump();
    await gesture.up();
    await tester.pump();
    expect(controller.selection.isCollapsed, true);
    expect(controller.selection.baseOffset, testValue.indexOf('e'));

    // Here we tap on '|e' again, to register a double tap. This will select
    // the word at the tapped position.
    await gesture.down(ePos);
    await tester.pump();

    expect(controller.selection.baseOffset, 4);
    expect(controller.selection.extentOffset, 7);

    // Drag, right after the double tap, to select word by word.
    // Moving to the position of 'h', will extend the selection to 'ghi'.
    await gesture.moveTo(hPos);
    await tester.pumpAndSettle();

    expect(controller.selection.baseOffset, testValue.indexOf('d'));
    expect(controller.selection.extentOffset, testValue.indexOf('i') + 1);
  });

  testWidgets('Can double tap + drag to select word by word', (WidgetTester tester) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: CupertinoPageScaffold(
          child: CupertinoTextField(
            dragStartBehavior: DragStartBehavior.down,
            controller: controller,
          ),
        ),
      ),
    );

    const testValue = 'abc def ghi';
    await tester.enterText(find.byType(CupertinoTextField), testValue);
    await tester.pumpAndSettle(const Duration(milliseconds: 200));

    final Offset ePos = textOffsetToPosition(tester, testValue.indexOf('e'));
    final Offset hPos = textOffsetToPosition(tester, testValue.indexOf('h'));

    // Tap on text field to gain focus, and set selection to '|e'.
    final TestGesture gesture = await tester.startGesture(ePos);
    await tester.pump();
    await gesture.up();
    await tester.pump();

    expect(controller.selection.isCollapsed, true);
    expect(controller.selection.baseOffset, testValue.indexOf('e'));

    // Here we tap on '|e' again, to register a double tap. This will select
    // the word at the tapped position.
    await gesture.down(ePos);
    await tester.pumpAndSettle();

    expect(controller.selection.baseOffset, 4);
    expect(controller.selection.extentOffset, 7);

    // Drag, right after the double tap, to select word by word.
    // Moving to the position of 'h', will extend the selection to 'ghi'.
    await gesture.moveTo(hPos);
    await tester.pumpAndSettle();

    // Toolbar should be hidden during a drag.
    expect(find.byType(CupertinoButton), findsNothing);
    expect(controller.selection.baseOffset, testValue.indexOf('d'));
    expect(controller.selection.extentOffset, testValue.indexOf('i') + 1);

    // Toolbar should re-appear after a drag.
    await gesture.up();
    await tester.pump();
    expectCupertinoToolbarForPartialSelection();

    // Skip the magnifier hide animation, so it can release resources.
    await tester.pump(const Duration(milliseconds: 150));
  });

  testWidgets('Readonly text field does not have tap action', (WidgetTester tester) async {
    final semantics = SemanticsTester(tester);

    await tester.pumpWidget(
      const CupertinoApp(home: Center(child: CupertinoTextField(maxLength: 10, readOnly: true))),
    );

    expect(
      semantics,
      isNot(
        includesNodeWith(actions: <SemanticsAction>[SemanticsAction.tap, SemanticsAction.focus]),
      ),
    );

    semantics.dispose();
  });

  testWidgets(
    'double tap selects word and first tap of double tap moves cursor',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      // On iOS/iPadOS, during a tap we select the edge of the word closest to the tap.
      // On macOS, we select the precise position of the tap.
      final isTargetPlatformIOS = defaultTargetPlatform == TargetPlatform.iOS;
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final Offset ePos = textOffsetToPosition(tester, 6); // Index of 'Atwate|r'.
      final Offset pPos = textOffsetToPosition(tester, 9); // Index of 'P|eel'.

      await tester.tapAt(ePos);
      await tester.pump(const Duration(milliseconds: 500));

      await tester.tapAt(pPos);
      await tester.pump(const Duration(milliseconds: 50));
      // First tap moved the cursor.
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, isTargetPlatformIOS ? 12 : 9);

      await tester.tapAt(pPos);
      await tester.pumpAndSettle();

      // Second tap selects the word around the cursor.
      expect(controller.selection, const TextSelection(baseOffset: 8, extentOffset: 12));

      expectCupertinoToolbarForPartialSelection();
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets('double tap hold selects word', (WidgetTester tester) async {
    final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

    await tester.tapAt(textFieldStart + const Offset(150.0, 5.0));
    await tester.pump(const Duration(milliseconds: 50));
    final TestGesture gesture = await tester.startGesture(
      textFieldStart + const Offset(150.0, 5.0),
    );
    // Hold the press.
    await tester.pumpAndSettle();

    expect(controller.selection, const TextSelection(baseOffset: 8, extentOffset: 12));

    expectCupertinoToolbarForPartialSelection();

    await gesture.up();
    await tester.pump();

    // Still selected.
    expect(controller.selection, const TextSelection(baseOffset: 8, extentOffset: 12));
    expectCupertinoToolbarForPartialSelection();
  }, variant: TargetPlatformVariant.all());

  testWidgets(
    'tap after a double tap select is not affected',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      // On iOS/iPadOS, during a tap we select the edge of the word closest to the tap.
      // On macOS, we select the precise position of the tap.
      final isTargetPlatformIOS = defaultTargetPlatform == TargetPlatform.iOS;
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final Offset pPos = textOffsetToPosition(tester, 9); // Index of 'P|eel'.
      final Offset ePos = textOffsetToPosition(tester, 6); // Index of 'Atwate|r'

      await tester.tapAt(pPos);
      await tester.pump(const Duration(milliseconds: 50));
      // First tap moved the cursor.
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, isTargetPlatformIOS ? 12 : 9);

      await tester.tapAt(pPos);
      await tester.pump(const Duration(milliseconds: 500));

      await tester.tapAt(ePos);
      await tester.pump();

      // Plain collapsed selection at the edge of first word. In iOS 12, the
      // first tap after a double tap ends up putting the cursor at where
      // you tapped instead of the edge like every other single tap. This is
      // likely a bug in iOS 12 and not present in other versions.
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, isTargetPlatformIOS ? 7 : 6);

      // No toolbar.
      expect(find.byType(CupertinoButton), findsNothing);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'double tapping a space selects the previous word on iOS',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: ' blah blah  \n  blah');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller, maxLines: 2)),
        ),
      );

      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, -1);
      expect(controller.value.selection.extentOffset, -1);

      // Put the cursor at the end of the field.
      await tester.tapAt(textOffsetToPosition(tester, 19));
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 19);
      expect(controller.value.selection.extentOffset, 19);

      // Double tapping the second space selects the previous word.
      await tester.pump(const Duration(milliseconds: 500));
      await tester.tapAt(textOffsetToPosition(tester, 5));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.tapAt(textOffsetToPosition(tester, 5));
      await tester.pumpAndSettle();
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 1);
      expect(controller.value.selection.extentOffset, 5);

      // Put the cursor at the end of the field.
      await tester.tapAt(textOffsetToPosition(tester, 19));
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 19);
      expect(controller.value.selection.extentOffset, 19);

      // Double tapping the first space selects the space.
      await tester.pump(const Duration(milliseconds: 500));
      await tester.tapAt(textOffsetToPosition(tester, 0));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.tapAt(textOffsetToPosition(tester, 0));
      await tester.pumpAndSettle();
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 0);
      expect(controller.value.selection.extentOffset, 1);

      // Put the cursor at the end of the field.
      await tester.tapAt(textOffsetToPosition(tester, 19));
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 19);
      expect(controller.value.selection.extentOffset, 19);

      // Double tapping the last space selects all previous contiguous spaces on
      // both lines and the previous word.
      await tester.pump(const Duration(milliseconds: 500));
      await tester.tapAt(textOffsetToPosition(tester, 14));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.tapAt(textOffsetToPosition(tester, 14));
      await tester.pumpAndSettle();
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 6);
      expect(controller.value.selection.extentOffset, 14);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
  );

  testWidgets(
    'double tapping a space selects the space on Mac',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: ' blah blah');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, -1);
      expect(controller.value.selection.extentOffset, -1);

      // Put the cursor at the end of the field.
      await tester.tapAt(textOffsetToPosition(tester, 10));
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 10);
      expect(controller.value.selection.extentOffset, 10);

      // Double tapping the second space selects it.
      await tester.pump(const Duration(milliseconds: 500));
      await tester.tapAt(textOffsetToPosition(tester, 5));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.tapAt(textOffsetToPosition(tester, 5));
      await tester.pumpAndSettle();

      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 5);
      expect(controller.value.selection.extentOffset, 6);

      // Tap at the end of the text to move the selection to the end. On some
      // platforms, the context menu "Cut" button blocks this tap, so move it out
      // of the way by an Offset.
      await tester.tapAt(textOffsetToPosition(tester, 10) + const Offset(200.0, 0.0));
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 10);
      expect(controller.value.selection.extentOffset, 10);

      // Double tapping the first space selects it.
      await tester.pump(const Duration(milliseconds: 500));
      await tester.tapAt(textOffsetToPosition(tester, 0));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.tapAt(textOffsetToPosition(tester, 0));
      await tester.pumpAndSettle();
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 0);
      expect(controller.value.selection.extentOffset, 1);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.macOS}),
  );

  testWidgets(
    'double clicking a space selects the space on Mac',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: ' blah blah');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, -1);
      expect(controller.value.selection.extentOffset, -1);

      // Put the cursor at the end of the field.
      final TestGesture gesture = await tester.startGesture(
        textOffsetToPosition(tester, 10),
        pointer: 7,
        kind: PointerDeviceKind.mouse,
      );
      await tester.pump();
      await gesture.up();
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 10);
      expect(controller.value.selection.extentOffset, 10);

      // Double tapping the second space selects it.
      await tester.pump(const Duration(milliseconds: 500));
      await gesture.down(textOffsetToPosition(tester, 5));
      await tester.pump();
      await gesture.up();
      await tester.pump(const Duration(milliseconds: 50));
      await gesture.down(textOffsetToPosition(tester, 5));
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle(kDoubleTapTimeout);
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 5);
      expect(controller.value.selection.extentOffset, 6);

      // Put the cursor at the end of the field.
      await gesture.down(textOffsetToPosition(tester, 10));
      await tester.pump();
      await gesture.up();
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 10);
      expect(controller.value.selection.extentOffset, 10);

      // Double tapping the first space selects it.
      await tester.pump(const Duration(milliseconds: 500));
      await gesture.down(textOffsetToPosition(tester, 0));
      await tester.pump();
      await gesture.up();
      await tester.pump(const Duration(milliseconds: 50));
      await gesture.down(textOffsetToPosition(tester, 0));
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle();
      expect(controller.value.selection, isNotNull);
      expect(controller.value.selection.baseOffset, 0);
      expect(controller.value.selection.extentOffset, 1);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.macOS}),
  );

  testWidgets('An obscured CupertinoTextField is not selectable when disabled', (
    WidgetTester tester,
  ) async {
    final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            controller: controller,
            obscureText: true,
            enableInteractiveSelection: false,
          ),
        ),
      ),
    );

    final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

    await tester.tapAt(textFieldStart + const Offset(150.0, 5.0));
    await tester.pump(const Duration(milliseconds: 50));
    final TestGesture gesture = await tester.startGesture(
      textFieldStart + const Offset(150.0, 5.0),
    );
    // Hold the press.
    await tester.pump(const Duration(milliseconds: 500));

    // Nothing is selected despite the double tap long press gesture.
    expect(controller.selection, const TextSelection(baseOffset: 35, extentOffset: 35));

    // The selection menu is not present.
    expectNoCupertinoToolbar();

    await gesture.up();
    await tester.pump();

    // Still nothing selected and no selection menu.
    expect(controller.selection, const TextSelection(baseOffset: 35, extentOffset: 35));
    expectNoCupertinoToolbar();
  });

  testWidgets('A read-only obscured CupertinoTextField is not selectable', (
    WidgetTester tester,
  ) async {
    final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(controller: controller, obscureText: true, readOnly: true),
        ),
      ),
    );

    final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

    await tester.tapAt(textFieldStart + const Offset(150.0, 5.0));
    await tester.pump(const Duration(milliseconds: 50));
    final TestGesture gesture = await tester.startGesture(
      textFieldStart + const Offset(150.0, 5.0),
    );
    // Hold the press.
    await tester.pump(const Duration(milliseconds: 500));

    // Nothing is selected despite the double tap long press gesture.
    expect(controller.selection, const TextSelection(baseOffset: 35, extentOffset: 35));

    // The selection menu is not present.
    expectNoCupertinoToolbar();

    await gesture.up();
    await tester.pump();

    // Still nothing selected and no selection menu.
    expect(controller.selection, const TextSelection.collapsed(offset: 35));
    expectNoCupertinoToolbar();
  });

  testWidgets('An obscured CupertinoTextField is selectable by default', (
    WidgetTester tester,
  ) async {
    final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller, obscureText: true)),
      ),
    );

    final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

    await tester.tapAt(textFieldStart + const Offset(150.0, 5.0));
    await tester.pump(const Duration(milliseconds: 50));
    final TestGesture gesture = await tester.startGesture(
      textFieldStart + const Offset(150.0, 5.0),
    );
    // Hold the press.
    await tester.pumpAndSettle();

    // The obscured text is treated as one word, should select all
    expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 35));

    // Selected text shows paste toolbar button.
    expect(
      find.byType(CupertinoButton),
      isContextMenuProvidedByPlatform ? findsNothing : findsNWidgets(1),
    );

    await gesture.up();
    await tester.pump();

    // Still selected.
    expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 35));

    expect(
      find.byType(CupertinoButton),
      isContextMenuProvidedByPlatform ? findsNothing : findsNWidgets(1),
    );
  });

  testWidgets(
    'An obscured TextField has correct default context menu',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller, obscureText: true)),
        ),
      );

      final Offset textFieldStart = tester.getCenter(find.byType(CupertinoTextField));

      await tester.tapAt(textFieldStart + const Offset(150.0, 5.0));
      await tester.pump(const Duration(milliseconds: 50));
      await tester.longPressAt(textFieldStart + const Offset(150.0, 5.0));
      await tester.pumpAndSettle();

      // Should only have paste option when whole obscure text is selected.
      expect(find.text('Paste'), findsOneWidget);
      expect(find.text('Copy'), findsNothing);
      expect(find.text('Cut'), findsNothing);
      expect(find.text('Select All'), findsNothing);

      // Tap to cancel selection.
      final Offset textFieldEnd = tester.getTopRight(find.byType(CupertinoTextField));
      await tester.tapAt(textFieldEnd + const Offset(-10.0, 5.0));
      await tester.pump(const Duration(milliseconds: 50));
      // Long tap at the end.
      await tester.longPressAt(textFieldEnd + const Offset(-10.0, 5.0));
      await tester.pumpAndSettle();

      // Should have paste and select all options when collapse.
      expect(find.text('Paste'), findsOneWidget);
      expect(find.text('Select All'), findsOneWidget);
      expect(find.text('Copy'), findsNothing);
      expect(find.text('Cut'), findsNothing);
    },
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  testWidgets(
    'long press selects the word at the long press position and shows toolbar on non-Apple platforms',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

      await tester.longPressAt(textFieldStart + const Offset(50.0, 5.0));
      await tester.pumpAndSettle();

      // Select word, 'Atwater, on long press.
      expect(
        controller.selection,
        const TextSelection(baseOffset: 0, extentOffset: 7, affinity: TextAffinity.upstream),
      );

      expectCupertinoToolbarForPartialSelection();
    },
    variant: TargetPlatformVariant.all(
      excluding: <TargetPlatform>{TargetPlatform.iOS, TargetPlatform.macOS},
    ),
  );

  testWidgets(
    'long press moves cursor to the exact long press position and shows toolbar on Apple platforms',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(autofocus: true, controller: controller)),
        ),
      );

      // This extra pump is so autofocus can propagate to renderEditable.
      await tester.pump();

      final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

      await tester.longPressAt(textFieldStart + const Offset(50.0, 5.0));
      await tester.pumpAndSettle();

      // Collapsed cursor for iOS long press.
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 3, affinity: TextAffinity.upstream),
      );

      expectCupertinoToolbarForCollapsedSelection();
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'long press tap cannot initiate a double tap',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(autofocus: true, controller: controller)),
        ),
      );

      // This extra pump is so autofocus can propagate to renderEditable.
      await tester.pump();

      final Offset ePos = textOffsetToPosition(tester, 6); // Index of 'Atwate|r'

      await tester.longPressAt(ePos);
      await tester.pumpAndSettle(const Duration(milliseconds: 50));

      expectCupertinoToolbarForCollapsedSelection();

      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, 6);

      // Tap in a slightly different position to avoid hitting the context menu
      // on desktop.
      final isTargetPlatformIOS = defaultTargetPlatform == TargetPlatform.iOS;
      final Offset secondTapPos = isTargetPlatformIOS ? ePos : ePos + const Offset(-1.0, 0.0);
      await tester.tapAt(secondTapPos);
      await tester.pump();

      // The cursor does not move and the toolbar is toggled.
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, 6);

      // The toolbar from the long press is now dismissed by the second tap.
      expectNoCupertinoToolbar();
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'long press drag selects word by word and shows toolbar on lift on non-Apple platforms',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

      final TestGesture gesture = await tester.startGesture(
        textFieldStart + const Offset(50.0, 5.0),
      );
      await tester.pump(const Duration(milliseconds: 500));

      // Long press on non-Apple platforms selects the word at the long press position.
      expect(
        controller.selection,
        const TextSelection(baseOffset: 0, extentOffset: 7, affinity: TextAffinity.upstream),
      );
      // Toolbar only shows up on long press up.
      expectNoCupertinoToolbar();

      await gesture.moveBy(const Offset(100, 0));
      await tester.pump();

      // The selection is extended word by word to the drag position.
      expect(
        controller.selection,
        const TextSelection(baseOffset: 0, extentOffset: 12, affinity: TextAffinity.upstream),
      );
      expectNoCupertinoToolbar();

      await gesture.moveBy(const Offset(200, 0));
      await tester.pump();

      // The selection is extended word by word to the drag position.
      expect(
        controller.selection,
        const TextSelection(baseOffset: 0, extentOffset: 23, affinity: TextAffinity.upstream),
      );
      expectNoCupertinoToolbar();

      await gesture.up();
      await tester.pumpAndSettle();

      // The selection isn't affected by the gesture lift.
      expect(
        controller.selection,
        const TextSelection(baseOffset: 0, extentOffset: 23, affinity: TextAffinity.upstream),
      );

      // The toolbar now shows up.
      expectCupertinoToolbarForPartialSelection();
    },
    variant: TargetPlatformVariant.all(
      excluding: <TargetPlatform>{TargetPlatform.iOS, TargetPlatform.macOS},
    ),
  );

  testWidgets(
    'long press drag on a focused TextField moves the cursor under the drag and shows toolbar on lift on Apple platforms',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(autofocus: true, controller: controller)),
        ),
      );

      // This extra pump is so autofocus can propagate to renderEditable.
      await tester.pump();

      final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

      final TestGesture gesture = await tester.startGesture(
        textFieldStart + const Offset(50.0, 5.0),
      );
      await tester.pump(const Duration(milliseconds: 500));

      // Long press on iOS shows collapsed selection cursor.
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 3, affinity: TextAffinity.upstream),
      );
      // Toolbar only shows up on long press up.
      expectNoCupertinoToolbar();

      await gesture.moveBy(const Offset(50, 0));
      await tester.pump();

      // The selection position is now moved with the drag.
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 6, affinity: TextAffinity.upstream),
      );
      expectNoCupertinoToolbar();

      await gesture.moveBy(const Offset(50, 0));
      await tester.pump();

      // The selection position is now moved with the drag.
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 9, affinity: TextAffinity.upstream),
      );
      expectNoCupertinoToolbar();

      await gesture.up();
      await tester.pumpAndSettle();

      // The selection isn't affected by the gesture lift.
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 9, affinity: TextAffinity.upstream),
      );
      // The toolbar now shows up.
      expectCupertinoToolbarForCollapsedSelection();
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'long press drag can edge scroll on non-Apple platforms',
    (WidgetTester tester) async {
      final controller = TextEditingController(
        text: 'Atwater Peel Sherbrooke Bonaventure Angrignon Peel Côte-des-Neiges',
      );
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final RenderEditable renderEditable = findRenderEditable(tester);

      List<TextSelectionPoint> lastCharEndpoint = renderEditable.getEndpointsForSelection(
        const TextSelection.collapsed(offset: 66), // Last character's position.
      );

      expect(lastCharEndpoint.length, 1);
      // Just testing the test and making sure that the last character is off
      // the right side of the screen.
      expect(lastCharEndpoint[0].point.dx, moreOrLessEquals(1094.73, epsilon: 0.25));

      final Offset textfieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

      final TestGesture gesture = await tester.startGesture(textfieldStart);
      await tester.pump(const Duration(milliseconds: 500));

      expect(
        controller.selection,
        const TextSelection(baseOffset: 0, extentOffset: 7, affinity: TextAffinity.upstream),
      );
      expect(find.byType(CupertinoButton), findsNothing);

      await gesture.moveBy(const Offset(950, 5));
      // To the edge of the screen basically.
      await tester.pump();
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 59));
      // Keep moving out.
      await gesture.moveBy(const Offset(1, 0));
      await tester.pump();
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 66));
      await gesture.moveBy(const Offset(1, 0));
      await tester.pump();
      expect(
        controller.selection,
        const TextSelection(baseOffset: 0, extentOffset: 66, affinity: TextAffinity.upstream),
      ); // We're at the edge now.
      expect(find.byType(CupertinoButton), findsNothing);

      await gesture.up();
      await tester.pumpAndSettle();

      // The selection isn't affected by the gesture lift.
      expect(
        controller.selection,
        const TextSelection(baseOffset: 0, extentOffset: 66, affinity: TextAffinity.upstream),
      );

      // The toolbar now shows up.
      expectCupertinoToolbarForFullSelection();

      lastCharEndpoint = renderEditable.getEndpointsForSelection(
        const TextSelection.collapsed(offset: 66), // Last character's position.
      );

      expect(lastCharEndpoint.length, 1);
      // The last character is now on screen near the right edge.
      expect(lastCharEndpoint[0].point.dx, moreOrLessEquals(785.40, epsilon: 1));

      final List<TextSelectionPoint> firstCharEndpoint = renderEditable.getEndpointsForSelection(
        const TextSelection.collapsed(offset: 0), // First character's position.
      );
      expect(firstCharEndpoint.length, 1);
      // The first character is now offscreen to the left.
      expect(firstCharEndpoint[0].point.dx, moreOrLessEquals(-310.30, epsilon: 1));
    },
    variant: TargetPlatformVariant.all(
      excluding: <TargetPlatform>{TargetPlatform.iOS, TargetPlatform.macOS},
    ),
  );

  testWidgets(
    'long press drag can edge scroll on Apple platforms',
    (WidgetTester tester) async {
      final controller = TextEditingController(
        text: 'Atwater Peel Sherbrooke Bonaventure Angrignon Peel Côte-des-Neiges',
      );
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(autofocus: true, controller: controller)),
        ),
      );

      // This extra pump is so autofocus can propagate to renderEditable.
      await tester.pump();

      final RenderEditable renderEditable = tester.renderObject<RenderEditable>(
        find.byElementPredicate((Element element) => element.renderObject is RenderEditable).last,
      );

      List<TextSelectionPoint> lastCharEndpoint = renderEditable.getEndpointsForSelection(
        const TextSelection.collapsed(offset: 66), // Last character's position.
      );

      expect(lastCharEndpoint.length, 1);
      // Just testing the test and making sure that the last character is off
      // the right side of the screen.
      expect(lastCharEndpoint[0].point.dx, moreOrLessEquals(1094.73, epsilon: 0.25));

      final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

      final TestGesture gesture = await tester.startGesture(textFieldStart + const Offset(300, 5));
      await tester.pump(const Duration(milliseconds: 500));

      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 18, affinity: TextAffinity.upstream),
      );
      expect(find.byType(CupertinoButton), findsNothing);

      await gesture.moveBy(const Offset(600, 0));
      // To the edge of the screen basically.
      await tester.pump();
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 54, affinity: TextAffinity.upstream),
      );
      // Keep moving out.
      await gesture.moveBy(const Offset(1, 0));
      await tester.pump();
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 61, affinity: TextAffinity.upstream),
      );
      await gesture.moveBy(const Offset(1, 0));
      await tester.pump();
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 66, affinity: TextAffinity.upstream),
      ); // We're at the edge now.
      expect(find.byType(CupertinoButton), findsNothing);

      await gesture.up();
      await tester.pumpAndSettle();

      // The selection isn't affected by the gesture lift.
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 66, affinity: TextAffinity.upstream),
      );
      // The toolbar now shows up.
      expectCupertinoToolbarForCollapsedSelection();

      lastCharEndpoint = renderEditable.getEndpointsForSelection(
        const TextSelection.collapsed(offset: 66), // Last character's position.
      );

      expect(lastCharEndpoint.length, 1);
      // The last character is now on screen.
      expect(lastCharEndpoint[0].point.dx, moreOrLessEquals(784.73, epsilon: 0.25));

      final List<TextSelectionPoint> firstCharEndpoint = renderEditable.getEndpointsForSelection(
        const TextSelection.collapsed(offset: 0), // First character's position.
      );
      expect(firstCharEndpoint.length, 1);
      // The first character is now offscreen to the left.
      expect(firstCharEndpoint[0].point.dx, moreOrLessEquals(-310.20, epsilon: 0.25));
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'long tap after a double tap select is not affected',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      // On iOS/iPadOS, during a tap we select the edge of the word closest to the tap.
      // On macOS, we select the precise position of the tap.
      final isTargetPlatformIOS = defaultTargetPlatform == TargetPlatform.iOS;
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final Offset pPos = textOffsetToPosition(tester, 9); // Index of 'P|eel'
      final Offset ePos = textOffsetToPosition(tester, 6); // Index of 'Atwate|r'

      await tester.tapAt(pPos);
      await tester.pump(const Duration(milliseconds: 50));
      // First tap moved the cursor to the beginning of the second word.
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, isTargetPlatformIOS ? 12 : 9);
      await tester.tapAt(pPos);
      await tester.pump(const Duration(milliseconds: 500));

      await tester.longPressAt(ePos);
      await tester.pumpAndSettle();

      // Plain collapsed selection at the exact tap position.
      expect(controller.selection, const TextSelection.collapsed(offset: 6));

      // Long press toolbar.
      expectCupertinoToolbarForCollapsedSelection();
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'double tap after a long tap is not affected',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      // On iOS/iPadOS, during a tap we select the edge of the word closest to the tap.
      // On macOS, we select the precise position of the tap.
      final isTargetPlatformIOS = defaultTargetPlatform == TargetPlatform.iOS;
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(autofocus: true, controller: controller)),
        ),
      );

      // This extra pump is so autofocus can propagate to renderEditable.
      await tester.pump();

      // Use a position higher than wPos to avoid tapping the context menu on
      // desktop.
      final Offset pPos =
          textOffsetToPosition(tester, 9) + const Offset(0.0, -20.0); // Index of 'P|eel'
      final Offset wPos = textOffsetToPosition(tester, 3); // Index of 'Atw|ater'

      await tester.longPressAt(wPos);
      await tester.pumpAndSettle(const Duration(milliseconds: 50));

      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, 3);
      expectCupertinoToolbarForCollapsedSelection();

      await tester.tapAt(pPos);
      await tester.pump(const Duration(milliseconds: 50));

      // First tap moved the cursor.
      expect(find.byType(CupertinoButton), findsNothing);
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, isTargetPlatformIOS ? 12 : 9);

      await tester.tapAt(pPos);
      await tester.pumpAndSettle();

      // Double tap selection.
      expect(controller.selection, const TextSelection(baseOffset: 8, extentOffset: 12));
      expectCupertinoToolbarForPartialSelection();
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'double tap chains work',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

      await tester.tapAt(textFieldStart + const Offset(50.0, 5.0));
      await tester.pump(const Duration(milliseconds: 50));
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 7, affinity: TextAffinity.upstream),
      );
      await tester.tapAt(textFieldStart + const Offset(50.0, 5.0));
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 7));
      expectCupertinoToolbarForPartialSelection();

      // Double tap selecting the same word somewhere else is fine.
      await tester.tapAt(textFieldStart + const Offset(100.0, 5.0));
      await tester.pump(const Duration(milliseconds: 50));
      // First tap hides the toolbar, and retains the selection.
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 7));
      expect(find.byType(CupertinoButton), findsNothing);
      // Second tap shows the toolbar, and retains the selection.
      await tester.tapAt(textFieldStart + const Offset(100.0, 5.0));
      // Wait for the consecutive tap timer to timeout so the next
      // tap is not detected as a triple tap.
      await tester.pumpAndSettle(kDoubleTapTimeout);
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 7));
      expectCupertinoToolbarForPartialSelection();

      await tester.tapAt(textFieldStart + const Offset(150.0, 5.0));
      await tester.pump(const Duration(milliseconds: 50));
      // First tap moved the cursor and hides the toolbar.
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 12, affinity: TextAffinity.upstream),
      );
      expect(find.byType(CupertinoButton), findsNothing);
      await tester.tapAt(textFieldStart + const Offset(150.0, 5.0));
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 8, extentOffset: 12));
      expectCupertinoToolbarForPartialSelection();
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
  );

  group('Triple tap/click', () {
    const testValueA =
        'Now is the time for\n' // 20
        'all good people\n' // 20 + 16 => 36
        'to come to the aid\n' // 36 + 19 => 55
        'of their country.'; // 55 + 17 => 72
    const testValueB =
        'Today is the time for\n' // 22
        'all good people\n' // 22 + 16 => 38
        'to come to the aid\n' // 38 + 19 => 57
        'of their country.'; // 57 + 17 => 74
    testWidgets(
      'Can triple tap to select a paragraph on mobile platforms when tapping at a word edge',
      (WidgetTester tester) async {
        // TODO(Renzo-Olivares): Enable, currently broken because selection overlay blocks the TextSelectionGestureDetector.
        final controller = TextEditingController();
        addTearDown(controller.dispose);
        final isTargetPlatformApple = defaultTargetPlatform == TargetPlatform.iOS;

        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
                maxLines: null,
              ),
            ),
          ),
        );

        await tester.enterText(find.byType(CupertinoTextField), testValueA);
        // Skip past scrolling animation.
        await tester.pump();
        await tester.pump(const Duration(milliseconds: 200));
        expect(controller.value.text, testValueA);

        final Offset firstLinePos =
            tester.getTopLeft(find.byType(CupertinoTextField)) + const Offset(110.0, 9.0);

        // Tap on text field to gain focus, and set selection to 'is|' on the first line.
        final TestGesture gesture = await tester.startGesture(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 6);

        // Here we tap on same position again, to register a double tap. This will select
        // the word at the tapped position. On iOS, tapping a whitespace selects the previous word.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.baseOffset, isTargetPlatformApple ? 4 : 6);
        expect(controller.selection.extentOffset, isTargetPlatformApple ? 6 : 7);

        // Here we tap on same position again, to register a triple tap. This will select
        // the paragraph at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 20);
      },
      variant: TargetPlatformVariant.mobile(),
      skip: true, // https://github.com/flutter/flutter/issues/123415
    );

    testWidgets(
      'Can triple tap to select a paragraph on mobile platforms',
      (WidgetTester tester) async {
        final controller = TextEditingController();
        addTearDown(controller.dispose);
        final isTargetPlatformApple = defaultTargetPlatform == TargetPlatform.iOS;

        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
                maxLines: null,
              ),
            ),
          ),
        );

        await tester.enterText(find.byType(CupertinoTextField), testValueB);
        // Skip past scrolling animation.
        await tester.pump();
        await tester.pump(const Duration(milliseconds: 200));
        expect(controller.value.text, testValueB);

        final Offset firstLinePos =
            tester.getTopLeft(find.byType(CupertinoTextField)) + const Offset(50.0, 9.0);

        // Tap on text field to gain focus, and move the selection.
        final TestGesture gesture = await tester.startGesture(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, isTargetPlatformApple ? 5 : 3);

        // Here we tap on same position again, to register a double tap. This will select
        // the word at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 5);

        // Here we tap on same position again, to register a triple tap. This will select
        // the paragraph at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 22);
      },
      variant: TargetPlatformVariant.mobile(),
    );

    testWidgets(
      'Triple click at the beginning of a line should not select the previous paragraph',
      (WidgetTester tester) async {
        // Regression test for https://github.com/flutter/flutter/issues/132126
        final controller = TextEditingController();
        addTearDown(controller.dispose);

        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
                maxLines: null,
              ),
            ),
          ),
        );

        await tester.enterText(find.byType(CupertinoTextField), testValueB);
        // Skip past scrolling animation.
        await tester.pump();
        await tester.pump(const Duration(milliseconds: 200));
        expect(controller.value.text, testValueB);

        final Offset thirdLinePos = textOffsetToPosition(tester, 38);

        // Click on text field to gain focus, and move the selection.
        final TestGesture gesture = await tester.startGesture(
          thirdLinePos,
          kind: PointerDeviceKind.mouse,
        );
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 38);

        // Here we click on same position again, to register a double click. This will select
        // the word at the clicked position.
        await gesture.down(thirdLinePos);
        await gesture.up();

        expect(controller.selection.baseOffset, 38);
        expect(controller.selection.extentOffset, 40);

        // Here we click on same position again, to register a triple click. This will select
        // the paragraph at the clicked position.
        await gesture.down(thirdLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pump();
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 38);
        expect(controller.selection.extentOffset, 57);
      },
      variant: TargetPlatformVariant.all(excluding: <TargetPlatform>{TargetPlatform.linux}),
    );

    testWidgets(
      'Triple click at the end of text should select the previous paragraph',
      (WidgetTester tester) async {
        // Regression test for https://github.com/flutter/flutter/issues/132126.
        final controller = TextEditingController();
        addTearDown(controller.dispose);

        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
                maxLines: null,
              ),
            ),
          ),
        );

        await tester.enterText(find.byType(CupertinoTextField), testValueB);
        // Skip past scrolling animation.
        await tester.pump();
        await tester.pump(const Duration(milliseconds: 200));
        expect(controller.value.text, testValueB);

        final Offset endOfTextPos = textOffsetToPosition(tester, 74);

        // Click on text field to gain focus, and move the selection.
        final TestGesture gesture = await tester.startGesture(
          endOfTextPos,
          kind: PointerDeviceKind.mouse,
        );
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 74);

        // Here we click on same position again, to register a double click.
        await gesture.down(endOfTextPos);
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.baseOffset, 74);
        expect(controller.selection.extentOffset, 74);

        // Here we click on same position again, to register a triple click. This will select
        // the paragraph at the clicked position.
        await gesture.down(endOfTextPos);
        await tester.pump();
        await gesture.up();
        await tester.pump();
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 57);
        expect(controller.selection.extentOffset, 74);
      },
      variant: TargetPlatformVariant.all(excluding: <TargetPlatform>{TargetPlatform.linux}),
    );

    testWidgets(
      'triple tap chains work on Non-Apple mobile platforms',
      (WidgetTester tester) async {
        final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: Center(child: CupertinoTextField(controller: controller)),
            ),
          ),
        );

        final Offset textfieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

        await tester.tapAt(textfieldStart + const Offset(50.0, 9.0));
        await tester.pump(const Duration(milliseconds: 50));
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 3);
        await tester.tapAt(textfieldStart + const Offset(50.0, 9.0));
        await tester.pump();
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 7));
        expectCupertinoToolbarForPartialSelection();

        await tester.tapAt(textfieldStart + const Offset(50.0, 9.0));
        await tester.pumpAndSettle();
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 35));
        // Triple tap selecting the same paragraph somewhere else is fine.
        await tester.tapAt(textfieldStart + const Offset(100.0, 9.0));
        await tester.pump(const Duration(milliseconds: 50));
        // First tap hides the toolbar and moves the selection.
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 6);
        expectNoCupertinoToolbar();

        // Second tap shows the toolbar and selects the word.
        await tester.tapAt(textfieldStart + const Offset(100.0, 9.0));
        await tester.pump();
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 7));
        expectCupertinoToolbarForPartialSelection();

        // Third tap shows the toolbar and selects the paragraph.
        await tester.tapAt(textfieldStart + const Offset(100.0, 9.0));
        await tester.pumpAndSettle();
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 35));
        expectCupertinoToolbarForFullSelection();

        await tester.tapAt(textfieldStart + const Offset(150.0, 9.0));
        await tester.pump(const Duration(milliseconds: 50));
        // First tap moved the cursor and hid the toolbar.
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 9);
        expect(find.byType(CupertinoButton), findsNothing);
        // Second tap selects the word.
        await tester.tapAt(textfieldStart + const Offset(150.0, 9.0));
        await tester.pump();
        expect(controller.selection, const TextSelection(baseOffset: 8, extentOffset: 12));
        expectCupertinoToolbarForPartialSelection();

        // Third tap selects the paragraph and shows the toolbar.
        await tester.tapAt(textfieldStart + const Offset(150.0, 9.0));
        await tester.pumpAndSettle();
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 35));
        expectCupertinoToolbarForFullSelection();
      },
      variant: const TargetPlatformVariant(<TargetPlatform>{
        TargetPlatform.android,
        TargetPlatform.fuchsia,
      }),
    );

    testWidgets(
      'triple tap chains work on Apple platforms',
      (WidgetTester tester) async {
        final controller = TextEditingController(
          text: 'Atwater Peel Sherbrooke Bonaventure\nThe fox jumped over the fence.',
        );
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: Center(child: CupertinoTextField(controller: controller, maxLines: null)),
            ),
          ),
        );

        final Offset textfieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

        await tester.tapAt(textfieldStart + const Offset(50.0, 9.0));
        await tester.pump(const Duration(milliseconds: 50));
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 7);

        await tester.tapAt(textfieldStart + const Offset(50.0, 9.0));
        await tester.pump();
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 7));
        expectCupertinoToolbarForPartialSelection();

        await tester.tapAt(textfieldStart + const Offset(50.0, 9.0));
        await tester.pumpAndSettle(kDoubleTapTimeout);
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 36));

        // Triple tap selecting the same paragraph somewhere else is fine.
        await tester.tapAt(textfieldStart + const Offset(100.0, 9.0));
        await tester.pump(const Duration(milliseconds: 50));
        // First tap hides the toolbar and retains the selection.
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 36));
        expect(find.byType(CupertinoButton), findsNothing);

        // Second tap shows the toolbar and selects the word.
        await tester.tapAt(textfieldStart + const Offset(100.0, 9.0));
        await tester.pump();
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 7));
        expectCupertinoToolbarForPartialSelection();

        // Third tap shows the toolbar and selects the paragraph.
        await tester.tapAt(textfieldStart + const Offset(100.0, 9.0));
        await tester.pumpAndSettle(kDoubleTapTimeout);
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 36));
        expectCupertinoToolbarForPartialSelection();

        await tester.tapAt(textfieldStart + const Offset(150.0, 25.0));
        await tester.pump(const Duration(milliseconds: 50));
        // First tap moved the cursor and hid the toolbar.
        expect(
          controller.selection,
          const TextSelection.collapsed(offset: 50, affinity: TextAffinity.upstream),
        );
        expect(find.byType(CupertinoButton), findsNothing);

        // Second tap selects the word.
        await tester.tapAt(textfieldStart + const Offset(150.0, 25.0));
        await tester.pump();
        expect(controller.selection, const TextSelection(baseOffset: 44, extentOffset: 50));
        expectCupertinoToolbarForPartialSelection();

        // Third tap selects the paragraph and shows the toolbar.
        await tester.tapAt(textfieldStart + const Offset(150.0, 25.0));
        await tester.pumpAndSettle();
        expect(controller.selection, const TextSelection(baseOffset: 36, extentOffset: 66));
        expectCupertinoToolbarForPartialSelection();
      },
      variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
    );

    testWidgets('triple click chains work', (WidgetTester tester) async {
      final controller = TextEditingController(text: testValueA);
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: Center(child: CupertinoTextField(controller: controller, maxLines: null)),
          ),
        ),
      );

      final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));
      final platformSelectsByLine = defaultTargetPlatform == TargetPlatform.linux;

      // First click moves the cursor to the point of the click, not the edge of
      // the clicked word.
      final TestGesture gesture = await tester.startGesture(
        textFieldStart + const Offset(200.0, 9.0),
        pointer: 7,
        kind: PointerDeviceKind.mouse,
      );
      await tester.pump();
      await gesture.up();
      await tester.pump(const Duration(milliseconds: 50));
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 12);

      // Second click selects the word.
      await gesture.down(textFieldStart + const Offset(200.0, 9.0));
      await tester.pump();
      await gesture.up();
      await tester.pump();
      expect(controller.selection, const TextSelection(baseOffset: 11, extentOffset: 15));

      // Triple click selects the paragraph.
      await gesture.down(textFieldStart + const Offset(200.0, 9.0));
      await tester.pump();
      await gesture.up();
      // Wait for the consecutive tap timer to timeout so the next
      // tap is not detected as a triple tap.
      await tester.pumpAndSettle(kDoubleTapTimeout);
      expect(
        controller.selection,
        TextSelection(baseOffset: 0, extentOffset: platformSelectsByLine ? 19 : 20),
      );

      // Triple click selecting the same paragraph somewhere else is fine.
      await gesture.down(textFieldStart + const Offset(100.0, 9.0));
      await tester.pump();
      await gesture.up();
      await tester.pump(const Duration(milliseconds: 50));
      // First click moved the cursor.
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 6);
      await gesture.down(textFieldStart + const Offset(100.0, 9.0));
      await tester.pump();
      await gesture.up();
      await tester.pump();
      // Second click selected the word.
      expect(controller.selection, const TextSelection(baseOffset: 4, extentOffset: 6));

      await gesture.down(textFieldStart + const Offset(100.0, 9.0));
      await tester.pump();
      await gesture.up();
      // Wait for the consecutive tap timer to timeout so the tap count
      // is reset.
      await tester.pumpAndSettle(kDoubleTapTimeout);
      // Third click selected the paragraph.
      expect(
        controller.selection,
        TextSelection(baseOffset: 0, extentOffset: platformSelectsByLine ? 19 : 20),
      );

      await gesture.down(textFieldStart + const Offset(150.0, 9.0));
      await tester.pump();
      await gesture.up();
      await tester.pump(const Duration(milliseconds: 50));
      // First click moved the cursor.
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 9);
      await gesture.down(textFieldStart + const Offset(150.0, 9.0));
      await tester.pump();
      await gesture.up();
      await tester.pump();
      // Second click selected the word.
      expect(controller.selection, const TextSelection(baseOffset: 7, extentOffset: 10));

      await gesture.down(textFieldStart + const Offset(150.0, 9.0));
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle();
      // Third click selects the paragraph.
      expect(
        controller.selection,
        TextSelection(baseOffset: 0, extentOffset: platformSelectsByLine ? 19 : 20),
      );
    }, variant: TargetPlatformVariant.desktop());

    testWidgets('triple click after a click on desktop platforms', (WidgetTester tester) async {
      final controller = TextEditingController(text: testValueA);
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: Center(child: CupertinoTextField(controller: controller, maxLines: null)),
          ),
        ),
      );

      final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));
      final platformSelectsByLine = defaultTargetPlatform == TargetPlatform.linux;

      final TestGesture gesture = await tester.startGesture(
        textFieldStart + const Offset(50.0, 9.0),
        pointer: 7,
        kind: PointerDeviceKind.mouse,
      );
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle(kDoubleTapTimeout);
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 3);
      // First click moves the selection.
      await gesture.down(textFieldStart + const Offset(150.0, 9.0));
      await tester.pump();
      await gesture.up();
      await tester.pump(const Duration(milliseconds: 50));
      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 9);

      // Double click selection to select a word.
      await gesture.down(textFieldStart + const Offset(150.0, 9.0));
      await tester.pump();
      await gesture.up();
      await tester.pump();
      expect(controller.selection, const TextSelection(baseOffset: 7, extentOffset: 10));

      // Triple click selection to select a paragraph.
      await gesture.down(textFieldStart + const Offset(150.0, 9.0));
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle();
      expect(
        controller.selection,
        TextSelection(baseOffset: 0, extentOffset: platformSelectsByLine ? 19 : 20),
      );
    }, variant: TargetPlatformVariant.desktop());

    testWidgets(
      'Can triple tap to select all on a single-line textfield on mobile platforms',
      (WidgetTester tester) async {
        final controller = TextEditingController(text: testValueB);
        addTearDown(controller.dispose);
        final isTargetPlatformApple = defaultTargetPlatform == TargetPlatform.iOS;

        await tester.pumpWidget(
          CupertinoApp(
            home: Center(child: CupertinoTextField(controller: controller)),
          ),
        );

        final Offset firstLinePos =
            tester.getTopLeft(find.byType(CupertinoTextField)) + const Offset(50.0, 9.0);

        // Tap on text field to gain focus, and set selection somewhere on the first word.
        final TestGesture gesture = await tester.startGesture(firstLinePos, pointer: 7);
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, isTargetPlatformApple ? 5 : 3);

        // Here we tap on same position again, to register a double tap. This will select
        // the word at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 5);

        // Here we tap on same position again, to register a triple tap. This will select
        // the entire text field if it is a single-line field.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 74);
      },
      variant: TargetPlatformVariant.mobile(),
    );

    testWidgets(
      'Can triple click to select all on a single-line textfield on desktop platforms',
      (WidgetTester tester) async {
        final controller = TextEditingController(text: testValueA);
        addTearDown(controller.dispose);

        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
              ),
            ),
          ),
        );

        final Offset firstLinePos = textOffsetToPosition(tester, 5);

        // Tap on text field to gain focus, and set selection to 'i|s' on the first line.
        final TestGesture gesture = await tester.startGesture(
          firstLinePos,
          pointer: 7,
          kind: PointerDeviceKind.mouse,
        );
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 5);

        // Here we tap on same position again, to register a double tap. This will select
        // the word at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.baseOffset, 4);
        expect(controller.selection.extentOffset, 6);

        // Here we tap on same position again, to register a triple tap. This will select
        // the entire text field if it is a single-line field.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 72);
      },
      variant: TargetPlatformVariant.desktop(),
    );

    testWidgets(
      'Can triple click to select a line on Linux',
      (WidgetTester tester) async {
        final controller = TextEditingController();
        addTearDown(controller.dispose);

        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
                maxLines: null,
              ),
            ),
          ),
        );

        await tester.enterText(find.byType(CupertinoTextField), testValueA);
        // Skip past scrolling animation.
        await tester.pump();
        await tester.pump(const Duration(milliseconds: 200));
        expect(controller.value.text, testValueA);

        final Offset firstLinePos = textOffsetToPosition(tester, 5);

        // Tap on text field to gain focus, and set selection to 'i|s' on the first line.
        final TestGesture gesture = await tester.startGesture(
          firstLinePos,
          pointer: 7,
          kind: PointerDeviceKind.mouse,
        );
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 5);

        // Here we tap on same position again, to register a double tap. This will select
        // the word at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.baseOffset, 4);
        expect(controller.selection.extentOffset, 6);

        // Here we tap on same position again, to register a triple tap. This will select
        // the paragraph at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 19);
      },
      variant: TargetPlatformVariant.only(TargetPlatform.linux),
    );

    testWidgets(
      'Can triple click to select a paragraph',
      (WidgetTester tester) async {
        final controller = TextEditingController();
        addTearDown(controller.dispose);

        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
                maxLines: null,
              ),
            ),
          ),
        );

        await tester.enterText(find.byType(CupertinoTextField), testValueA);
        // Skip past scrolling animation.
        await tester.pump();
        await tester.pump(const Duration(milliseconds: 200));
        expect(controller.value.text, testValueA);

        final Offset firstLinePos = textOffsetToPosition(tester, 5);

        // Tap on text field to gain focus, and set selection to 'i|s' on the first line.
        final TestGesture gesture = await tester.startGesture(
          firstLinePos,
          pointer: 7,
          kind: PointerDeviceKind.mouse,
        );
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 5);

        // Here we tap on same position again, to register a double tap. This will select
        // the word at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.baseOffset, 4);
        expect(controller.selection.extentOffset, 6);

        // Here we tap on same position again, to register a triple tap. This will select
        // the paragraph at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 20);
      },
      variant: TargetPlatformVariant.all(excluding: <TargetPlatform>{TargetPlatform.linux}),
    );

    testWidgets(
      'Can triple click + drag to select line by line on Linux',
      (WidgetTester tester) async {
        final controller = TextEditingController();
        addTearDown(controller.dispose);

        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
                maxLines: null,
              ),
            ),
          ),
        );

        await tester.enterText(find.byType(CupertinoTextField), testValueA);
        // Skip past scrolling animation.
        await tester.pump();
        await tester.pump(const Duration(milliseconds: 200));
        expect(controller.value.text, testValueA);

        final Offset firstLinePos = textOffsetToPosition(tester, 5);

        // Tap on text field to gain focus, and set selection to 'i|s' on the first line.
        final TestGesture gesture = await tester.startGesture(
          firstLinePos,
          pointer: 7,
          kind: PointerDeviceKind.mouse,
        );
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 5);

        // Here we tap on same position again, to register a double tap. This will select
        // the word at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.baseOffset, 4);
        expect(controller.selection.extentOffset, 6);

        // Here we tap on the same position again, to register a triple tap. This will select
        // the line at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 19);

        // Drag, down after the triple tap, to select line by line.
        // Moving down will extend the selection to the second line.
        await gesture.moveTo(firstLinePos + const Offset(0, 10.0));
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 35);

        // Moving down will extend the selection to the third line.
        await gesture.moveTo(firstLinePos + const Offset(0, 20.0));
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 54);

        // Moving down will extend the selection to the last line.
        await gesture.moveTo(firstLinePos + const Offset(0, 40.0));
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 72);

        // Moving up will extend the selection to the third line.
        await gesture.moveTo(firstLinePos + const Offset(0, 20.0));
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 54);

        // Moving up will extend the selection to the second line.
        await gesture.moveTo(firstLinePos + const Offset(0, 10.0));
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 35);

        // Moving up will extend the selection to the first line.
        await gesture.moveTo(firstLinePos);
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 19);
      },
      variant: TargetPlatformVariant.only(TargetPlatform.linux),
    );

    testWidgets(
      'Can triple click + drag to select paragraph by paragraph',
      (WidgetTester tester) async {
        final controller = TextEditingController();
        addTearDown(controller.dispose);

        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
                maxLines: null,
              ),
            ),
          ),
        );

        await tester.enterText(find.byType(CupertinoTextField), testValueA);
        // Skip past scrolling animation.
        await tester.pump();
        await tester.pump(const Duration(milliseconds: 200));
        expect(controller.value.text, testValueA);

        final Offset firstLinePos = textOffsetToPosition(tester, 5);

        // Tap on text field to gain focus, and set selection to 'i|s' on the first line.
        final TestGesture gesture = await tester.startGesture(
          firstLinePos,
          pointer: 7,
          kind: PointerDeviceKind.mouse,
        );
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 5);

        // Here we tap on same position again, to register a double tap. This will select
        // the word at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pump();
        await gesture.up();
        await tester.pump();

        expect(controller.selection.baseOffset, 4);
        expect(controller.selection.extentOffset, 6);

        // Here we tap on the same position again, to register a triple tap. This will select
        // the paragraph at the tapped position.
        await gesture.down(firstLinePos);
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 20);

        // Drag, down after the triple tap, to select paragraph by paragraph.
        // Moving down will extend the selection to the second line.
        await gesture.moveTo(firstLinePos + const Offset(0, 10.0));
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 36);

        // Moving down will extend the selection to the third line.
        await gesture.moveTo(firstLinePos + const Offset(0, 20.0));
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 55);

        // Moving down will extend the selection to the last line.
        await gesture.moveTo(firstLinePos + const Offset(0, 40.0));
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 72);

        // Moving up will extend the selection to the third line.
        await gesture.moveTo(firstLinePos + const Offset(0, 20.0));
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 55);

        // Moving up will extend the selection to the second line.
        await gesture.moveTo(firstLinePos + const Offset(0, 10.0));
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 36);

        // Moving up will extend the selection to the first line.
        await gesture.moveTo(firstLinePos);
        await tester.pumpAndSettle();

        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 20);
      },
      variant: TargetPlatformVariant.all(excluding: <TargetPlatform>{TargetPlatform.linux}),
    );

    testWidgets(
      'Going past triple click retains the selection on Apple platforms',
      (WidgetTester tester) async {
        final controller = TextEditingController(text: testValueA);
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: Center(child: CupertinoTextField(controller: controller, maxLines: null)),
            ),
          ),
        );

        final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

        // First click moves the cursor to the point of the click, not the edge of
        // the clicked word.
        final TestGesture gesture = await tester.startGesture(
          textFieldStart + const Offset(200.0, 9.0),
          pointer: 7,
          kind: PointerDeviceKind.mouse,
        );
        await tester.pump();
        await gesture.up();
        await tester.pump(const Duration(milliseconds: 50));
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 12);

        // Second click selects the word.
        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump();
        expect(controller.selection, const TextSelection(baseOffset: 11, extentOffset: 15));

        // Triple click selects the paragraph.
        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 20));

        // Clicking again retains the selection.
        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump(const Duration(milliseconds: 50));
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 20));

        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump();
        // Clicking again retains the selection.
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 20));

        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();
        // Clicking again retains the selection.
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 20));
      },
      variant: const TargetPlatformVariant(<TargetPlatform>{
        TargetPlatform.iOS,
        TargetPlatform.macOS,
      }),
    );

    testWidgets(
      'Tap count resets when going past a triple tap on Android, Fuchsia, and Linux',
      (WidgetTester tester) async {
        final controller = TextEditingController(text: testValueA);
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: Center(child: CupertinoTextField(controller: controller, maxLines: null)),
            ),
          ),
        );

        final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));
        final platformSelectsByLine = defaultTargetPlatform == TargetPlatform.linux;

        // First click moves the cursor to the point of the click, not the edge of
        // the clicked word.
        final TestGesture gesture = await tester.startGesture(
          textFieldStart + const Offset(200.0, 9.0),
          pointer: 7,
          kind: PointerDeviceKind.mouse,
        );
        await tester.pump();
        await gesture.up();
        await tester.pump(const Duration(milliseconds: 50));
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 12);

        // Second click selects the word.
        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump();
        expect(controller.selection, const TextSelection(baseOffset: 11, extentOffset: 15));

        // Triple click selects the paragraph.
        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();
        expect(
          controller.selection,
          TextSelection(baseOffset: 0, extentOffset: platformSelectsByLine ? 19 : 20),
        );

        // Clicking again moves the caret to the tapped position.
        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump(const Duration(milliseconds: 50));
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 12);

        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump();
        // Clicking again selects the word.
        expect(controller.selection, const TextSelection(baseOffset: 11, extentOffset: 15));

        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();
        // Clicking again selects the paragraph.
        expect(
          controller.selection,
          TextSelection(baseOffset: 0, extentOffset: platformSelectsByLine ? 19 : 20),
        );

        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump(const Duration(milliseconds: 50));
        // Clicking again moves the caret to the tapped position.
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 12);

        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump();
        // Clicking again selects the word.
        expect(controller.selection, const TextSelection(baseOffset: 11, extentOffset: 15));

        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();
        // Clicking again selects the paragraph.
        expect(
          controller.selection,
          TextSelection(baseOffset: 0, extentOffset: platformSelectsByLine ? 19 : 20),
        );
      },
      variant: const TargetPlatformVariant(<TargetPlatform>{
        TargetPlatform.android,
        TargetPlatform.fuchsia,
        TargetPlatform.linux,
      }),
    );

    testWidgets(
      'Double click and triple click alternate on Windows',
      (WidgetTester tester) async {
        final controller = TextEditingController(text: testValueA);
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: Center(child: CupertinoTextField(controller: controller, maxLines: null)),
            ),
          ),
        );

        final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

        // First click moves the cursor to the point of the click, not the edge of
        // the clicked word.
        final TestGesture gesture = await tester.startGesture(
          textFieldStart + const Offset(200.0, 9.0),
          pointer: 7,
          kind: PointerDeviceKind.mouse,
        );
        await tester.pump();
        await gesture.up();
        await tester.pump(const Duration(milliseconds: 50));
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 12);

        // Second click selects the word.
        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump();
        expect(controller.selection, const TextSelection(baseOffset: 11, extentOffset: 15));

        // Triple click selects the paragraph.
        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 20));

        // Clicking again selects the word.
        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump(const Duration(milliseconds: 50));
        expect(controller.selection, const TextSelection(baseOffset: 11, extentOffset: 15));

        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump();
        // Clicking again selects the paragraph.
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 20));

        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();
        // Clicking again selects the word.
        expect(controller.selection, const TextSelection(baseOffset: 11, extentOffset: 15));

        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump(const Duration(milliseconds: 50));
        // Clicking again selects the paragraph.
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 20));

        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pump();
        // Clicking again selects the word.
        expect(controller.selection, const TextSelection(baseOffset: 11, extentOffset: 15));

        await gesture.down(textFieldStart + const Offset(200.0, 9.0));
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();
        // Clicking again selects the paragraph.
        expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 20));
      },
      variant: TargetPlatformVariant.only(TargetPlatform.windows),
    );
  });

  testWidgets('force press selects word', (WidgetTester tester) async {
    final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    final Offset textFieldStart = tester.getTopLeft(find.byType(CupertinoTextField));

    final int pointerValue = tester.nextPointer;
    final TestGesture gesture = await tester.createGesture();
    await gesture.downWithCustomEvent(
      textFieldStart + const Offset(150.0, 5.0),
      PointerDownEvent(
        pointer: pointerValue,
        position: textFieldStart + const Offset(150.0, 5.0),
        pressure: 3.0,
        pressureMax: 6.0,
        pressureMin: 0.0,
      ),
    );
    // We expect the force press to select a word at the given location.
    expect(controller.selection, const TextSelection(baseOffset: 8, extentOffset: 12));

    await gesture.up();
    await tester.pumpAndSettle();
    // Shows toolbar.
    expectCupertinoToolbarForPartialSelection();
  });

  testWidgets(
    'force press on unsupported devices falls back to tap',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      // On iOS/iPadOS, during a tap we select the edge of the word closest to the tap.
      // On macOS, we select the precise position of the tap.
      final isTargetPlatformIOS = defaultTargetPlatform == TargetPlatform.iOS;
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final Offset pPos = textOffsetToPosition(tester, 9); // Index of 'P|eel'

      final int pointerValue = tester.nextPointer;
      final TestGesture gesture = await tester.createGesture();
      await gesture.downWithCustomEvent(
        pPos,
        PointerDownEvent(
          pointer: pointerValue,
          position: pPos,
          // iPhone 6 and below report 0 across the board.
          pressure: 0,
          pressureMax: 0,
          pressureMin: 0,
        ),
      );
      await gesture.up();
      // Fall back to a single tap which selects the edge of the word on iOS, and
      // a precise position on macOS.
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, isTargetPlatformIOS ? 12 : 9);

      await tester.pump();
      // Falling back to a single tap doesn't trigger a toolbar.
      expect(find.byType(CupertinoButton), findsNothing);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'Cannot drag one handle past the other on non-Apple platform',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'abc def ghi');
      addTearDown(controller.dispose);
      // On iOS/iPadOS, during a tap we select the edge of the word closest to the tap.
      // On macOS, we select the precise position of the tap.
      final isTargetPlatformIOS = defaultTargetPlatform == TargetPlatform.iOS;
      // Provide a [TextSelectionControls] that builds selection handles.
      final TextSelectionControls selectionControls = CupertinoTextSelectionHandleControls();

      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
              selectionControls: selectionControls,
              style: const TextStyle(fontSize: 10.0),
            ),
          ),
        ),
      );

      // Double tap on 'e' to select 'def'.
      final Offset ePos = textOffsetToPosition(tester, 5);
      await tester.tapAt(ePos, pointer: 7);
      await tester.pump(const Duration(milliseconds: 50));
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, isTargetPlatformIOS ? 7 : 5);
      await tester.tapAt(ePos, pointer: 7);
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 7);

      final RenderEditable renderEditable = findRenderEditable(tester);
      final List<TextSelectionPoint> endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      expect(endpoints.length, 2);

      // On Mac, the toolbar blocks the drag on the right handle, so hide it.
      final EditableTextState editableTextState = tester.state(find.byType(EditableText));
      editableTextState.hideToolbar(false);
      await tester.pumpAndSettle();

      // Drag the right handle until there's only 1 char selected.
      // We use a small offset because the endpoint is on the very corner
      // of the handle.
      final Offset handlePos = endpoints[1].point;
      Offset newHandlePos = textOffsetToPosition(tester, 5); // Position of 'e'.
      final TestGesture gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 5);

      newHandlePos = textOffsetToPosition(tester, 2); // Position of 'c'.
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      expect(controller.selection.baseOffset, 4);
      // The selection doesn't move beyond the left handle. There's always at
      // least 1 char selected.
      expect(controller.selection.extentOffset, 5);
    },
    variant: TargetPlatformVariant.all(
      excluding: <TargetPlatform>{TargetPlatform.iOS, TargetPlatform.macOS},
    ),
  );

  testWidgets(
    'Can drag one handle past the other on iOS',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'abc def ghi');
      addTearDown(controller.dispose);
      // On iOS/iPadOS, during a tap we select the edge of the word closest to the tap.
      // On macOS, we select the precise position of the tap.
      final isTargetPlatformIOS = defaultTargetPlatform == TargetPlatform.iOS;
      // Provide a [TextSelectionControls] that builds selection handles.
      final TextSelectionControls selectionControls = CupertinoTextSelectionHandleControls();

      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
              selectionControls: selectionControls,
              style: const TextStyle(fontSize: 10.0),
            ),
          ),
        ),
      );

      // Double tap on 'e' to select 'def'.
      final Offset ePos = textOffsetToPosition(tester, 5);
      await tester.tapAt(ePos, pointer: 7);
      await tester.pump(const Duration(milliseconds: 50));
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, isTargetPlatformIOS ? 7 : 5);
      await tester.tapAt(ePos, pointer: 7);
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 7);

      final RenderEditable renderEditable = findRenderEditable(tester);
      final List<TextSelectionPoint> endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      expect(endpoints.length, 2);

      // On Mac, the toolbar blocks the drag on the right handle, so hide it.
      final EditableTextState editableTextState = tester.state(find.byType(EditableText));
      editableTextState.hideToolbar(false);
      await tester.pumpAndSettle();

      // Drag the right handle until there's only 1 char selected.
      // We use a small offset because the endpoint is on the very corner
      // of the handle.
      final Offset handlePos = endpoints[1].point;
      Offset newHandlePos = textOffsetToPosition(tester, 5); // Position of 'e'.
      final TestGesture gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 5);

      newHandlePos = textOffsetToPosition(tester, 2); // Position of 'c'.
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      // The selection inverts moving beyond the left handle.
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 2);
    },
    variant: TargetPlatformVariant.only(TargetPlatform.iOS),
  );

  testWidgets(
    'assertion error is not thrown when attempting to drag both selection handles',
    (WidgetTester tester) async {
      // Regression test for https://github.com/flutter/flutter/issues/168578.
      final controller = TextEditingController(text: 'abc def ghi');
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
              style: const TextStyle(fontSize: 10.0),
            ),
          ),
        ),
      );

      // Double tap on 'e' to select 'def'.
      final Offset ePos = textOffsetToPosition(tester, 5);
      await tester.tapAt(ePos, pointer: 7);
      await tester.pump(const Duration(milliseconds: 50));
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, 7);
      await tester.tapAt(ePos, pointer: 7);
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 7);

      final RenderEditable renderEditable = findRenderEditable(tester);
      final List<TextSelectionPoint> endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      expect(endpoints.length, 2);

      // Drag the end handle to 'g'.
      final Offset endHandlePos = endpoints[1].point;
      Offset newHandlePos = textOffsetToPosition(tester, 9); // Position of 'g'.
      final TestGesture endHandleGesture = await tester.startGesture(endHandlePos, pointer: 7);
      await tester.pump();
      await endHandleGesture.moveTo(newHandlePos);
      await tester.pump();
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 9);

      // Attempt to drag the start handle to the start of the text.
      final Offset startHandlePos = endpoints[0].point;
      newHandlePos = textOffsetToPosition(tester, 0);
      final TestGesture startHandleGesture = await tester.startGesture(startHandlePos, pointer: 8);
      await tester.pump();
      await startHandleGesture.moveTo(newHandlePos);
      await tester.pump();
      await startHandleGesture.up();
      await tester.pump();

      // Drag the end handle to the end of the text after releasing the start handle.
      newHandlePos = textOffsetToPosition(tester, 11); // Position of 'i'.
      await tester.pump();
      await endHandleGesture.moveTo(newHandlePos);
      await tester.pump();
      await endHandleGesture.up();
      await tester.pump();

      expect(tester.takeException(), isNull);
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 11);
    },
    variant: TargetPlatformVariant.only(TargetPlatform.iOS),
  );

  testWidgets(
    'Can only drag one handle at a time on iOS',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'abc def ghi');
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
              style: const TextStyle(fontSize: 10.0),
            ),
          ),
        ),
      );

      // Double tap on 'e' to select 'def'.
      final Offset ePos = textOffsetToPosition(tester, 5);
      await tester.tapAt(ePos, pointer: 7);
      await tester.pump(const Duration(milliseconds: 50));
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, 7);
      await tester.tapAt(ePos, pointer: 7);
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 7);

      final RenderEditable renderEditable = findRenderEditable(tester);
      final List<TextSelectionPoint> endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      expect(endpoints.length, 2);

      // Drag the end handle to the end of the text.
      final Offset endHandlePos = endpoints[1].point;
      Offset newHandlePos = textOffsetToPosition(tester, 11); // Position of 'i'.
      final TestGesture endHandleGesture = await tester.startGesture(endHandlePos, pointer: 7);
      await tester.pump();
      await endHandleGesture.moveTo(newHandlePos);
      await tester.pump();
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 11);

      // Attempt to drag the start handle to the start of the text.
      final Offset startHandlePos = endpoints[0].point;
      newHandlePos = textOffsetToPosition(tester, 0);
      final TestGesture startHandleGesture = await tester.startGesture(startHandlePos, pointer: 8);
      await tester.pump();
      await startHandleGesture.moveTo(newHandlePos);
      await tester.pump();
      await startHandleGesture.up();
      await endHandleGesture.up();
      await tester.pump();

      // The start handle does not cause the selection to change.
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 11);
    },
    variant: TargetPlatformVariant.only(TargetPlatform.iOS),
  );

  testWidgets(
    'Can only drag one selection handle at a time on Android web',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'abc def ghi');
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
              style: const TextStyle(fontSize: 10.0),
            ),
          ),
        ),
      );

      // Double tap on 'e' to select 'def'.
      final Offset ePos = textOffsetToPosition(tester, 5);
      await tester.tapAt(ePos, pointer: 7);
      await tester.pump(const Duration(milliseconds: 50));
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, 5);
      await tester.tapAt(ePos, pointer: 7);
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 7);

      final RenderEditable renderEditable = findRenderEditable(tester);
      final List<TextSelectionPoint> endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      expect(endpoints.length, 2);

      // Drag the end handle to the end of the text.
      final Offset endHandlePos = endpoints[1].point;
      Offset newHandlePos = textOffsetToPosition(tester, 11); // Position of 'i'.
      final TestGesture endHandleGesture = await tester.startGesture(endHandlePos, pointer: 7);
      await tester.pump();
      await endHandleGesture.moveTo(newHandlePos);
      await tester.pump();
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 11);

      // Attempt to drag the start handle to the start of the text.
      final Offset startHandlePos = endpoints[0].point;
      newHandlePos = textOffsetToPosition(tester, 0);
      final TestGesture startHandleGesture = await tester.startGesture(startHandlePos, pointer: 8);
      await tester.pump();
      await startHandleGesture.moveTo(newHandlePos);
      await tester.pump();
      await startHandleGesture.up();
      await endHandleGesture.up();
      await tester.pump();

      // Moving the start handle does not change the selection.
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 11);
    },
    skip: !kIsWeb, // [intended] on web only one selection handle can be dragged at a time.
    variant: TargetPlatformVariant.only(TargetPlatform.android),
  );

  testWidgets(
    'Can drag both selection handles at a time on Android',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'abc def ghi');
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
              style: const TextStyle(fontSize: 10.0),
            ),
          ),
        ),
      );

      // Double tap on 'e' to select 'def'.
      final Offset ePos = textOffsetToPosition(tester, 5);
      await tester.tapAt(ePos, pointer: 7);
      await tester.pump(const Duration(milliseconds: 50));
      expect(controller.selection.isCollapsed, isTrue);
      expect(controller.selection.baseOffset, 5);
      await tester.tapAt(ePos, pointer: 7);
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 7);

      final RenderEditable renderEditable = findRenderEditable(tester);
      final List<TextSelectionPoint> endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      expect(endpoints.length, 2);

      // Drag the end handle to the end of the text.
      final Offset endHandlePos = endpoints[1].point;
      Offset newHandlePos = textOffsetToPosition(tester, 11); // Position of 'i'.
      final TestGesture endHandleGesture = await tester.startGesture(endHandlePos, pointer: 7);
      await tester.pump();
      await endHandleGesture.moveTo(newHandlePos);
      await tester.pump();
      expect(controller.selection.baseOffset, 4);
      expect(controller.selection.extentOffset, 11);

      // Attempt to drag the start handle to the start of the text.
      final Offset startHandlePos = endpoints[0].point;
      newHandlePos = textOffsetToPosition(tester, 0);
      final TestGesture startHandleGesture = await tester.startGesture(startHandlePos, pointer: 8);
      await tester.pump();
      await startHandleGesture.moveTo(newHandlePos);
      await tester.pump();
      await startHandleGesture.up();
      await endHandleGesture.up();
      await tester.pump();

      // Moving the start handle changes the selection.
      expect(controller.selection.baseOffset, 0);
      expect(controller.selection.extentOffset, 11);
    },
    skip: kIsWeb, // [intended] on web only one selection handle can be dragged at a time.
    variant: TargetPlatformVariant.only(TargetPlatform.android),
  );

  testWidgets(
    'Dragging between multiple lines keeps the contact point at the same place on the handle on Android',
    (WidgetTester tester) async {
      final controller = TextEditingController(
        // 11 first line, 19 second line, 17 third line = length 49
        text: 'a big house\njumped over a mouse\nOne more line yay',
      );
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
              maxLines: 3,
              minLines: 3,
            ),
          ),
        ),
      );

      // Double tap to select 'over'.
      final Offset pos = textOffsetToPosition(tester, controller.text.indexOf('v'));
      // The first tap.
      TestGesture gesture = await tester.startGesture(pos, pointer: 7);
      await tester.pump();
      await gesture.up();
      await tester.pump();
      await tester.pump(
        const Duration(milliseconds: 200),
      ); // skip past the frame where the opacity is zero

      // The second tap.
      await gesture.down(pos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      final TextSelection selection = controller.selection;
      expect(controller.selection, const TextSelection(baseOffset: 19, extentOffset: 23));

      final RenderEditable renderEditable = findRenderEditable(tester);
      List<TextSelectionPoint> endpoints = globalize(
        renderEditable.getEndpointsForSelection(selection),
        renderEditable,
      );
      expect(endpoints.length, 2);

      // Drag the right handle 4 letters to the right.
      // The adjustment moves the tap from the text position to the handle.
      const endHandleAdjustment = Offset(1.0, 6.0);
      Offset handlePos = endpoints[1].point + endHandleAdjustment;
      Offset newHandlePos = textOffsetToPosition(tester, 27) + endHandleAdjustment;
      await tester.pump();
      gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      expect(controller.selection, const TextSelection(baseOffset: 19, extentOffset: 27));

      // Drag the right handle 1 line down.
      endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      handlePos = endpoints[1].point + endHandleAdjustment;
      final toNextLine = Offset(0.0, findRenderEditable(tester).preferredLineHeight + 3.0);
      newHandlePos = handlePos + toNextLine;
      gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      expect(controller.selection, const TextSelection(baseOffset: 19, extentOffset: 47));

      // Drag the right handle back up 1 line.
      endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      handlePos = endpoints[1].point + endHandleAdjustment;
      newHandlePos = handlePos - toNextLine;
      gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      expect(controller.selection, const TextSelection(baseOffset: 19, extentOffset: 27));

      // Drag the left handle 4 letters to the left.
      // The adjustment moves the tap from the text position to the handle.
      const startHandleAdjustment = Offset(-1.0, 6.0);
      endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      handlePos = endpoints[0].point + startHandleAdjustment;
      newHandlePos = textOffsetToPosition(tester, 15) + startHandleAdjustment;
      gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      expect(controller.selection, const TextSelection(baseOffset: 15, extentOffset: 27));

      // Drag the left handle 1 line up.
      endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      handlePos = endpoints[0].point + startHandleAdjustment;
      // Move handle a sufficient global distance so it can be considered a drag
      // by the selection handle's [PanGestureRecognizer].
      newHandlePos = handlePos - (toNextLine * 2);
      gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      expect(controller.selection, const TextSelection(baseOffset: 3, extentOffset: 27));

      // Drag the left handle 1 line back down.
      endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      handlePos = endpoints[0].point + startHandleAdjustment;
      newHandlePos = handlePos + toNextLine;
      gesture = await tester.startGesture(handlePos, pointer: 7);
      // Move handle up a small amount before dragging it down so the total global
      // distance travelled can be accepted by the selection handle's [PanGestureRecognizer] as a drag.
      // This way it can declare itself the winner before the [TapAndDragGestureRecognizer] that
      // is on the selection overlay.
      await tester.pump();
      await gesture.moveTo(handlePos - toNextLine);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      expect(controller.selection, const TextSelection(baseOffset: 15, extentOffset: 27));
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.android}),
  );

  testWidgets(
    'Dragging between multiple lines keeps the contact point at the same place on the handle on iOS',
    (WidgetTester tester) async {
      final controller = TextEditingController(
        // 11 first line, 19 second line, 17 third line = length 49
        text: 'a big house\njumped over a mouse\nOne more line yay',
      );
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
              maxLines: 3,
              minLines: 3,
            ),
          ),
        ),
      );

      // Double tap to select 'over'.
      final Offset pos = textOffsetToPosition(tester, controller.text.indexOf('v'));
      // The first tap.
      TestGesture gesture = await tester.startGesture(pos, pointer: 7);
      await tester.pump();
      await gesture.up();
      await tester.pump();
      await tester.pump(
        const Duration(milliseconds: 200),
      ); // skip past the frame where the opacity is zero

      // The second tap.
      await gesture.down(pos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      final TextSelection selection = controller.selection;
      expect(controller.selection, const TextSelection(baseOffset: 19, extentOffset: 23));

      final RenderEditable renderEditable = findRenderEditable(tester);
      List<TextSelectionPoint> endpoints = globalize(
        renderEditable.getEndpointsForSelection(selection),
        renderEditable,
      );
      expect(endpoints.length, 2);

      // Drag the right handle 4 letters to the right.
      // The adjustment moves the tap from the text position to the handle.
      const endHandleAdjustment = Offset(1.0, 6.0);
      Offset handlePos = endpoints[1].point + endHandleAdjustment;
      Offset newHandlePos = textOffsetToPosition(tester, 27) + endHandleAdjustment;
      await tester.pump();
      gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      expect(controller.selection, const TextSelection(baseOffset: 19, extentOffset: 27));

      // Drag the right handle 1 line down.
      endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      handlePos = endpoints[1].point + endHandleAdjustment;
      final double lineHeight = findRenderEditable(tester).preferredLineHeight;
      final toNextLine = Offset(0.0, lineHeight + 3.0);
      newHandlePos = handlePos + toNextLine;
      gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      expect(controller.selection, const TextSelection(baseOffset: 19, extentOffset: 47));

      // Drag the right handle back up 1 line.
      endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      handlePos = endpoints[1].point + endHandleAdjustment;
      newHandlePos = handlePos - toNextLine;
      gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      expect(controller.selection, const TextSelection(baseOffset: 19, extentOffset: 27));

      // Drag the left handle 4 letters to the left.
      // The adjustment moves the tap from the text position to the handle.
      final startHandleAdjustment = Offset(-1.0, -lineHeight + 6.0);
      endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      handlePos = endpoints[0].point + startHandleAdjustment;
      newHandlePos = textOffsetToPosition(tester, 15) + startHandleAdjustment;
      gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      // On Apple platforms, dragging the base handle makes it the extent.
      expect(controller.selection, const TextSelection(baseOffset: 27, extentOffset: 15));

      // Drag the left handle 1 line up.
      endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      handlePos = endpoints[0].point + startHandleAdjustment;
      newHandlePos = handlePos - toNextLine;
      gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      expect(controller.selection, const TextSelection(baseOffset: 27, extentOffset: 3));

      // Drag the left handle 1 line back down.
      endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      handlePos = endpoints[0].point + startHandleAdjustment;
      newHandlePos = handlePos + toNextLine;
      gesture = await tester.startGesture(handlePos, pointer: 7);
      await tester.pump();
      await gesture.moveTo(newHandlePos);
      await tester.pump();
      await gesture.up();
      await tester.pump();

      expect(controller.selection, const TextSelection(baseOffset: 27, extentOffset: 15));
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
  );

  testWidgets('Selection updates on tap down (Desktop platforms)', (WidgetTester tester) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    const testValue = 'abc def ghi';
    await tester.enterText(find.byType(CupertinoTextField), testValue);
    // Skip past scrolling animation.
    await tester.pump();
    await tester.pump(const Duration(milliseconds: 200));

    final Offset ePos = textOffsetToPosition(tester, 5);
    final Offset gPos = textOffsetToPosition(tester, 8);

    final TestGesture gesture = await tester.startGesture(ePos, kind: PointerDeviceKind.mouse);
    await tester.pumpAndSettle();
    expect(controller.selection.baseOffset, 5);
    expect(controller.selection.extentOffset, 5);

    await gesture.up();
    await tester.pumpAndSettle(kDoubleTapTimeout);

    await gesture.down(gPos);
    await tester.pumpAndSettle();
    expect(controller.selection.baseOffset, 8);
    expect(controller.selection.extentOffset, 8);

    // This should do nothing. The selection is set on tap down on desktop platforms.
    await gesture.up();
    expect(controller.selection.baseOffset, 8);
    expect(controller.selection.extentOffset, 8);
  }, variant: TargetPlatformVariant.desktop());

  testWidgets('Selection updates on tap up (Mobile platforms)', (WidgetTester tester) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);
    final isTargetPlatformApple = defaultTargetPlatform == TargetPlatform.iOS;

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    const testValue = 'abc def ghi';
    await tester.enterText(find.byType(CupertinoTextField), testValue);
    // Skip past scrolling animation.
    await tester.pump();
    await tester.pump(const Duration(milliseconds: 200));

    final Offset ePos = textOffsetToPosition(tester, 5);
    final Offset gPos = textOffsetToPosition(tester, 8);

    final TestGesture gesture = await tester.startGesture(ePos, kind: PointerDeviceKind.mouse);
    await gesture.up();
    await tester.pumpAndSettle(kDoubleTapTimeout);

    await gesture.down(gPos);
    await tester.pumpAndSettle();
    expect(controller.selection.baseOffset, 5);
    expect(controller.selection.extentOffset, 5);

    await gesture.up();
    await tester.pumpAndSettle(kDoubleTapTimeout);
    expect(controller.selection.baseOffset, 8);
    expect(controller.selection.extentOffset, 8);

    final TestGesture touchGesture = await tester.startGesture(ePos);
    await touchGesture.up();
    await tester.pumpAndSettle(kDoubleTapTimeout);
    // On iOS, a tap to select, selects the word edge instead of the exact tap position.
    expect(controller.selection.baseOffset, isTargetPlatformApple ? 7 : 5);
    expect(controller.selection.extentOffset, isTargetPlatformApple ? 7 : 5);

    // Selection should stay the same since it is set on tap up for mobile platforms.
    await touchGesture.down(gPos);
    await tester.pump();
    expect(controller.selection.baseOffset, isTargetPlatformApple ? 7 : 5);
    expect(controller.selection.extentOffset, isTargetPlatformApple ? 7 : 5);

    await touchGesture.up();
    await tester.pumpAndSettle();
    expect(controller.selection.baseOffset, 8);
    expect(controller.selection.extentOffset, 8);
  }, variant: TargetPlatformVariant.mobile());

  testWidgets('Can select text by dragging with a mouse', (WidgetTester tester) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            dragStartBehavior: DragStartBehavior.down,
            controller: controller,
            style: const TextStyle(fontSize: 10.0),
          ),
        ),
      ),
    );

    const testValue = 'abc def ghi';
    await tester.enterText(find.byType(CupertinoTextField), testValue);
    // Skip past scrolling animation.
    await tester.pump();
    await tester.pump(const Duration(milliseconds: 200));

    final Offset ePos = textOffsetToPosition(tester, testValue.indexOf('e'));
    final Offset gPos = textOffsetToPosition(tester, testValue.indexOf('g'));

    final TestGesture gesture = await tester.startGesture(ePos, kind: PointerDeviceKind.mouse);
    await tester.pump();
    await gesture.moveTo(gPos);
    await tester.pump();
    await gesture.up();
    await tester.pumpAndSettle();

    expect(controller.selection.baseOffset, testValue.indexOf('e'));
    expect(controller.selection.extentOffset, testValue.indexOf('g'));
  });

  testWidgets(
    'Cursor should not move on a quick touch drag when touch does not begin on previous selection (iOS)',
    (WidgetTester tester) async {
      final controller = TextEditingController();
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: CupertinoPageScaffold(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
            ),
          ),
        ),
      );

      const testValue = 'abc def ghi';
      await tester.enterText(find.byType(CupertinoTextField), testValue);
      await tester.pumpAndSettle(const Duration(milliseconds: 200));

      final Offset aPos = textOffsetToPosition(tester, testValue.indexOf('a'));
      final Offset iPos = textOffsetToPosition(tester, testValue.indexOf('i'));

      // Tap on text field to gain focus, and set selection to '|a'. On iOS
      // the selection is set to the word edge closest to the tap position.
      // We await for [kDoubleTapTimeout] after the up event, so our next down
      // event does not register as a double tap.
      final TestGesture gesture = await tester.startGesture(aPos);
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle(kDoubleTapTimeout);

      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 0);

      // The position we tap during a drag start is not on the collapsed selection,
      // so the cursor should not move.
      await gesture.down(textOffsetToPosition(tester, 7));
      await gesture.moveTo(iPos);
      await tester.pumpAndSettle();

      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 0);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
  );

  testWidgets(
    'Can move cursor when dragging, when tap is on collapsed selection (iOS)',
    (WidgetTester tester) async {
      final controller = TextEditingController();
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: CupertinoPageScaffold(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
            ),
          ),
        ),
      );

      const testValue = 'abc def ghi';
      await tester.enterText(find.byType(CupertinoTextField), testValue);
      await tester.pumpAndSettle(const Duration(milliseconds: 200));

      final Offset ePos = textOffsetToPosition(tester, testValue.indexOf('e'));
      final Offset iPos = textOffsetToPosition(tester, testValue.indexOf('i'));

      // Tap on text field to gain focus, and set selection to '|g'. On iOS
      // the selection is set to the word edge closest to the tap position.
      // We await for [kDoubleTapTimeout] after the up event, so our next down
      // event does not register as a double tap.
      final TestGesture gesture = await tester.startGesture(ePos);
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle(kDoubleTapTimeout);

      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 7);

      // If the position we tap during a drag start is on the collapsed selection, then
      // we can move the cursor with a drag.
      // Here we tap on '|g', where our selection was previously, and move to '|i'.
      await gesture.down(textOffsetToPosition(tester, 7));
      await tester.pump();
      await gesture.moveTo(iPos);
      await tester.pumpAndSettle();

      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, testValue.indexOf('i'));

      // End gesture and skip the magnifier hide animation, so it can release
      // resources.
      await gesture.up();
      await tester.pump();
      await tester.pump(const Duration(milliseconds: 150));
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
  );

  testWidgets(
    'Can move cursor when dragging, when tap is on collapsed selection (iOS) - multiline',
    (WidgetTester tester) async {
      final controller = TextEditingController();
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: CupertinoPageScaffold(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
              maxLines: null,
            ),
          ),
        ),
      );

      const testValue = 'abc\ndef\nghi';
      await tester.enterText(find.byType(CupertinoTextField), testValue);
      await tester.pumpAndSettle(const Duration(milliseconds: 200));

      final Offset aPos = textOffsetToPosition(tester, testValue.indexOf('a'));
      final Offset iPos = textOffsetToPosition(tester, testValue.indexOf('i'));

      // Tap on text field to gain focus, and set selection to '|a'. On iOS
      // the selection is set to the word edge closest to the tap position.
      // We await for kDoubleTapTimeout after the up event, so our next down event
      // does not register as a double tap.
      final TestGesture gesture = await tester.startGesture(aPos);
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle(kDoubleTapTimeout);

      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 0);

      // If the position we tap during a drag start is on the collapsed selection, then
      // we can move the cursor with a drag.
      // Here we tap on '|a', where our selection was previously, and move to '|i'.
      await gesture.down(aPos);
      await tester.pump();
      await gesture.moveTo(iPos);
      await tester.pumpAndSettle();

      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, testValue.indexOf('i'));

      // End gesture and skip the magnifier hide animation, so it can release
      // resources.
      await gesture.up();
      await tester.pump();
      await tester.pump(const Duration(milliseconds: 150));
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
  );

  testWidgets(
    'Can move cursor when dragging, when tap is on collapsed selection (iOS) - ListView',
    (WidgetTester tester) async {
      // This is a regression test for
      // https://github.com/flutter/flutter/issues/122519
      final controller = TextEditingController();
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: CupertinoPageScaffold(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
              maxLines: null,
            ),
          ),
        ),
      );

      const testValue = 'abc\ndef\nghi';
      await tester.enterText(find.byType(CupertinoTextField), testValue);
      await tester.pumpAndSettle(const Duration(milliseconds: 200));

      final Offset aPos = textOffsetToPosition(tester, testValue.indexOf('a'));
      final Offset gPos = textOffsetToPosition(tester, testValue.indexOf('g'));
      final Offset iPos = textOffsetToPosition(tester, testValue.indexOf('i'));

      // Tap on text field to gain focus, and set selection to '|a'. On iOS
      // the selection is set to the word edge closest to the tap position.
      // We await for kDoubleTapTimeout after the up event, so our next down event
      // does not register as a double tap.
      final TestGesture gesture = await tester.startGesture(aPos);
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle(kDoubleTapTimeout);

      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, 0);

      // If the position we tap during a drag start is on the collapsed selection, then
      // we can move the cursor with a drag.
      // Here we tap on '|a', where our selection was previously, and attempt move
      // to '|g'.
      await gesture.down(aPos);
      await tester.pump();
      await gesture.moveTo(gPos);
      await tester.pumpAndSettle();

      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, testValue.indexOf('g'));

      // Release the pointer.
      await gesture.up();
      await tester.pumpAndSettle();

      // If the position we tap during a drag start is on the collapsed selection, then
      // we can move the cursor with a drag.
      // Here we tap on '|g', where our selection was previously, and move to '|i'.
      await gesture.down(gPos);
      await tester.pump();
      await gesture.moveTo(iPos);
      await tester.pumpAndSettle();

      await gesture.up();
      await tester.pumpAndSettle();

      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, testValue.indexOf('i'));
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
  );

  testWidgets(
    'Can move cursor when dragging (Android)',
    (WidgetTester tester) async {
      final controller = TextEditingController();
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: CupertinoPageScaffold(
            child: CupertinoTextField(
              dragStartBehavior: DragStartBehavior.down,
              controller: controller,
            ),
          ),
        ),
      );

      const testValue = 'abc def ghi';
      await tester.enterText(find.byType(CupertinoTextField), testValue);
      await tester.pumpAndSettle(const Duration(milliseconds: 200));

      final Offset ePos = textOffsetToPosition(tester, testValue.indexOf('e'));
      final Offset gPos = textOffsetToPosition(tester, testValue.indexOf('g'));

      // Tap on text field to gain focus, and set selection to '|e'.
      // We await for [kDoubleTapTimeout] after the up event, so our
      // next down event does not register as a double tap.
      final TestGesture gesture = await tester.startGesture(ePos);
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle(kDoubleTapTimeout);

      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, testValue.indexOf('e'));

      // Here we tap on '|d', and move to '|g'.
      await gesture.down(textOffsetToPosition(tester, testValue.indexOf('d')));
      await tester.pump();
      await gesture.moveTo(gPos);
      await tester.pumpAndSettle();

      expect(controller.selection.isCollapsed, true);
      expect(controller.selection.baseOffset, testValue.indexOf('g'));

      // End gesture and skip the magnifier hide animation, so it can release
      // resources.
      await gesture.up();
      await tester.pump();
      await tester.pump(const Duration(milliseconds: 150));
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.android,
      TargetPlatform.fuchsia,
    }),
  );

  testWidgets('Continuous dragging does not cause flickering', (WidgetTester tester) async {
    var selectionChangedCount = 0;
    const testValue = 'abc def ghi';
    final controller = TextEditingController(text: testValue);
    addTearDown(controller.dispose);

    controller.addListener(() {
      selectionChangedCount++;
    });

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            dragStartBehavior: DragStartBehavior.down,
            controller: controller,
            style: const TextStyle(fontSize: 10.0),
          ),
        ),
      ),
    );

    final Offset cPos = textOffsetToPosition(tester, 2); // Index of 'c'.
    final Offset gPos = textOffsetToPosition(tester, 8); // Index of 'g'.
    final Offset hPos = textOffsetToPosition(tester, 9); // Index of 'h'.

    // Drag from 'c' to 'g'.
    final TestGesture gesture = await tester.startGesture(cPos, kind: PointerDeviceKind.mouse);
    await tester.pump();
    await gesture.moveTo(gPos);
    await tester.pumpAndSettle();

    expect(selectionChangedCount, isNonZero);
    selectionChangedCount = 0;
    expect(controller.selection.baseOffset, 2);
    expect(controller.selection.extentOffset, 8);

    // Tiny movement shouldn't cause text selection to change.
    await gesture.moveTo(gPos + const Offset(2.0, 0.0));
    await tester.pumpAndSettle();
    expect(selectionChangedCount, 0);

    // Now a text selection change will occur after a significant movement.
    await gesture.moveTo(hPos);
    await tester.pump();
    await gesture.up();
    await tester.pumpAndSettle();

    expect(selectionChangedCount, 1);
    expect(controller.selection.baseOffset, 2);
    expect(controller.selection.extentOffset, 9);
  });

  testWidgets('Tap does not show handles nor toolbar', (WidgetTester tester) async {
    final controller = TextEditingController(text: 'abc def ghi');
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    // Tap to trigger the text field.
    await tester.tap(find.byType(CupertinoTextField));
    await tester.pump();

    final EditableTextState editableText = tester.state(find.byType(EditableText));
    expect(editableText.selectionOverlay!.handlesAreVisible, isFalse);
    expect(editableText.selectionOverlay!.toolbarIsVisible, isFalse);
  });

  testWidgets('Long press shows toolbar but not handles', (WidgetTester tester) async {
    final controller = TextEditingController(text: 'abc def ghi');
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    // Long press to trigger the text field.
    await tester.longPress(find.byType(CupertinoTextField));
    await tester.pump();
    // A long press in Cupertino should position the cursor without any selection.
    expect(controller.selection.isCollapsed, isTrue);

    final EditableTextState editableText = tester.state(find.byType(EditableText));
    expect(editableText.selectionOverlay!.handlesAreVisible, isFalse);
    expect(
      editableText.selectionOverlay!.toolbarIsVisible,
      isContextMenuProvidedByPlatform ? isFalse : isTrue,
    );
  });

  testWidgets('Double tap shows handles and toolbar if selection is not collapsed', (
    WidgetTester tester,
  ) async {
    final controller = TextEditingController(text: 'abc def ghi');
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    final Offset hPos = textOffsetToPosition(tester, 9); // Position of 'h'.

    // Double tap on 'h' to select 'ghi'.
    await tester.tapAt(hPos);
    await tester.pump(const Duration(milliseconds: 50));
    await tester.tapAt(hPos);
    await tester.pump();

    final EditableTextState editableText = tester.state(find.byType(EditableText));
    expect(editableText.selectionOverlay!.handlesAreVisible, isTrue);
    expect(
      editableText.selectionOverlay!.toolbarIsVisible,
      isContextMenuProvidedByPlatform ? isFalse : isTrue,
    );
  });

  testWidgets('Double tap shows toolbar but not handles if selection is collapsed', (
    WidgetTester tester,
  ) async {
    final controller = TextEditingController(text: 'abc def ghi');
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    final Offset textEndPos = textOffsetToPosition(tester, 11); // Position at the end of text.

    // Double tap to place the cursor at the end.
    await tester.tapAt(textEndPos);
    await tester.pump(const Duration(milliseconds: 50));
    await tester.tapAt(textEndPos);
    await tester.pump();

    final EditableTextState editableText = tester.state(find.byType(EditableText));
    expect(editableText.selectionOverlay!.handlesAreVisible, isFalse);
    expect(
      editableText.selectionOverlay!.toolbarIsVisible,
      isContextMenuProvidedByPlatform ? isFalse : isTrue,
    );
  });

  testWidgets('Mouse long press does not show handles nor toolbar', (WidgetTester tester) async {
    final controller = TextEditingController(text: 'abc def ghi');
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    // Long press to trigger the text field.
    final Offset textFieldPos = tester.getCenter(find.byType(CupertinoTextField));
    final TestGesture gesture = await tester.startGesture(
      textFieldPos,
      kind: PointerDeviceKind.mouse,
    );
    await tester.pump(const Duration(seconds: 2));
    await gesture.up();
    await tester.pump();

    final EditableTextState editableText = tester.state(find.byType(EditableText));
    expect(editableText.selectionOverlay!.toolbarIsVisible, isFalse);
    expect(editableText.selectionOverlay!.handlesAreVisible, isFalse);
  });

  testWidgets('Mouse double tap does not show handles nor toolbar', (WidgetTester tester) async {
    final controller = TextEditingController(text: 'abc def ghi');
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );

    final EditableTextState editableText = tester.state(find.byType(EditableText));

    // Double tap at the end of text.
    final Offset textEndPos = textOffsetToPosition(tester, 11); // Position at the end of text.
    final TestGesture gesture = await tester.startGesture(
      textEndPos,
      kind: PointerDeviceKind.mouse,
    );
    await tester.pump(const Duration(milliseconds: 50));
    await gesture.up();
    await tester.pump();
    await gesture.down(textEndPos);
    await tester.pump();
    await gesture.up();
    await tester.pump();

    expect(editableText.selectionOverlay!.toolbarIsVisible, isFalse);
    expect(editableText.selectionOverlay!.handlesAreVisible, isFalse);

    final Offset hPos = textOffsetToPosition(tester, 9); // Position of 'h'.

    // Double tap on 'h' to select 'ghi'.
    await gesture.down(hPos);
    await tester.pump(const Duration(milliseconds: 50));
    await gesture.up();
    await tester.pump();
    await gesture.down(hPos);
    await tester.pump();
    await gesture.up();
    await tester.pump();

    expect(editableText.selectionOverlay!.handlesAreVisible, isFalse);
    expect(editableText.selectionOverlay!.toolbarIsVisible, isFalse);
  });

  testWidgets('onTap is called upon tap', (WidgetTester tester) async {
    var tapCount = 0;
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(onTap: () => tapCount++)),
      ),
    );

    expect(tapCount, 0);
    await tester.tap(find.byType(CupertinoTextField));
    await tester.pump();
    expect(tapCount, 1);

    // Wait out the double tap interval so the next tap doesn't end up being
    // recognized as a double tap.
    await tester.pump(const Duration(seconds: 1));

    // Double tap count as one single tap.
    await tester.tap(find.byType(CupertinoTextField));
    await tester.pump(const Duration(milliseconds: 100));
    await tester.tap(find.byType(CupertinoTextField));
    await tester.pump();
    expect(tapCount, 2);
  });

  testWidgets('onTap does not work when the text field is disabled', (WidgetTester tester) async {
    var tapCount = 0;
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(enabled: false, onTap: () => tapCount++)),
      ),
    );

    expect(tapCount, 0);
    await tester.tap(find.byType(CupertinoTextField), warnIfMissed: false); // disabled
    await tester.pump();
    expect(tapCount, 0);

    // Wait out the double tap interval so the next tap doesn't end up being
    // recognized as a double tap.
    await tester.pump(const Duration(seconds: 1));

    // Enabling the text field, now it should accept taps.
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(onTap: () => tapCount++)),
      ),
    );

    await tester.tap(find.byType(CupertinoTextField));
    expect(tapCount, 1);

    await tester.pump(const Duration(seconds: 1));

    // Disable it again.
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(enabled: false, onTap: () => tapCount++)),
      ),
    );
    await tester.tap(find.byType(CupertinoTextField), warnIfMissed: false); // disabled
    await tester.pump();
    expect(tapCount, 1);
  });

  testWidgets('Focus test when the text field is disabled', (WidgetTester tester) async {
    final focusNode = FocusNode();
    addTearDown(focusNode.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(focusNode: focusNode)),
      ),
    );

    expect(focusNode.hasFocus, false); // initial status

    // Should accept requestFocus.
    focusNode.requestFocus();
    await tester.pump();
    expect(focusNode.hasFocus, true);

    // Disable the text field, now it should not accept requestFocus.
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(enabled: false, focusNode: focusNode)),
      ),
    );

    // Should not accept requestFocus.
    focusNode.requestFocus();
    await tester.pump();
    expect(focusNode.hasFocus, false);
  });

  testWidgets('text field respects theme', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(
        theme: CupertinoThemeData(brightness: Brightness.dark),
        home: Center(child: CupertinoTextField()),
      ),
    );

    final decoration =
        tester
                .widget<DecoratedBox>(
                  find.descendant(
                    of: find.byType(CupertinoTextField),
                    matching: find.byType(DecoratedBox),
                  ),
                )
                .decoration
            as BoxDecoration;

    expect(decoration.border!.bottom.color.value, 0x33FFFFFF);

    await tester.enterText(find.byType(CupertinoTextField), 'smoked meat');
    await tester.pump();

    expect(
      tester
          .renderObject<RenderEditable>(
            find
                .byElementPredicate((Element element) => element.renderObject is RenderEditable)
                .last,
          )
          .text!
          .style!
          .color,
      isSameColorAs(CupertinoColors.white),
    );
  });

  testWidgets(
    'Check the toolbar appears below the TextField when there is not enough space above the TextField to show it',
    (WidgetTester tester) async {
      // This is a regression test for
      // https://github.com/flutter/flutter/issues/29808
      const testValue = 'abc def ghi';
      final controller = TextEditingController();
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: Container(
            padding: const EdgeInsets.all(30),
            child: CupertinoTextField(controller: controller),
          ),
        ),
      );

      await tester.enterText(find.byType(CupertinoTextField), testValue);
      // Tap the selection handle to bring up the "paste / select all" menu.
      await tester.tapAt(textOffsetToPosition(tester, testValue.indexOf('e')));
      await tester.pump();
      await tester.pump(
        const Duration(milliseconds: 200),
      ); // skip past the frame where the opacity is zero
      RenderEditable renderEditable = findRenderEditable(tester);
      List<TextSelectionPoint> endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      await tester.tapAt(endpoints[0].point + const Offset(1.0, 1.0));
      await tester.pump();
      await tester.pump(
        const Duration(milliseconds: 300),
      ); // skip past the frame where the opacity is zero

      // Verify the selection toolbar position
      Offset toolbarTopLeft = tester.getTopLeft(find.text('Paste'));
      Offset textFieldTopLeft = tester.getTopLeft(find.byType(CupertinoTextField));
      expect(textFieldTopLeft.dy, lessThan(toolbarTopLeft.dy));

      await tester.pumpWidget(
        CupertinoApp(
          home: Container(
            padding: const EdgeInsets.all(150),
            child: CupertinoTextField(controller: controller),
          ),
        ),
      );

      await tester.enterText(find.byType(CupertinoTextField), testValue);
      // Tap the selection handle to bring up the "paste / select all" menu.
      await tester.tapAt(textOffsetToPosition(tester, testValue.indexOf('e')));
      await tester.pump();
      await tester.pump(
        const Duration(milliseconds: 200),
      ); // skip past the frame where the opacity is zero
      renderEditable = findRenderEditable(tester);
      endpoints = globalize(
        renderEditable.getEndpointsForSelection(controller.selection),
        renderEditable,
      );
      await tester.tapAt(endpoints[0].point + const Offset(1.0, 1.0));
      await tester.pump();
      await tester.pump(
        const Duration(milliseconds: 200),
      ); // skip past the frame where the opacity is zero

      // Verify the selection toolbar position
      toolbarTopLeft = tester.getTopLeft(find.text('Paste'));
      textFieldTopLeft = tester.getTopLeft(find.byType(CupertinoTextField));
      expect(toolbarTopLeft.dy, lessThan(textFieldTopLeft.dy));
    },
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  testWidgets('text field respects keyboardAppearance from theme', (WidgetTester tester) async {
    final log = <MethodCall>[];
    tester.binding.defaultBinaryMessenger.setMockMethodCallHandler(SystemChannels.textInput, (
      MethodCall methodCall,
    ) async {
      log.add(methodCall);
      return null;
    });

    await tester.pumpWidget(
      const CupertinoApp(
        theme: CupertinoThemeData(brightness: Brightness.dark),
        home: Center(child: CupertinoTextField()),
      ),
    );

    await tester.showKeyboard(find.byType(EditableText));
    final MethodCall setClient = log.first;
    expect(setClient.method, 'TextInput.setClient');
    expect(
      ((setClient.arguments as List<dynamic>).last as Map<String, dynamic>)['keyboardAppearance'],
      'Brightness.dark',
    );
  });

  testWidgets('text field can override keyboardAppearance from theme', (WidgetTester tester) async {
    final log = <MethodCall>[];
    tester.binding.defaultBinaryMessenger.setMockMethodCallHandler(SystemChannels.textInput, (
      MethodCall methodCall,
    ) async {
      log.add(methodCall);
      return null;
    });

    await tester.pumpWidget(
      const CupertinoApp(
        theme: CupertinoThemeData(brightness: Brightness.dark),
        home: Center(child: CupertinoTextField(keyboardAppearance: Brightness.light)),
      ),
    );

    await tester.showKeyboard(find.byType(EditableText));
    final MethodCall setClient = log.first;
    expect(setClient.method, 'TextInput.setClient');
    expect(
      ((setClient.arguments as List<dynamic>).last as Map<String, dynamic>)['keyboardAppearance'],
      'Brightness.light',
    );
  });

  testWidgets('cursorColor respects theme', (WidgetTester tester) async {
    await tester.pumpWidget(const CupertinoApp(home: CupertinoTextField()));

    final Finder textFinder = find.byType(CupertinoTextField);
    await tester.tap(textFinder);
    await tester.pump();

    final EditableTextState editableTextState = tester.firstState(find.byType(EditableText));
    final RenderEditable renderEditable = editableTextState.renderEditable;

    expect(renderEditable.cursorColor, CupertinoColors.activeBlue.color);

    await tester.pumpWidget(
      const CupertinoApp(
        home: CupertinoTextField(),
        theme: CupertinoThemeData(brightness: Brightness.dark),
      ),
    );

    await tester.pump();
    expect(renderEditable.cursorColor, CupertinoColors.activeBlue.darkColor);

    await tester.pumpWidget(
      const CupertinoApp(
        home: CupertinoTextField(),
        theme: CupertinoThemeData(primaryColor: Color(0xFFF44336)),
      ),
    );

    await tester.pump();
    expect(renderEditable.cursorColor, const Color(0xFFF44336));
  });

  testWidgets('cursor can override color from theme', (WidgetTester tester) async {
    const cursorColor = CupertinoDynamicColor.withBrightness(
      color: Color(0x12345678),
      darkColor: Color(0x87654321),
    );

    await tester.pumpWidget(
      const CupertinoApp(
        theme: CupertinoThemeData(),
        home: Center(child: CupertinoTextField(cursorColor: cursorColor)),
      ),
    );

    EditableText editableText = tester.firstWidget(find.byType(EditableText));
    expect(editableText.cursorColor.value, 0x12345678);

    await tester.pumpWidget(
      const CupertinoApp(
        theme: CupertinoThemeData(brightness: Brightness.dark),
        home: Center(child: CupertinoTextField(cursorColor: cursorColor)),
      ),
    );

    editableText = tester.firstWidget(find.byType(EditableText));
    expect(editableText.cursorColor.value, 0x87654321);
  });

  testWidgets(
    'shows selection handles',
    (WidgetTester tester) async {
      const testText = 'lorem ipsum';
      final controller = TextEditingController(text: testText);
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          theme: const CupertinoThemeData(),
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      final RenderEditable renderEditable = tester
          .state<EditableTextState>(find.byType(EditableText))
          .renderEditable;

      await tester.tapAt(textOffsetToPosition(tester, 5));
      renderEditable.selectWord(cause: SelectionChangedCause.longPress);
      await tester.pumpAndSettle();

      final List<Widget> transitions = find
          .byType(FadeTransition)
          .evaluate()
          .map((Element e) => e.widget)
          .toList();
      expect(transitions.length, 2);
      final left = transitions[0] as FadeTransition;
      final right = transitions[1] as FadeTransition;

      expect(left.opacity.value, equals(1.0));
      expect(right.opacity.value, equals(1.0));
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'when CupertinoTextField would be blocked by keyboard, it is shown with enough space for the selection handle',
    (WidgetTester tester) async {
      final scrollController = ScrollController();
      addTearDown(scrollController.dispose);
      final controller = TextEditingController();
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          theme: const CupertinoThemeData(),
          home: Center(
            child: ListView(
              controller: scrollController,
              children: <Widget>[
                Container(height: 583), // Push field almost off screen.
                CupertinoTextField(controller: controller),
                Container(height: 1000),
              ],
            ),
          ),
        ),
      );

      // Tap the TextField to put the cursor into it and bring it into view.
      expect(scrollController.offset, 0.0);
      await tester.tap(find.byType(CupertinoTextField));
      await tester.pumpAndSettle();

      // The ListView has scrolled to keep the TextField and cursor handle
      // visible.
      expect(scrollController.offset, 27.0);
    },
  );

  testWidgets('disabled state golden', (WidgetTester tester) async {
    final controller = TextEditingController(text: 'lorem');
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: DecoratedBox(
          decoration: const BoxDecoration(color: Color(0xFFFFFFFF)),
          child: Center(
            child: SizedBox(
              width: 200,
              height: 200,
              child: RepaintBoundary(
                key: const ValueKey<int>(1),
                child: CupertinoTextField(controller: controller, enabled: false),
              ),
            ),
          ),
        ),
      ),
    );

    await expectLater(
      find.byKey(const ValueKey<int>(1)),
      matchesGoldenFile('text_field_test.disabled.png'),
    );
  });

  testWidgets('Can drag the left handle while the right handle remains off-screen', (
    WidgetTester tester,
  ) async {
    // Text is longer than textfield width.
    const testValue = 'aaaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbb';
    final controller = TextEditingController(text: testValue);
    addTearDown(controller.dispose);
    final scrollController = ScrollController();
    addTearDown(scrollController.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            dragStartBehavior: DragStartBehavior.down,
            controller: controller,
            scrollController: scrollController,
          ),
        ),
      ),
    );

    // Double tap 'b' to show handles.
    final Offset bPos = textOffsetToPosition(tester, testValue.indexOf('b'));
    await tester.tapAt(bPos);
    await tester.pump(kDoubleTapTimeout ~/ 2);
    await tester.tapAt(bPos);
    await tester.pumpAndSettle();

    final TextSelection selection = controller.selection;
    expect(selection.baseOffset, 28);
    expect(selection.extentOffset, testValue.length);

    // Move to the left edge.
    scrollController.jumpTo(0);
    await tester.pumpAndSettle();

    final RenderEditable renderEditable = findRenderEditable(tester);
    final List<TextSelectionPoint> endpoints = globalize(
      renderEditable.getEndpointsForSelection(selection),
      renderEditable,
    );
    expect(endpoints.length, 2);

    // Left handle should appear between textfield's left and right position.
    final Offset textFieldLeftPosition = tester.getTopLeft(find.byType(CupertinoTextField));
    expect(endpoints[0].point.dx - textFieldLeftPosition.dx, isPositive);
    final Offset textFieldRightPosition = tester.getTopRight(find.byType(CupertinoTextField));
    expect(textFieldRightPosition.dx - endpoints[0].point.dx, isPositive);
    // Right handle should remain off-screen.
    expect(endpoints[1].point.dx - textFieldRightPosition.dx, isPositive);

    // Drag the left handle to the right by 25 offset.
    const toOffset = 25;
    final double beforeScrollOffset = scrollController.offset;
    final Offset handlePos = endpoints[0].point + const Offset(-1.0, 1.0);
    final Offset newHandlePos = textOffsetToPosition(tester, toOffset);
    final TestGesture gesture = await tester.startGesture(handlePos, pointer: 7);
    await tester.pump();
    await gesture.moveTo(newHandlePos);
    await tester.pump();
    await gesture.up();
    await tester.pump();

    switch (defaultTargetPlatform) {
      case TargetPlatform.iOS:
      case TargetPlatform.macOS:
        // On Apple platforms, dragging the base handle makes it the extent.
        expect(controller.selection.baseOffset, testValue.length);
        expect(controller.selection.extentOffset, toOffset);
      case TargetPlatform.android:
      case TargetPlatform.fuchsia:
      case TargetPlatform.linux:
      case TargetPlatform.windows:
        expect(controller.selection.baseOffset, toOffset);
        expect(controller.selection.extentOffset, testValue.length);
    }

    // The scroll area of text field should not move.
    expect(scrollController.offset, beforeScrollOffset);
  });

  testWidgets('Can drag the right handle while the left handle remains off-screen', (
    WidgetTester tester,
  ) async {
    // Text is longer than textfield width.
    const testValue = 'aaaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbb';
    final controller = TextEditingController(text: testValue);
    addTearDown(controller.dispose);
    final scrollController = ScrollController();
    addTearDown(scrollController.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            dragStartBehavior: DragStartBehavior.down,
            controller: controller,
            scrollController: scrollController,
          ),
        ),
      ),
    );

    // Double tap 'a' to show handles.
    final Offset aPos = textOffsetToPosition(tester, testValue.indexOf('a'));
    await tester.tapAt(aPos);
    await tester.pump(kDoubleTapTimeout ~/ 2);
    await tester.tapAt(aPos);
    await tester.pumpAndSettle();

    final TextSelection selection = controller.selection;
    expect(selection.baseOffset, 0);
    expect(selection.extentOffset, 27);

    // Move to the right edge.
    scrollController.jumpTo(800);
    await tester.pumpAndSettle();

    final RenderEditable renderEditable = findRenderEditable(tester);
    final List<TextSelectionPoint> endpoints = globalize(
      renderEditable.getEndpointsForSelection(selection),
      renderEditable,
    );
    expect(endpoints.length, 2);

    // Right handle should appear between textfield's left and right position.
    final Offset textFieldLeftPosition = tester.getTopLeft(find.byType(CupertinoTextField));
    expect(endpoints[1].point.dx - textFieldLeftPosition.dx, isPositive);
    final Offset textFieldRightPosition = tester.getTopRight(find.byType(CupertinoTextField));
    expect(textFieldRightPosition.dx - endpoints[1].point.dx, isPositive);
    // Left handle should remain off-screen.
    expect(endpoints[0].point.dx, isNegative);

    // Drag the right handle to the left by 50 offset.
    const toOffset = 50;
    final double beforeScrollOffset = scrollController.offset;
    final Offset handlePos = endpoints[1].point + const Offset(1.0, 1.0);
    final Offset newHandlePos = textOffsetToPosition(tester, toOffset);
    final TestGesture gesture = await tester.startGesture(handlePos, pointer: 7);
    await tester.pump();
    await gesture.moveTo(newHandlePos);
    await tester.pump();
    await gesture.up();
    await tester.pump();

    expect(controller.selection.baseOffset, 0);
    expect(controller.selection.extentOffset, toOffset);

    // The scroll area of text field should not move.
    expect(scrollController.offset, beforeScrollOffset);
  });

  group(
    'Text selection toolbar',
    () {
      testWidgets('Collapsed selection works', (WidgetTester tester) async {
        tester.view.physicalSize = const Size(400, 400);
        tester.view.devicePixelRatio = 1;
        addTearDown(tester.view.reset);

        EditableText.debugDeterministicCursor = true;
        TextEditingController controller;
        EditableTextState state;
        Offset bottomLeftSelectionPosition;

        controller = TextEditingController(text: 'a');
        // Top left collapsed selection. The toolbar should flip vertically, and
        // the arrow should not point exactly to the caret because the caret is
        // too close to the left.
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                alignment: Alignment.topLeft,
                child: SizedBox(
                  width: 200,
                  height: 200,
                  child: CupertinoTextField(controller: controller, maxLines: null),
                ),
              ),
            ),
          ),
        );

        state = tester.state<EditableTextState>(find.byType(EditableText));
        final double lineHeight = state.renderEditable.preferredLineHeight;

        state.renderEditable.selectPositionAt(
          from: textOffsetToPosition(tester, 0),
          cause: SelectionChangedCause.tap,
        );
        expect(state.showToolbar(), true);
        await tester.pumpAndSettle();

        bottomLeftSelectionPosition = textOffsetToBottomLeftPosition(tester, 0);
        expect(
          find.byType(CupertinoTextSelectionToolbar),
          paints..clipPath(
            pathMatcher: PathPointsMatcher(
              excludes: <Offset>[
                // Arrow should not point to the selection handle.
                bottomLeftSelectionPosition.translate(0, 8 + 0.1),
              ],
              includes: <Offset>[
                // Expected center of the arrow. The arrow should stay clear of
                // the edges of the selection toolbar.
                Offset(26.0, bottomLeftSelectionPosition.dy + 8.0 + 0.1),
              ],
            ),
          ),
        );

        expect(
          find.byType(CupertinoTextSelectionToolbar),
          paints..clipPath(
            pathMatcher: PathBoundsMatcher(
              topMatcher: moreOrLessEquals(bottomLeftSelectionPosition.dy + 8, epsilon: 0.01),
              leftMatcher: moreOrLessEquals(8),
              rightMatcher: lessThanOrEqualTo(400 - 8),
              bottomMatcher: moreOrLessEquals(
                bottomLeftSelectionPosition.dy + 8 + 44,
                epsilon: 0.01,
              ),
            ),
          ),
        );

        // Top Right collapsed selection. The toolbar should flip vertically, and
        // the arrow should not point exactly to the caret because the caret is
        // too close to the right.
        controller.dispose();
        controller = TextEditingController(text: 'a' * 200);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                alignment: Alignment.topRight,
                child: SizedBox(
                  width: 200,
                  height: 200,
                  child: CupertinoTextField(controller: controller, maxLines: null),
                ),
              ),
            ),
          ),
        );

        state = tester.state<EditableTextState>(find.byType(EditableText));
        state.renderEditable.selectPositionAt(
          from: tester.getTopRight(find.byType(CupertinoApp)),
          cause: SelectionChangedCause.tap,
        );
        await tester.pumpAndSettle();

        // -1 because we want to reach the end of the line, not the start of a new line.
        bottomLeftSelectionPosition = textOffsetToBottomLeftPosition(
          tester,
          state.renderEditable.selection!.baseOffset - 1,
        );

        expect(
          find.byType(CupertinoTextSelectionToolbar),
          paints..clipPath(
            pathMatcher: PathPointsMatcher(
              excludes: <Offset>[
                // Arrow should not point to the selection handle.
                bottomLeftSelectionPosition.translate(0, 8 + 0.1),
              ],
              includes: <Offset>[
                // Expected center of the arrow.
                Offset(400 - 26.0, bottomLeftSelectionPosition.dy + 8 + 0.1),
              ],
            ),
          ),
        );

        expect(
          find.byType(CupertinoTextSelectionToolbar),
          paints..clipPath(
            pathMatcher: PathBoundsMatcher(
              topMatcher: moreOrLessEquals(bottomLeftSelectionPosition.dy + 8, epsilon: 0.01),
              rightMatcher: moreOrLessEquals(400.0 - 8),
              bottomMatcher: moreOrLessEquals(
                bottomLeftSelectionPosition.dy + 8 + 44,
                epsilon: 0.01,
              ),
              leftMatcher: greaterThanOrEqualTo(8),
            ),
          ),
        );

        // Normal centered collapsed selection. The toolbar arrow should point down, and
        // it should point exactly to the caret.
        controller.dispose();
        controller = TextEditingController(text: 'a' * 200);
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                child: SizedBox(
                  width: 200,
                  height: 200,
                  child: CupertinoTextField(controller: controller, maxLines: null),
                ),
              ),
            ),
          ),
        );

        state = tester.state<EditableTextState>(find.byType(EditableText));
        state.renderEditable.selectPositionAt(
          from: tester.getCenter(find.byType(EditableText)),
          cause: SelectionChangedCause.tap,
        );
        await tester.pumpAndSettle();

        bottomLeftSelectionPosition = textOffsetToBottomLeftPosition(
          tester,
          state.renderEditable.selection!.baseOffset,
        );

        expect(
          find.byType(CupertinoTextSelectionToolbar),
          paints..clipPath(
            pathMatcher: PathPointsMatcher(
              includes: <Offset>[
                // Expected center of the arrow.
                bottomLeftSelectionPosition.translate(0, -lineHeight - 8 - 0.1),
              ],
            ),
          ),
        );

        expect(
          find.byType(CupertinoTextSelectionToolbar),
          paints..clipPath(
            pathMatcher: PathBoundsMatcher(
              bottomMatcher: moreOrLessEquals(
                bottomLeftSelectionPosition.dy - 8 - lineHeight,
                epsilon: 0.01,
              ),
              topMatcher: moreOrLessEquals(
                bottomLeftSelectionPosition.dy - 8 - lineHeight - 44,
                epsilon: 0.01,
              ),
              rightMatcher: lessThanOrEqualTo(400 - 8),
              leftMatcher: greaterThanOrEqualTo(8),
            ),
          ),
        );
      });

      testWidgets('selecting multiple words works', (WidgetTester tester) async {
        tester.view.physicalSize = const Size(400, 400);
        tester.view.devicePixelRatio = 1;
        addTearDown(tester.view.reset);

        EditableText.debugDeterministicCursor = true;
        final TextEditingController controller;
        final EditableTextState state;

        // Normal multiword collapsed selection. The toolbar arrow should point down, and
        // it should point exactly to the caret.
        controller = TextEditingController(text: List<String>.filled(20, 'a').join('  '));
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                child: SizedBox(
                  width: 200,
                  height: 200,
                  child: CupertinoTextField(controller: controller, maxLines: null),
                ),
              ),
            ),
          ),
        );

        state = tester.state<EditableTextState>(find.byType(EditableText));
        final double lineHeight = state.renderEditable.preferredLineHeight;

        // Select the first 2 words.
        state.renderEditable.selectPositionAt(
          from: textOffsetToPosition(tester, 0),
          to: textOffsetToPosition(tester, 4),
          cause: SelectionChangedCause.tap,
        );
        expect(state.showToolbar(), true);
        await tester.pumpAndSettle();

        final Offset selectionPosition =
            (textOffsetToBottomLeftPosition(tester, 0) +
                textOffsetToBottomLeftPosition(tester, 4)) /
            2;

        expect(
          find.byType(CupertinoTextSelectionToolbar),
          paints..clipPath(
            pathMatcher: PathPointsMatcher(
              includes: <Offset>[
                // Expected center of the arrow.
                selectionPosition.translate(0, -lineHeight - 8 - 0.1),
              ],
            ),
          ),
        );

        expect(
          find.byType(CupertinoTextSelectionToolbar),
          paints..clipPath(
            pathMatcher: PathBoundsMatcher(
              bottomMatcher: moreOrLessEquals(selectionPosition.dy - 8 - lineHeight, epsilon: 0.01),
              topMatcher: moreOrLessEquals(
                selectionPosition.dy - 8 - lineHeight - 44,
                epsilon: 0.01,
              ),
              rightMatcher: lessThanOrEqualTo(400 - 8),
              leftMatcher: greaterThanOrEqualTo(8),
            ),
          ),
        );
      });

      testWidgets('selecting multiline works', (WidgetTester tester) async {
        tester.view.physicalSize = const Size(400, 400);
        tester.view.devicePixelRatio = 1;
        addTearDown(tester.view.reset);

        EditableText.debugDeterministicCursor = true;
        final TextEditingController controller;
        final EditableTextState state;

        // Normal multiline collapsed selection. The toolbar arrow should point down, and
        // it should point exactly to the horizontal center of the text field.
        controller = TextEditingController(text: List<String>.filled(20, 'a  a  ').join('\n'));
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                child: SizedBox(
                  width: 200,
                  height: 200,
                  child: CupertinoTextField(controller: controller, maxLines: null),
                ),
              ),
            ),
          ),
        );

        state = tester.state<EditableTextState>(find.byType(EditableText));
        final double lineHeight = state.renderEditable.preferredLineHeight;

        // Select the first 2 words.
        state.renderEditable.selectPositionAt(
          from: textOffsetToPosition(tester, 0),
          to: textOffsetToPosition(tester, 10),
          cause: SelectionChangedCause.tap,
        );
        expect(state.showToolbar(), true);
        await tester.pumpAndSettle();

        final selectionPosition = Offset(
          // Toolbar should be centered.
          200,
          textOffsetToBottomLeftPosition(tester, 0).dy,
        );

        expect(
          find.byType(CupertinoTextSelectionToolbar),
          paints..clipPath(
            pathMatcher: PathPointsMatcher(
              includes: <Offset>[
                // Expected center of the arrow.
                selectionPosition.translate(0, -lineHeight - 8 - 0.1),
              ],
            ),
          ),
        );

        expect(
          find.byType(CupertinoTextSelectionToolbar),
          paints..clipPath(
            pathMatcher: PathBoundsMatcher(
              bottomMatcher: moreOrLessEquals(selectionPosition.dy - 8 - lineHeight, epsilon: 0.01),
              topMatcher: moreOrLessEquals(
                selectionPosition.dy - 8 - lineHeight - 44,
                epsilon: 0.01,
              ),
              rightMatcher: lessThanOrEqualTo(400 - 8),
              leftMatcher: greaterThanOrEqualTo(8),
            ),
          ),
        );
      });

      // This is a regression test for
      // https://github.com/flutter/flutter/issues/37046.
      testWidgets('No exceptions when showing selection menu inside of nested Navigators', (
        WidgetTester tester,
      ) async {
        const testValue = '123456';
        final controller = TextEditingController(text: testValue);
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            home: CupertinoPageScaffold(
              child: Center(
                child: Column(
                  children: <Widget>[
                    Container(height: 100, color: CupertinoColors.black),
                    Expanded(
                      child: Navigator(
                        onGenerateRoute: (_) => CupertinoPageRoute<void>(
                          builder: (_) => CupertinoTextField(controller: controller),
                        ),
                      ),
                    ),
                  ],
                ),
              ),
            ),
          ),
        );

        // No text selection toolbar.
        expect(find.byType(CupertinoTextSelectionToolbar), findsNothing);

        // Double tap on the text in the input.
        await tester.pumpAndSettle();
        await tester.tapAt(textOffsetToPosition(tester, testValue.length ~/ 2));
        await tester.pump(const Duration(milliseconds: 100));
        await tester.tapAt(textOffsetToPosition(tester, testValue.length ~/ 2));
        await tester.pumpAndSettle();

        // Now the text selection toolbar is showing and there were no exceptions.
        expect(find.byType(CupertinoTextSelectionToolbar), findsOneWidget);
        expect(tester.takeException(), null);
      });

      testWidgets('Drag selection hides the selection menu', (WidgetTester tester) async {
        final controller = TextEditingController(text: 'blah1 blah2');
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            home: Center(child: CupertinoTextField(controller: controller)),
          ),
        );

        // Initially, the menu is not shown and there is no selection.
        expect(controller.selection, const TextSelection(baseOffset: -1, extentOffset: -1));
        final Offset midBlah1 = textOffsetToPosition(tester, 2);
        final Offset midBlah2 = textOffsetToPosition(tester, 8);

        // Right click the second word.
        final TestGesture gesture = await tester.startGesture(
          midBlah2,
          kind: PointerDeviceKind.mouse,
          buttons: kSecondaryMouseButton,
        );
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();

        // The toolbar is shown.
        expect(find.text('Paste'), findsOneWidget);

        // Drag the mouse to the first word.
        final TestGesture gesture2 = await tester.startGesture(
          midBlah1,
          kind: PointerDeviceKind.mouse,
        );
        await tester.pump();
        await gesture2.moveTo(midBlah2);
        await tester.pump();
        await gesture2.up();
        await tester.pumpAndSettle();

        // The toolbar is hidden.
        expect(find.text('Paste'), findsNothing);
      }, variant: TargetPlatformVariant.desktop());
    },
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  group('textAlignVertical position', () {
    group('simple case', () {
      testWidgets('align top (default)', (WidgetTester tester) async {
        final focusNode = FocusNode();
        addTearDown(focusNode.dispose);
        const size = Size(200.0, 200.0);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                child: SizedBox(
                  width: size.width,
                  height: size.height,
                  child: CupertinoTextField(focusNode: focusNode, expands: true, maxLines: null),
                ),
              ),
            ),
          ),
        );

        // Fills the whole container since expands is true.
        expect(tester.getSize(find.byType(CupertinoTextField)), size);

        // Tapping anywhere inside focuses it.
        expect(focusNode.hasFocus, false);
        await tester.tapAt(tester.getTopLeft(find.byType(CupertinoTextField)));
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, true);
        focusNode.unfocus();
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, false);
        final Offset justInside = tester
            .getBottomLeft(find.byType(CupertinoTextField))
            .translate(0.0, -1.0);
        await tester.tapAt(justInside);
        await tester.pumpAndSettle();
        await tester.pump(const Duration(milliseconds: 300));
        expect(focusNode.hasFocus, true);

        // The EditableText is at the top.
        expect(
          tester.getTopLeft(find.byType(CupertinoTextField)).dy,
          moreOrLessEquals(size.height, epsilon: .0001),
        );
        expect(
          tester.getTopLeft(find.byType(EditableText)).dy,
          moreOrLessEquals(207.0, epsilon: .0001),
        );
      });

      testWidgets('align center', (WidgetTester tester) async {
        final focusNode = FocusNode();
        addTearDown(focusNode.dispose);
        const size = Size(200.0, 200.0);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                child: SizedBox(
                  width: size.width,
                  height: size.height,
                  child: CupertinoTextField(
                    textAlignVertical: TextAlignVertical.center,
                    focusNode: focusNode,
                    expands: true,
                    maxLines: null,
                  ),
                ),
              ),
            ),
          ),
        );

        // Fills the whole container since expands is true.
        expect(tester.getSize(find.byType(CupertinoTextField)), size);

        // Tapping anywhere inside focuses it.
        expect(focusNode.hasFocus, false);
        await tester.tapAt(tester.getTopLeft(find.byType(CupertinoTextField)));
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, true);
        focusNode.unfocus();
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, false);
        final Offset justInside = tester
            .getBottomLeft(find.byType(CupertinoTextField))
            .translate(0.0, -1.0);
        await tester.tapAt(justInside);
        await tester.pumpAndSettle();
        await tester.pump(const Duration(milliseconds: 300));
        expect(focusNode.hasFocus, true);

        // The EditableText is at the center.
        expect(
          tester.getTopLeft(find.byType(CupertinoTextField)).dy,
          moreOrLessEquals(size.height, epsilon: .0001),
        );
        expect(
          tester.getTopLeft(find.byType(EditableText)).dy,
          moreOrLessEquals(291.5, epsilon: .0001),
        );
      });

      testWidgets('align bottom', (WidgetTester tester) async {
        final focusNode = FocusNode();
        addTearDown(focusNode.dispose);
        const size = Size(200.0, 200.0);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                child: SizedBox(
                  width: size.width,
                  height: size.height,
                  child: CupertinoTextField(
                    textAlignVertical: TextAlignVertical.bottom,
                    focusNode: focusNode,
                    expands: true,
                    maxLines: null,
                  ),
                ),
              ),
            ),
          ),
        );

        // Fills the whole container since expands is true.
        expect(tester.getSize(find.byType(CupertinoTextField)), size);

        // Tapping anywhere inside focuses it.
        expect(focusNode.hasFocus, false);
        await tester.tapAt(tester.getTopLeft(find.byType(CupertinoTextField)));
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, true);
        focusNode.unfocus();
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, false);
        final Offset justInside = tester
            .getBottomLeft(find.byType(CupertinoTextField))
            .translate(0.0, -1.0);
        await tester.tapAt(justInside);
        await tester.pumpAndSettle();
        await tester.pump(const Duration(milliseconds: 300));
        expect(focusNode.hasFocus, true);

        // The EditableText is at the bottom.
        expect(
          tester.getTopLeft(find.byType(CupertinoTextField)).dy,
          moreOrLessEquals(size.height, epsilon: .0001),
        );
        expect(
          tester.getTopLeft(find.byType(EditableText)).dy,
          moreOrLessEquals(376.0, epsilon: .0001),
        );
      });

      testWidgets('align as a double', (WidgetTester tester) async {
        final focusNode = FocusNode();
        addTearDown(focusNode.dispose);
        const size = Size(200.0, 200.0);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                child: SizedBox(
                  width: size.width,
                  height: size.height,
                  child: CupertinoTextField(
                    textAlignVertical: const TextAlignVertical(y: 0.75),
                    focusNode: focusNode,
                    expands: true,
                    maxLines: null,
                  ),
                ),
              ),
            ),
          ),
        );

        // Fills the whole container since expands is true.
        expect(tester.getSize(find.byType(CupertinoTextField)), size);

        // Tapping anywhere inside focuses it.
        expect(focusNode.hasFocus, false);
        await tester.tapAt(tester.getTopLeft(find.byType(CupertinoTextField)));
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, true);
        focusNode.unfocus();
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, false);
        final Offset justInside = tester
            .getBottomLeft(find.byType(CupertinoTextField))
            .translate(0.0, -1.0);
        await tester.tapAt(justInside);
        await tester.pumpAndSettle();
        await tester.pump(const Duration(milliseconds: 300));
        expect(focusNode.hasFocus, true);

        // The EditableText is near the bottom.
        expect(
          tester.getTopLeft(find.byType(CupertinoTextField)).dy,
          moreOrLessEquals(size.height, epsilon: .0001),
        );
        expect(
          tester.getTopLeft(find.byType(EditableText)).dy,
          moreOrLessEquals(354.875, epsilon: .0001),
        );
      });
    });

    group('tall prefix', () {
      testWidgets('align center (default when prefix)', (WidgetTester tester) async {
        final focusNode = FocusNode();
        addTearDown(focusNode.dispose);
        const size = Size(200.0, 200.0);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                child: SizedBox(
                  width: size.width,
                  height: size.height,
                  child: CupertinoTextField(
                    focusNode: focusNode,
                    expands: true,
                    maxLines: null,
                    prefix: const SizedBox(height: 100, width: 10),
                  ),
                ),
              ),
            ),
          ),
        );

        // Fills the whole container since expands is true.
        expect(tester.getSize(find.byType(CupertinoTextField)), size);

        // Tapping anywhere inside focuses it. This includes tapping on the
        // prefix, because in this case it is transparent.
        expect(focusNode.hasFocus, false);
        await tester.tapAt(tester.getTopLeft(find.byType(CupertinoTextField)));
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, true);
        focusNode.unfocus();
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, false);
        final Offset justInside = tester
            .getBottomLeft(find.byType(CupertinoTextField))
            .translate(0.0, -1.0);
        await tester.tapAt(justInside);
        await tester.pumpAndSettle();
        await tester.pump(const Duration(milliseconds: 300));
        expect(focusNode.hasFocus, true);

        // The EditableText is at the center. Same as without prefix.
        expect(
          tester.getTopLeft(find.byType(CupertinoTextField)).dy,
          moreOrLessEquals(size.height, epsilon: .0001),
        );
        expect(
          tester.getTopLeft(find.byType(EditableText)).dy,
          moreOrLessEquals(291.5, epsilon: .0001),
        );
      });

      testWidgets('align top', (WidgetTester tester) async {
        final focusNode = FocusNode();
        addTearDown(focusNode.dispose);
        const size = Size(200.0, 200.0);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                child: SizedBox(
                  width: size.width,
                  height: size.height,
                  child: CupertinoTextField(
                    textAlignVertical: TextAlignVertical.top,
                    focusNode: focusNode,
                    expands: true,
                    maxLines: null,
                    prefix: const SizedBox(height: 100, width: 10),
                  ),
                ),
              ),
            ),
          ),
        );

        // Fills the whole container since expands is true.
        expect(tester.getSize(find.byType(CupertinoTextField)), size);

        // Tapping anywhere inside focuses it. This includes tapping on the
        // prefix, because in this case it is transparent.
        expect(focusNode.hasFocus, false);
        await tester.tapAt(tester.getTopLeft(find.byType(CupertinoTextField)));
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, true);
        focusNode.unfocus();
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, false);
        final Offset justInside = tester
            .getBottomLeft(find.byType(CupertinoTextField))
            .translate(0.0, -1.0);
        await tester.tapAt(justInside);
        await tester.pumpAndSettle();
        await tester.pump(const Duration(milliseconds: 300));
        expect(focusNode.hasFocus, true);

        // The prefix is at the top, and the EditableText is centered within its
        // height.
        expect(
          tester.getTopLeft(find.byType(CupertinoTextField)).dy,
          moreOrLessEquals(size.height, epsilon: .0001),
        );
        expect(
          tester.getTopLeft(find.byType(EditableText)).dy,
          moreOrLessEquals(241.5, epsilon: .0001),
        );
      });

      testWidgets('align bottom', (WidgetTester tester) async {
        final focusNode = FocusNode();
        addTearDown(focusNode.dispose);
        const size = Size(200.0, 200.0);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                child: SizedBox(
                  width: size.width,
                  height: size.height,
                  child: CupertinoTextField(
                    textAlignVertical: TextAlignVertical.bottom,
                    focusNode: focusNode,
                    expands: true,
                    maxLines: null,
                    prefix: const SizedBox(height: 100, width: 10),
                  ),
                ),
              ),
            ),
          ),
        );

        // Fills the whole container since expands is true.
        expect(tester.getSize(find.byType(CupertinoTextField)), size);

        // Tapping anywhere inside focuses it. This includes tapping on the
        // prefix, because in this case it is transparent.
        expect(focusNode.hasFocus, false);
        await tester.tapAt(tester.getTopLeft(find.byType(CupertinoTextField)));
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, true);
        focusNode.unfocus();
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, false);
        final Offset justInside = tester
            .getBottomLeft(find.byType(CupertinoTextField))
            .translate(0.0, -1.0);
        await tester.tapAt(justInside);
        await tester.pumpAndSettle();
        await tester.pump(const Duration(milliseconds: 300));
        expect(focusNode.hasFocus, true);

        // The prefix is at the bottom, and the EditableText is centered within
        // its height.
        expect(
          tester.getTopLeft(find.byType(CupertinoTextField)).dy,
          moreOrLessEquals(size.height, epsilon: .0001),
        );
        expect(
          tester.getTopLeft(find.byType(EditableText)).dy,
          moreOrLessEquals(341.5, epsilon: .0001),
        );
      });

      testWidgets('align as a double', (WidgetTester tester) async {
        final focusNode = FocusNode();
        addTearDown(focusNode.dispose);
        const size = Size(200.0, 200.0);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                child: SizedBox(
                  width: size.width,
                  height: size.height,
                  child: CupertinoTextField(
                    textAlignVertical: const TextAlignVertical(y: 0.75),
                    focusNode: focusNode,
                    expands: true,
                    maxLines: null,
                    prefix: const SizedBox(height: 100, width: 10),
                  ),
                ),
              ),
            ),
          ),
        );

        // Fills the whole container since expands is true.
        expect(tester.getSize(find.byType(CupertinoTextField)), size);

        // Tapping anywhere inside focuses it. This includes tapping on the
        // prefix, because in this case it is transparent.
        expect(focusNode.hasFocus, false);
        await tester.tapAt(tester.getTopLeft(find.byType(CupertinoTextField)));
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, true);
        focusNode.unfocus();
        await tester.pumpAndSettle();
        expect(focusNode.hasFocus, false);
        final Offset justInside = tester
            .getBottomLeft(find.byType(CupertinoTextField))
            .translate(0.0, -1.0);
        await tester.tapAt(justInside);
        await tester.pumpAndSettle();
        await tester.pump(const Duration(milliseconds: 300));
        expect(focusNode.hasFocus, true);

        // The EditableText is near the bottom.
        expect(
          tester.getTopLeft(find.byType(CupertinoTextField)).dy,
          moreOrLessEquals(size.height, epsilon: .0001),
        );
        expect(
          tester.getTopLeft(find.byType(EditableText)).dy,
          moreOrLessEquals(329.0, epsilon: .0001),
        );
      });
    });

    testWidgets('Long press on an autofocused field shows the selection menu', (
      WidgetTester tester,
    ) async {
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: ConstrainedBox(
              constraints: BoxConstraints.loose(const Size(200, 200)),
              child: const CupertinoTextField(autofocus: true),
            ),
          ),
        ),
      );
      // This extra pump allows the selection set by autofocus to propagate to
      // the RenderEditable.
      await tester.pump();

      // Long press shows the selection menu.
      await tester.longPressAt(textOffsetToPosition(tester, 0));
      await tester.pumpAndSettle();
      expect(find.text('Paste'), isContextMenuProvidedByPlatform ? findsNothing : findsOneWidget);
    });

    testWidgets('Placeholder and editable text with differing font sizes', (
      WidgetTester tester,
    ) async {
      const size = Size(200.0, 200.0);
      TextAlignVertical alignment = TextAlignVertical.top;
      late StateSetter setState;

      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: StatefulBuilder(
              builder: (BuildContext context, StateSetter setter) {
                setState = setter;
                return CupertinoPageScaffold(
                  child: Align(
                    child: SizedBox(
                      width: size.width,
                      height: size.height,
                      child: CupertinoTextField(
                        placeholder: 'hint text',
                        placeholderStyle: const TextStyle(fontSize: 30.0),
                        style: const TextStyle(fontSize: 20.0),
                        textAlignVertical: alignment,
                      ),
                    ),
                  ),
                );
              },
            ),
          ),
        ),
      );

      await tester.enterText(find.byType(CupertinoTextField), 'text');
      await tester.pump();
      expect(
        tester.getTopLeft(find.byType(EditableText)).dy,
        moreOrLessEquals(207.0, epsilon: .0001),
      );

      setState(() {
        alignment = TextAlignVertical.center;
      });
      await tester.pump();
      expect(
        tester.getTopLeft(find.byType(EditableText)).dy,
        moreOrLessEquals(290.0, epsilon: .0001),
      );

      setState(() {
        alignment = TextAlignVertical.bottom;
      });
      await tester.pump();
      expect(
        tester.getTopLeft(find.byType(EditableText)).dy,
        moreOrLessEquals(373.0, epsilon: .0001),
      );
    });
  });

  testWidgets("Arrow keys don't move input focus", (WidgetTester tester) async {
    final controller1 = TextEditingController();
    final controller2 = TextEditingController();
    final controller3 = TextEditingController();
    final controller4 = TextEditingController();
    final controller5 = TextEditingController();
    final focusNode1 = FocusNode(debugLabel: 'Field 1');
    final focusNode2 = FocusNode(debugLabel: 'Field 2');
    final focusNode3 = FocusNode(debugLabel: 'Field 3');
    final focusNode4 = FocusNode(debugLabel: 'Field 4');
    final focusNode5 = FocusNode(debugLabel: 'Field 5');
    addTearDown(focusNode1.dispose);
    addTearDown(focusNode2.dispose);
    addTearDown(focusNode3.dispose);
    addTearDown(focusNode4.dispose);
    addTearDown(focusNode5.dispose);
    addTearDown(controller1.dispose);
    addTearDown(controller2.dispose);
    addTearDown(controller3.dispose);
    addTearDown(controller4.dispose);
    addTearDown(controller5.dispose);

    // Lay out text fields in a "+" formation, and focus the center one.
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            mainAxisSize: MainAxisSize.min,
            children: <Widget>[
              SizedBox(
                width: 100.0,
                child: CupertinoTextField(controller: controller1, focusNode: focusNode1),
              ),
              Row(
                mainAxisAlignment: MainAxisAlignment.center,
                mainAxisSize: MainAxisSize.min,
                children: <Widget>[
                  SizedBox(
                    width: 100.0,
                    child: CupertinoTextField(controller: controller2, focusNode: focusNode2),
                  ),
                  SizedBox(
                    width: 100.0,
                    child: CupertinoTextField(controller: controller3, focusNode: focusNode3),
                  ),
                  SizedBox(
                    width: 100.0,
                    child: CupertinoTextField(controller: controller4, focusNode: focusNode4),
                  ),
                ],
              ),
              SizedBox(
                width: 100.0,
                child: CupertinoTextField(controller: controller5, focusNode: focusNode5),
              ),
            ],
          ),
        ),
      ),
    );

    focusNode3.requestFocus();
    await tester.pump();
    expect(focusNode3.hasPrimaryFocus, isTrue);

    await tester.sendKeyEvent(LogicalKeyboardKey.arrowUp);
    await tester.pump();
    expect(focusNode3.hasPrimaryFocus, isTrue);

    await tester.sendKeyEvent(LogicalKeyboardKey.arrowDown);
    await tester.pump();
    expect(focusNode3.hasPrimaryFocus, isTrue);

    await tester.sendKeyEvent(LogicalKeyboardKey.arrowLeft);
    await tester.pump();
    expect(focusNode3.hasPrimaryFocus, isTrue);

    await tester.sendKeyEvent(LogicalKeyboardKey.arrowRight);
    await tester.pump();
    expect(focusNode3.hasPrimaryFocus, isTrue);
  }, variant: KeySimulatorTransitModeVariant.all());

  testWidgets('Scrolling shortcuts are disabled in text fields', (WidgetTester tester) async {
    var scrollInvoked = false;
    await tester.pumpWidget(
      CupertinoApp(
        home: Actions(
          actions: <Type, Action<Intent>>{
            ScrollIntent: CallbackAction<ScrollIntent>(
              onInvoke: (Intent intent) {
                scrollInvoked = true;
                return null;
              },
            ),
          },
          child: ListView(
            children: const <Widget>[
              Padding(padding: EdgeInsets.symmetric(vertical: 200)),
              CupertinoTextField(),
              Padding(padding: EdgeInsets.symmetric(vertical: 800)),
            ],
          ),
        ),
      ),
    );
    await tester.pump();
    expect(scrollInvoked, isFalse);

    // Set focus on the text field.
    await tester.tapAt(tester.getTopLeft(find.byType(CupertinoTextField)));

    await tester.sendKeyEvent(LogicalKeyboardKey.space);
    expect(scrollInvoked, isFalse);

    await tester.sendKeyEvent(LogicalKeyboardKey.arrowDown);
    expect(scrollInvoked, isFalse);
  }, variant: KeySimulatorTransitModeVariant.all());

  testWidgets('Cupertino text field semantics', (WidgetTester tester) async {
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: ConstrainedBox(
            constraints: BoxConstraints.loose(const Size(200, 200)),
            child: const CupertinoTextField(),
          ),
        ),
      ),
    );

    expect(
      tester.getSemantics(
        find
            .descendant(of: find.byType(CupertinoTextField), matching: find.byType(Semantics))
            .first,
      ),
      matchesSemantics(
        isTextField: true,
        isFocusable: true,
        isEnabled: true,
        hasEnabledState: true,
        hasTapAction: true,
        hasFocusAction: true,
      ),
    );
  });

  testWidgets('Disabled Cupertino text field semantics', (WidgetTester tester) async {
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: ConstrainedBox(
            constraints: BoxConstraints.loose(const Size(200, 200)),
            child: const CupertinoTextField(enabled: false),
          ),
        ),
      ),
    );

    expect(
      tester.getSemantics(
        find
            .descendant(of: find.byType(CupertinoTextField), matching: find.byType(Semantics))
            .first,
      ),
      matchesSemantics(
        hasEnabledState: true,
        isTextField: true,
        isFocusable: true,
        isReadOnly: true,
      ),
    );
  });

  testWidgets('Cupertino text field clear button semantics', (WidgetTester tester) async {
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: ConstrainedBox(
            constraints: BoxConstraints.loose(const Size(200, 200)),
            child: const CupertinoTextField(clearButtonMode: OverlayVisibilityMode.always),
          ),
        ),
      ),
    );

    expect(find.bySemanticsLabel('Clear'), findsOneWidget);

    expect(
      tester.getSemantics(find.bySemanticsLabel('Clear').first),
      matchesSemantics(isButton: true, hasTapAction: true, label: 'Clear'),
    );
  });

  testWidgets('Cupertino text field clear semantic label', (WidgetTester tester) async {
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: ConstrainedBox(
            constraints: BoxConstraints.loose(const Size(200, 200)),
            child: const CupertinoTextField(
              clearButtonMode: OverlayVisibilityMode.always,
              clearButtonSemanticLabel: 'Delete Text',
            ),
          ),
        ),
      ),
    );

    expect(find.bySemanticsLabel('Clear'), findsNothing);

    expect(find.bySemanticsLabel('Delete Text'), findsOneWidget);

    expect(
      tester.getSemantics(find.bySemanticsLabel('Delete Text').first),
      matchesSemantics(isButton: true, hasTapAction: true, label: 'Delete Text'),
    );
  });

  testWidgets('CrossAxisAlignment start positions the prefix and suffix at the top of the field', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            padding: EdgeInsets.zero, // Preventing delta position.dy
            prefix: Icon(CupertinoIcons.add),
            suffix: Icon(CupertinoIcons.clear),
            crossAxisAlignment: CrossAxisAlignment.start,
          ),
        ),
      ),
    );

    final CupertinoTextField cupertinoTextField = tester.widget<CupertinoTextField>(
      find.byType(CupertinoTextField),
    );

    expect(find.widgetWithIcon(CupertinoTextField, CupertinoIcons.clear), findsOneWidget);
    expect(find.widgetWithIcon(CupertinoTextField, CupertinoIcons.add), findsOneWidget);
    expect(cupertinoTextField.crossAxisAlignment, CrossAxisAlignment.start);

    final double editableDy = tester.getTopLeft(find.byType(EditableText)).dy;
    final double prefixDy = tester.getTopLeft(find.byIcon(CupertinoIcons.add)).dy;
    final double suffixDy = tester.getTopLeft(find.byIcon(CupertinoIcons.clear)).dy;

    expect(prefixDy, editableDy);
    expect(suffixDy, editableDy);
  });

  testWidgets('CrossAxisAlignment end positions the prefix and suffix at the bottom of the field', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            padding: EdgeInsets.zero, // Preventing delta position.dy
            prefix: SizedBox.square(dimension: 48, child: Icon(CupertinoIcons.add)),
            suffix: SizedBox.square(dimension: 48, child: Icon(CupertinoIcons.clear)),
            crossAxisAlignment: CrossAxisAlignment.end,
          ),
        ),
      ),
    );

    final CupertinoTextField cupertinoTextField = tester.widget<CupertinoTextField>(
      find.byType(CupertinoTextField),
    );

    expect(find.widgetWithIcon(CupertinoTextField, CupertinoIcons.clear), findsOneWidget);
    expect(find.widgetWithIcon(CupertinoTextField, CupertinoIcons.add), findsOneWidget);
    expect(cupertinoTextField.crossAxisAlignment, CrossAxisAlignment.end);

    final double editableDy = tester.getTopLeft(find.byType(EditableText)).dy;
    final double prefixDy = tester.getTopLeft(find.byIcon(CupertinoIcons.add)).dy;
    final double suffixDy = tester.getTopLeft(find.byIcon(CupertinoIcons.clear)).dy;

    expect(prefixDy, lessThan(editableDy));
    expect(suffixDy, lessThan(editableDy));
  });

  testWidgets(
    'text selection style 1',
    (WidgetTester tester) async {
      final controller = TextEditingController(
        text: 'Atwater Peel Sherbrooke Bonaventure\nhi\nwassssup!',
      );
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: RepaintBoundary(
              child: Container(
                width: 650.0,
                height: 600.0,
                decoration: const BoxDecoration(color: Color(0xff00ff00)),
                child: Column(
                  children: <Widget>[
                    CupertinoTextField(
                      autofocus: true,
                      key: const Key('field0'),
                      controller: controller,
                      style: const TextStyle(height: 4, color: ui.Color.fromARGB(100, 0, 0, 0)),
                      toolbarOptions: const ToolbarOptions(selectAll: true),
                      selectionHeightStyle: ui.BoxHeightStyle.includeLineSpacingTop,
                      maxLines: 3,
                    ),
                  ],
                ),
              ),
            ),
          ),
        ),
      );

      // This extra pump is so autofocus can propagate to renderEditable.
      await tester.pump();

      final Offset textFieldStart = tester.getTopLeft(find.byKey(const Key('field0')));

      await tester.longPressAt(textFieldStart + const Offset(50.0, 2.0));
      await tester.pumpAndSettle(const Duration(milliseconds: 150));
      // Tap the Select All button.
      await tester.tapAt(textFieldStart + const Offset(20.0, 100.0));
      await tester.pump(const Duration(milliseconds: 300));

      await expectLater(
        find.byType(CupertinoApp),
        matchesGoldenFile('text_field_golden.TextSelectionStyle.1.png'),
      );
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
    skip: kIsWeb, // [intended] the web has its own Select All.
  );

  testWidgets(
    'text selection style 2',
    (WidgetTester tester) async {
      final controller = TextEditingController(
        text: 'Atwater Peel Sherbrooke Bonaventure\nhi\nwassssup!',
      );
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: RepaintBoundary(
              child: Container(
                width: 650.0,
                height: 600.0,
                decoration: const BoxDecoration(color: Color(0xff00ff00)),
                child: Column(
                  children: <Widget>[
                    CupertinoTextField(
                      autofocus: true,
                      key: const Key('field0'),
                      controller: controller,
                      style: const TextStyle(height: 4, color: ui.Color.fromARGB(100, 0, 0, 0)),
                      toolbarOptions: const ToolbarOptions(selectAll: true),
                      selectionHeightStyle: ui.BoxHeightStyle.includeLineSpacingBottom,
                      selectionWidthStyle: ui.BoxWidthStyle.tight,
                      maxLines: 3,
                    ),
                  ],
                ),
              ),
            ),
          ),
        ),
      );

      // This extra pump is so autofocus can propagate to renderEditable.
      await tester.pump();

      final Offset textFieldStart = tester.getTopLeft(find.byKey(const Key('field0')));

      await tester.longPressAt(textFieldStart + const Offset(50.0, 2.0));
      await tester.pumpAndSettle(const Duration(milliseconds: 150));
      // Tap the Select All button.
      await tester.tapAt(textFieldStart + const Offset(20.0, 100.0));
      await tester.pump(const Duration(milliseconds: 300));

      await expectLater(
        find.byType(CupertinoApp),
        matchesGoldenFile('text_field_golden.TextSelectionStyle.2.png'),
      );
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
    skip: kIsWeb, // [intended] the web has its own Select All.
  );

  testWidgets('textSelectionControls is passed to EditableText', (WidgetTester tester) async {
    final selectionControl = MockTextSelectionControls();
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(selectionControls: selectionControl)),
      ),
    );

    final EditableText widget = tester.widget(find.byType(EditableText));
    expect(widget.selectionControls, equals(selectionControl));
  });

  testWidgets('Do not add LengthLimiting formatter to the user supplied list', (
    WidgetTester tester,
  ) async {
    final formatters = <TextInputFormatter>[];

    await tester.pumpWidget(
      CupertinoApp(home: CupertinoTextField(maxLength: 5, inputFormatters: formatters)),
    );

    expect(formatters.isEmpty, isTrue);
  });

  group('MaxLengthEnforcement', () {
    const maxLength = 5;

    Future<void> setupWidget(WidgetTester tester, MaxLengthEnforcement? enforcement) async {
      final Widget widget = CupertinoApp(
        home: Center(
          child: CupertinoTextField(maxLength: maxLength, maxLengthEnforcement: enforcement),
        ),
      );

      await tester.pumpWidget(widget);
      await tester.pumpAndSettle();
    }

    testWidgets('using none enforcement.', (WidgetTester tester) async {
      const MaxLengthEnforcement enforcement = MaxLengthEnforcement.none;

      await setupWidget(tester, enforcement);

      final EditableTextState state = tester.state(find.byType(EditableText));

      state.updateEditingValue(const TextEditingValue(text: 'abc'));
      expect(state.currentTextEditingValue.text, 'abc');
      expect(state.currentTextEditingValue.composing, TextRange.empty);

      state.updateEditingValue(
        const TextEditingValue(text: 'abcdef', composing: TextRange(start: 3, end: 6)),
      );
      expect(state.currentTextEditingValue.text, 'abcdef');
      expect(state.currentTextEditingValue.composing, const TextRange(start: 3, end: 6));

      state.updateEditingValue(const TextEditingValue(text: 'abcdef'));
      expect(state.currentTextEditingValue.text, 'abcdef');
      expect(state.currentTextEditingValue.composing, TextRange.empty);
    });

    testWidgets('using enforced.', (WidgetTester tester) async {
      const MaxLengthEnforcement enforcement = MaxLengthEnforcement.enforced;

      await setupWidget(tester, enforcement);

      final EditableTextState state = tester.state(find.byType(EditableText));

      state.updateEditingValue(const TextEditingValue(text: 'abc'));
      expect(state.currentTextEditingValue.text, 'abc');
      expect(state.currentTextEditingValue.composing, TextRange.empty);

      state.updateEditingValue(
        const TextEditingValue(text: 'abcde', composing: TextRange(start: 3, end: 5)),
      );
      expect(state.currentTextEditingValue.text, 'abcde');
      expect(state.currentTextEditingValue.composing, const TextRange(start: 3, end: 5));

      state.updateEditingValue(
        const TextEditingValue(text: 'abcdef', composing: TextRange(start: 3, end: 6)),
      );
      expect(state.currentTextEditingValue.text, 'abcde');
      expect(state.currentTextEditingValue.composing, const TextRange(start: 3, end: 5));

      state.updateEditingValue(const TextEditingValue(text: 'abcdef'));
      expect(state.currentTextEditingValue.text, 'abcde');
      expect(state.currentTextEditingValue.composing, const TextRange(start: 3, end: 5));
    });

    testWidgets('using truncateAfterCompositionEnds.', (WidgetTester tester) async {
      const MaxLengthEnforcement enforcement = MaxLengthEnforcement.truncateAfterCompositionEnds;

      await setupWidget(tester, enforcement);

      final EditableTextState state = tester.state(find.byType(EditableText));

      state.updateEditingValue(const TextEditingValue(text: 'abc'));
      expect(state.currentTextEditingValue.text, 'abc');
      expect(state.currentTextEditingValue.composing, TextRange.empty);

      state.updateEditingValue(
        const TextEditingValue(text: 'abcde', composing: TextRange(start: 3, end: 5)),
      );
      expect(state.currentTextEditingValue.text, 'abcde');
      expect(state.currentTextEditingValue.composing, const TextRange(start: 3, end: 5));

      state.updateEditingValue(
        const TextEditingValue(text: 'abcdef', composing: TextRange(start: 3, end: 6)),
      );
      expect(state.currentTextEditingValue.text, 'abcdef');
      expect(state.currentTextEditingValue.composing, const TextRange(start: 3, end: 6));

      state.updateEditingValue(const TextEditingValue(text: 'abcdef'));
      expect(state.currentTextEditingValue.text, 'abcde');
      expect(state.currentTextEditingValue.composing, TextRange.empty);
    });

    testWidgets('using default behavior for different platforms.', (WidgetTester tester) async {
      await setupWidget(tester, null);

      final EditableTextState state = tester.state(find.byType(EditableText));

      state.updateEditingValue(const TextEditingValue(text: '侬好啊'));
      expect(state.currentTextEditingValue.text, '侬好啊');
      expect(state.currentTextEditingValue.composing, TextRange.empty);

      state.updateEditingValue(
        const TextEditingValue(text: '侬好啊旁友', composing: TextRange(start: 3, end: 5)),
      );
      expect(state.currentTextEditingValue.text, '侬好啊旁友');
      expect(state.currentTextEditingValue.composing, const TextRange(start: 3, end: 5));

      state.updateEditingValue(
        const TextEditingValue(text: '侬好啊旁友们', composing: TextRange(start: 3, end: 6)),
      );
      if (kIsWeb ||
          defaultTargetPlatform == TargetPlatform.iOS ||
          defaultTargetPlatform == TargetPlatform.macOS ||
          defaultTargetPlatform == TargetPlatform.linux ||
          defaultTargetPlatform == TargetPlatform.fuchsia) {
        expect(state.currentTextEditingValue.text, '侬好啊旁友们');
        expect(state.currentTextEditingValue.composing, const TextRange(start: 3, end: 6));
      } else {
        expect(state.currentTextEditingValue.text, '侬好啊旁友');
        expect(state.currentTextEditingValue.composing, const TextRange(start: 3, end: 5));
      }

      state.updateEditingValue(const TextEditingValue(text: '侬好啊旁友'));
      expect(state.currentTextEditingValue.text, '侬好啊旁友');
      expect(state.currentTextEditingValue.composing, TextRange.empty);
    });
  });

  testWidgets('disabled widget changes background color', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(home: Center(child: CupertinoTextField(enabled: false))),
    );

    var decoration =
        tester
                .widget<DecoratedBox>(
                  find.descendant(
                    of: find.byType(CupertinoTextField),
                    matching: find.byType(DecoratedBox),
                  ),
                )
                .decoration
            as BoxDecoration;

    expect(decoration.color!.value, 0xFFFAFAFA);

    await tester.pumpWidget(const CupertinoApp(home: Center(child: CupertinoTextField())));

    decoration =
        tester
                .widget<DecoratedBox>(
                  find.descendant(
                    of: find.byType(CupertinoTextField),
                    matching: find.byType(DecoratedBox),
                  ),
                )
                .decoration
            as BoxDecoration;

    expect(decoration.color!.value, CupertinoColors.white.value);

    await tester.pumpWidget(
      const CupertinoApp(
        theme: CupertinoThemeData(brightness: Brightness.dark),
        home: Center(child: CupertinoTextField(enabled: false)),
      ),
    );

    decoration =
        tester
                .widget<DecoratedBox>(
                  find.descendant(
                    of: find.byType(CupertinoTextField),
                    matching: find.byType(DecoratedBox),
                  ),
                )
                .decoration
            as BoxDecoration;

    expect(decoration.color!.value, 0xFF050505);
  });

  testWidgets('Disabled widget does not override background color', (WidgetTester tester) async {
    const backgroundColor = Color(0x0000000A);
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: CupertinoTextField(
            enabled: false,
            decoration: BoxDecoration(color: backgroundColor),
          ),
        ),
      ),
    );

    final decoration =
        tester
                .widget<DecoratedBox>(
                  find.descendant(
                    of: find.byType(CupertinoTextField),
                    matching: find.byType(DecoratedBox),
                  ),
                )
                .decoration
            as BoxDecoration;

    expect(decoration.color!.value, backgroundColor.value);
  });

  // Regression test for https://github.com/flutter/flutter/issues/78097.
  testWidgets('still gets disabled background color when decoration is null', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      const CupertinoApp(home: Center(child: CupertinoTextField(decoration: null, enabled: false))),
    );

    final Color disabledColor = tester
        .widget<ColoredBox>(
          find.descendant(of: find.byType(CupertinoTextField), matching: find.byType(ColoredBox)),
        )
        .color;
    expect(disabledColor, isSameColorAs(const Color(0xFFFAFAFA)));
  });

  testWidgets('autofill info has placeholder text', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(home: CupertinoTextField(placeholder: 'placeholder text')),
    );
    await tester.tap(find.byType(CupertinoTextField));

    expect(
      tester.testTextInput.setClientArgs?['autofill'],
      containsPair('hintText', 'placeholder text'),
    );
  });

  testWidgets('textDirection is passed to EditableText', (WidgetTester tester) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(child: CupertinoTextField(textDirection: TextDirection.ltr)),
      ),
    );

    final EditableText ltrWidget = tester.widget(find.byType(EditableText));
    expect(ltrWidget.textDirection, TextDirection.ltr);

    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(child: CupertinoTextField(textDirection: TextDirection.rtl)),
      ),
    );

    final EditableText rtlWidget = tester.widget(find.byType(EditableText));
    expect(rtlWidget.textDirection, TextDirection.rtl);
  });

  testWidgets('clipBehavior has expected defaults', (WidgetTester tester) async {
    await tester.pumpWidget(const CupertinoApp(home: CupertinoTextField()));

    final CupertinoTextField textField = tester.firstWidget(find.byType(CupertinoTextField));
    expect(textField.clipBehavior, Clip.hardEdge);
  });

  testWidgets('Overflow clipBehavior none golden', (WidgetTester tester) async {
    final controller = OverflowWidgetTextEditingController();
    addTearDown(controller.dispose);
    final Widget widget = CupertinoApp(
      home: RepaintBoundary(
        key: const ValueKey<int>(1),
        child: SizedBox(
          height: 200.0,
          width: 200.0,
          child: Center(
            child: SizedBox(
              // Make sure the input field is not high enough for the WidgetSpan.
              height: 50,
              child: CupertinoTextField(controller: controller, clipBehavior: Clip.none),
            ),
          ),
        ),
      ),
    );
    await tester.pumpWidget(widget);

    final CupertinoTextField textField = tester.firstWidget(find.byType(CupertinoTextField));
    expect(textField.clipBehavior, Clip.none);

    final EditableText editableText = tester.firstWidget(find.byType(EditableText));
    expect(editableText.clipBehavior, Clip.none);

    await expectLater(
      find.byKey(const ValueKey<int>(1)),
      matchesGoldenFile('overflow_clipbehavior_none.cupertino.0.png'),
    );
  });

  testWidgets(
    'can shift + tap to select with a keyboard (Apple platforms)',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      await tester.tapAt(textOffsetToPosition(tester, 13));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 13);
      expect(controller.selection.extentOffset, 13);

      await tester.pump(kDoubleTapTimeout);
      await tester.sendKeyDownEvent(LogicalKeyboardKey.shift);
      await tester.tapAt(textOffsetToPosition(tester, 20));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 13);
      expect(controller.selection.extentOffset, 20);

      await tester.pump(kDoubleTapTimeout);
      await tester.tapAt(textOffsetToPosition(tester, 23));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 13);
      expect(controller.selection.extentOffset, 23);

      await tester.pump(kDoubleTapTimeout);
      await tester.tapAt(textOffsetToPosition(tester, 4));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 4);

      await tester.sendKeyUpEvent(LogicalKeyboardKey.shift);
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 4);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'can shift + tap to select with a keyboard (non-Apple platforms)',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      await tester.tapAt(textOffsetToPosition(tester, 13));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 13);
      expect(controller.selection.extentOffset, 13);

      await tester.pump(kDoubleTapTimeout);
      await tester.sendKeyDownEvent(LogicalKeyboardKey.shift);
      await tester.tapAt(textOffsetToPosition(tester, 20));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 13);
      expect(controller.selection.extentOffset, 20);

      await tester.pump(kDoubleTapTimeout);
      await tester.tapAt(textOffsetToPosition(tester, 23));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 13);
      expect(controller.selection.extentOffset, 23);

      await tester.pump(kDoubleTapTimeout);
      await tester.tapAt(textOffsetToPosition(tester, 4));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 13);
      expect(controller.selection.extentOffset, 4);

      await tester.sendKeyUpEvent(LogicalKeyboardKey.shift);
      expect(controller.selection.baseOffset, 13);
      expect(controller.selection.extentOffset, 4);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.android,
      TargetPlatform.fuchsia,
      TargetPlatform.linux,
      TargetPlatform.windows,
    }),
  );

  testWidgets('shift tapping an unfocused field', (WidgetTester tester) async {
    final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
    addTearDown(controller.dispose);
    final focusNode = FocusNode();
    addTearDown(focusNode.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(controller: controller, focusNode: focusNode),
        ),
      ),
    );

    expect(focusNode.hasFocus, isFalse);

    // Put the cursor at the end of the field.
    await tester.tapAt(textOffsetToPosition(tester, controller.text.length));
    await tester.pump(kDoubleTapTimeout);
    await tester.pumpAndSettle();
    expect(focusNode.hasFocus, isTrue);
    expect(controller.selection.baseOffset, 35);
    expect(controller.selection.extentOffset, 35);

    // Unfocus the field, but the selection remains.
    focusNode.unfocus();
    await tester.pumpAndSettle();
    expect(focusNode.hasFocus, isFalse);
    expect(controller.selection.baseOffset, 35);
    expect(controller.selection.extentOffset, 35);

    // Shift tap in the middle of the field.
    await tester.sendKeyDownEvent(LogicalKeyboardKey.shift);
    await tester.tapAt(textOffsetToPosition(tester, 20));
    await tester.pumpAndSettle();
    expect(focusNode.hasFocus, isTrue);
    switch (defaultTargetPlatform) {
      // Apple platforms start the selection from 0.
      case TargetPlatform.iOS:
      case TargetPlatform.macOS:
        expect(controller.selection.baseOffset, 0);

      // Other platforms start from the previous selection.
      case TargetPlatform.android:
      case TargetPlatform.fuchsia:
      case TargetPlatform.linux:
      case TargetPlatform.windows:
        expect(controller.selection.baseOffset, 35);
    }
    expect(controller.selection.extentOffset, 20);
  }, variant: TargetPlatformVariant.all());

  testWidgets(
    'can shift + tap + drag to select with a keyboard (Apple platforms)',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      final isTargetPlatformIOS = defaultTargetPlatform == TargetPlatform.iOS;
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      await tester.tapAt(textOffsetToPosition(tester, 8));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 8);

      await tester.pump(kDoubleTapTimeout);
      await tester.sendKeyDownEvent(LogicalKeyboardKey.shift);
      final TestGesture gesture = await tester.startGesture(
        textOffsetToPosition(tester, 23),
        pointer: 7,
        kind: PointerDeviceKind.mouse,
      );
      await tester.pumpAndSettle();
      if (isTargetPlatformIOS) {
        await gesture.up();
        // Not a double tap + drag.
        await tester.pumpAndSettle(kDoubleTapTimeout);
      }
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 23);

      // Expand the selection a bit.
      if (isTargetPlatformIOS) {
        await gesture.down(textOffsetToPosition(tester, 24));
        await tester.pumpAndSettle();
      }
      await gesture.moveTo(textOffsetToPosition(tester, 28));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 28);

      // Move back to the original selection.
      await gesture.moveTo(textOffsetToPosition(tester, 23));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 23);

      // Collapse the selection.
      await gesture.moveTo(textOffsetToPosition(tester, 8));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 8);

      // Invert the selection. The base jumps to the original extent.
      await gesture.moveTo(textOffsetToPosition(tester, 7));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 7);

      // Continuing to move in the inverted direction expands the selection.
      await gesture.moveTo(textOffsetToPosition(tester, 4));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 4);

      // Move back to the original base.
      await gesture.moveTo(textOffsetToPosition(tester, 8));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 8);

      // Continue to move past the original base, which will cause the selection
      // to invert back to the original orientation.
      await gesture.moveTo(textOffsetToPosition(tester, 9));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 9);

      // Continuing to select in this direction selects just like it did
      // originally.
      await gesture.moveTo(textOffsetToPosition(tester, 24));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 24);

      // Releasing the shift key has no effect; the selection continues as the
      // mouse continues to move.
      await tester.sendKeyUpEvent(LogicalKeyboardKey.shift);
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 24);
      await gesture.moveTo(textOffsetToPosition(tester, 26));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 26);

      await gesture.up();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 26);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'can shift + tap + drag to select with a keyboard (non-Apple platforms)',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      final bool isTargetPlatformMobile =
          defaultTargetPlatform == TargetPlatform.android ||
          defaultTargetPlatform == TargetPlatform.fuchsia;
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      await tester.tapAt(textOffsetToPosition(tester, 8));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 8);

      await tester.pump(kDoubleTapTimeout);
      await tester.sendKeyDownEvent(LogicalKeyboardKey.shift);
      final TestGesture gesture = await tester.startGesture(
        textOffsetToPosition(tester, 23),
        pointer: 7,
        kind: PointerDeviceKind.mouse,
      );
      await tester.pumpAndSettle();
      if (isTargetPlatformMobile) {
        await gesture.up();
        // Not a double tap + drag.
        await tester.pumpAndSettle(kDoubleTapTimeout);
      }
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 23);

      // Expand the selection a bit.
      if (isTargetPlatformMobile) {
        await gesture.down(textOffsetToPosition(tester, 24));
        await tester.pumpAndSettle();
      }
      await gesture.moveTo(textOffsetToPosition(tester, 28));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 28);

      // Move back to the original selection.
      await gesture.moveTo(textOffsetToPosition(tester, 23));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 23);

      // Collapse the selection.
      await gesture.moveTo(textOffsetToPosition(tester, 8));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 8);

      // Invert the selection. The original selection is not restored like on iOS
      // and Mac.
      await gesture.moveTo(textOffsetToPosition(tester, 7));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 7);

      // Continuing to move in the inverted direction expands the selection.
      await gesture.moveTo(textOffsetToPosition(tester, 4));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 4);

      // Move back to the original base.
      await gesture.moveTo(textOffsetToPosition(tester, 8));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 8);

      // Continue to move past the original base.
      await gesture.moveTo(textOffsetToPosition(tester, 9));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 9);

      // Continuing to select in this direction selects just like it did
      // originally.
      await gesture.moveTo(textOffsetToPosition(tester, 24));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 24);

      // Releasing the shift key has no effect; the selection continues as the
      // mouse continues to move.
      await tester.sendKeyUpEvent(LogicalKeyboardKey.shift);
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 24);
      await gesture.moveTo(textOffsetToPosition(tester, 26));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 26);

      await gesture.up();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 26);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.linux,
      TargetPlatform.android,
      TargetPlatform.fuchsia,
      TargetPlatform.windows,
    }),
  );

  testWidgets(
    'can shift + tap + drag to select with a keyboard, reversed (Apple platforms)',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      final isTargetPlatformIOS = defaultTargetPlatform == TargetPlatform.iOS;
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      // Make a selection from right to left.
      await tester.tapAt(textOffsetToPosition(tester, 23));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 23);
      await tester.pump(kDoubleTapTimeout);
      await tester.sendKeyDownEvent(LogicalKeyboardKey.shift);
      final TestGesture gesture = await tester.startGesture(
        textOffsetToPosition(tester, 8),
        pointer: 7,
        kind: PointerDeviceKind.mouse,
      );
      await tester.pumpAndSettle();
      if (isTargetPlatformIOS) {
        await gesture.up();
        // Not a double tap + drag.
        await tester.pumpAndSettle(kDoubleTapTimeout);
      }
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 8);

      // Expand the selection a bit.
      if (isTargetPlatformIOS) {
        await gesture.down(textOffsetToPosition(tester, 7));
        await tester.pumpAndSettle();
      }
      await gesture.moveTo(textOffsetToPosition(tester, 5));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 5);

      // Move back to the original selection.
      await gesture.moveTo(textOffsetToPosition(tester, 8));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 8);

      // Collapse the selection.
      await gesture.moveTo(textOffsetToPosition(tester, 23));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 23);

      // Invert the selection. The base jumps to the original extent.
      await gesture.moveTo(textOffsetToPosition(tester, 24));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 24);

      // Continuing to move in the inverted direction expands the selection.
      await gesture.moveTo(textOffsetToPosition(tester, 27));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 27);

      // Move back to the original base.
      await gesture.moveTo(textOffsetToPosition(tester, 23));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 8);
      expect(controller.selection.extentOffset, 23);

      // Continue to move past the original base, which will cause the selection
      // to invert back to the original orientation.
      await gesture.moveTo(textOffsetToPosition(tester, 22));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 22);

      // Continuing to select in this direction selects just like it did
      // originally.
      await gesture.moveTo(textOffsetToPosition(tester, 16));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 16);

      // Releasing the shift key has no effect; the selection continues as the
      // mouse continues to move.
      await tester.sendKeyUpEvent(LogicalKeyboardKey.shift);
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 16);
      await gesture.moveTo(textOffsetToPosition(tester, 14));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 14);

      await gesture.up();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 14);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.iOS,
      TargetPlatform.macOS,
    }),
  );

  testWidgets(
    'can shift + tap + drag to select with a keyboard, reversed (non-Apple platforms)',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'Atwater Peel Sherbrooke Bonaventure');
      addTearDown(controller.dispose);
      final bool isTargetPlatformMobile =
          defaultTargetPlatform == TargetPlatform.android ||
          defaultTargetPlatform == TargetPlatform.fuchsia;
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      // Make a selection from right to left.
      await tester.tapAt(textOffsetToPosition(tester, 23));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 23);
      await tester.pump(kDoubleTapTimeout);
      await tester.sendKeyDownEvent(LogicalKeyboardKey.shift);
      final TestGesture gesture = await tester.startGesture(
        textOffsetToPosition(tester, 8),
        pointer: 7,
        kind: PointerDeviceKind.mouse,
      );
      await tester.pumpAndSettle();
      if (isTargetPlatformMobile) {
        await gesture.up();
        // Not a double tap + drag.
        await tester.pumpAndSettle(kDoubleTapTimeout);
      }
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 8);

      // Expand the selection a bit.
      if (isTargetPlatformMobile) {
        await gesture.down(textOffsetToPosition(tester, 7));
        await tester.pumpAndSettle();
      }
      await gesture.moveTo(textOffsetToPosition(tester, 5));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 5);

      // Move back to the original selection.
      await gesture.moveTo(textOffsetToPosition(tester, 8));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 8);

      // Collapse the selection.
      await gesture.moveTo(textOffsetToPosition(tester, 23));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 23);

      // Invert the selection. The selection is not restored like it would be on
      // iOS and Mac.
      await gesture.moveTo(textOffsetToPosition(tester, 24));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 24);

      // Continuing to move in the inverted direction expands the selection.
      await gesture.moveTo(textOffsetToPosition(tester, 27));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 27);

      // Move back to the original base.
      await gesture.moveTo(textOffsetToPosition(tester, 23));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 23);

      // Continue to move past the original base.
      await gesture.moveTo(textOffsetToPosition(tester, 22));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 22);

      // Continuing to select in this direction selects just like it did
      // originally.
      await gesture.moveTo(textOffsetToPosition(tester, 16));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 16);

      // Releasing the shift key has no effect; the selection continues as the
      // mouse continues to move.
      await tester.sendKeyUpEvent(LogicalKeyboardKey.shift);
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 16);
      await gesture.moveTo(textOffsetToPosition(tester, 14));
      await tester.pumpAndSettle();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 14);

      await gesture.up();
      expect(controller.selection.baseOffset, 23);
      expect(controller.selection.extentOffset, 14);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.linux,
      TargetPlatform.android,
      TargetPlatform.fuchsia,
      TargetPlatform.windows,
    }),
  );

  // Regression test for https://github.com/flutter/flutter/issues/101587.
  testWidgets(
    'Right clicking menu behavior',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'blah1 blah2');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      // Initially, the menu is not shown and there is no selection.
      expect(find.byType(CupertinoButton), findsNothing);
      expect(controller.selection, const TextSelection(baseOffset: -1, extentOffset: -1));

      final Offset midBlah1 = textOffsetToPosition(tester, 2);
      final Offset midBlah2 = textOffsetToPosition(tester, 8);

      // Right click the second word.
      final TestGesture gesture = await tester.startGesture(
        midBlah2,
        kind: PointerDeviceKind.mouse,
        buttons: kSecondaryMouseButton,
      );
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle();

      switch (defaultTargetPlatform) {
        case TargetPlatform.iOS:
        case TargetPlatform.macOS:
          expect(controller.selection, const TextSelection(baseOffset: 6, extentOffset: 11));
          expect(find.text('Cut'), findsOneWidget);
          expect(find.text('Copy'), findsOneWidget);
          expect(find.text('Paste'), findsOneWidget);

        case TargetPlatform.android:
        case TargetPlatform.fuchsia:
        case TargetPlatform.linux:
        case TargetPlatform.windows:
          expect(controller.selection, const TextSelection.collapsed(offset: 8));
          expect(find.text('Cut'), findsNothing);
          expect(find.text('Copy'), findsNothing);
          expect(find.text('Paste'), findsOneWidget);
      }

      // Right click the first word.
      await gesture.down(midBlah1);
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle();

      switch (defaultTargetPlatform) {
        case TargetPlatform.iOS:
        case TargetPlatform.macOS:
          expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 5));
          expect(find.text('Cut'), findsOneWidget);
          expect(find.text('Copy'), findsOneWidget);
          expect(find.text('Paste'), findsOneWidget);

        case TargetPlatform.android:
        case TargetPlatform.fuchsia:
        case TargetPlatform.linux:
        case TargetPlatform.windows:
          expect(controller.selection, const TextSelection.collapsed(offset: 8));
          expect(find.text('Cut'), findsNothing);
          expect(find.text('Copy'), findsNothing);
          expect(find.text('Paste'), findsNothing);
      }
    },
    variant: TargetPlatformVariant.all(),
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  testWidgets(
    'Selection handles should not show when using a mouse on non-Apple platforms',
    (WidgetTester tester) async {
      // Regression test for https://github.com/flutter/flutter/pull/168252.
      final controller = TextEditingController(text: 'blah1 blah2');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      // Initially, the menu is not shown and there is no selection.
      expectNoCupertinoToolbar();
      expect(controller.selection, const TextSelection(baseOffset: -1, extentOffset: -1));

      final Offset secondBlah = textOffsetToPosition(tester, 8);

      // Right click the second word using a mouse.
      final TestGesture gesture = await tester.startGesture(
        secondBlah,
        kind: PointerDeviceKind.mouse,
        buttons: kSecondaryMouseButton,
      );
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle();

      switch (defaultTargetPlatform) {
        case TargetPlatform.iOS:
        case TargetPlatform.macOS:
          return;
        case TargetPlatform.android:
        case TargetPlatform.fuchsia:
        case TargetPlatform.linux:
        case TargetPlatform.windows:
          expect(controller.selection, const TextSelection.collapsed(offset: 8));
          expect(find.text('Cut'), findsNothing);
          expect(find.text('Copy'), findsNothing);
          expect(find.text('Paste'), findsOneWidget);
          expect(find.text('Select All'), findsOneWidget);
      }

      // Press select all.
      await tester.tap(find.text('Select All'), kind: PointerDeviceKind.mouse);
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 11));

      // Selection handles are hidden.
      final EditableTextState state = tester.state<EditableTextState>(find.byType(EditableText));
      expect(state.selectionOverlay, isNotNull);
      expect(state.selectionOverlay!.handlesAreVisible, isFalse);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{
      TargetPlatform.android,
      TargetPlatform.fuchsia,
      TargetPlatform.linux,
      TargetPlatform.windows,
    }),
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  testWidgets(
    'Selection handles should not show when using a mouse on Apple platforms using Flutter context menu',
    (WidgetTester tester) async {
      // Regression test for https://github.com/flutter/flutter/pull/168252.
      final controller = TextEditingController(text: 'blah1 blah2');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      // Initially, the menu is not shown and there is no selection.
      expectNoCupertinoToolbar();
      expect(controller.selection, const TextSelection(baseOffset: -1, extentOffset: -1));

      final Offset firstBlah = textOffsetToPosition(tester, 5);

      // Click at the end of blah1.
      await tester.tapAt(firstBlah, kind: PointerDeviceKind.mouse);
      await tester.pumpAndSettle();

      // Right click the same position to reveal the context menu.
      await tester.tapAt(firstBlah, kind: PointerDeviceKind.mouse, buttons: kSecondaryMouseButton);
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection.collapsed(offset: 5));
      expectCupertinoToolbarForCollapsedSelection();

      // Press select all.
      await tester.tap(find.text('Select All'), kind: PointerDeviceKind.mouse);
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 11));

      // Selection handles are hidden.
      final EditableTextState state = tester.state<EditableTextState>(find.byType(EditableText));
      expect(state.selectionOverlay, isNotNull);
      expect(state.selectionOverlay!.handlesAreVisible, isFalse);
    },
    variant: TargetPlatformVariant.only(TargetPlatform.iOS),
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
  );

  group('Right click focus', () {
    testWidgets('Can right click to focus multiple times', (WidgetTester tester) async {
      // Regression test for https://github.com/flutter/flutter/pull/103228
      final focusNode1 = FocusNode();
      final focusNode2 = FocusNode();
      addTearDown(focusNode1.dispose);
      addTearDown(focusNode2.dispose);
      final key1 = UniqueKey();
      final key2 = UniqueKey();
      await tester.pumpWidget(
        CupertinoApp(
          home: Column(
            children: <Widget>[
              CupertinoTextField(key: key1, focusNode: focusNode1),
              // This spacer prevents the context menu in one field from
              // overlapping with the other field.
              const SizedBox(height: 100.0),
              CupertinoTextField(key: key2, focusNode: focusNode2),
            ],
          ),
        ),
      );

      // Interact with the field to establish the input connection.
      await tester.tapAt(tester.getCenter(find.byKey(key1)), buttons: kSecondaryMouseButton);
      await tester.pump();

      expect(focusNode1.hasFocus, isTrue);
      expect(focusNode2.hasFocus, isFalse);

      await tester.tapAt(tester.getCenter(find.byKey(key2)), buttons: kSecondaryMouseButton);
      await tester.pump();

      expect(focusNode1.hasFocus, isFalse);
      expect(focusNode2.hasFocus, isTrue);

      await tester.tapAt(tester.getCenter(find.byKey(key1)), buttons: kSecondaryMouseButton);
      await tester.pump();

      expect(focusNode1.hasFocus, isTrue);
      expect(focusNode2.hasFocus, isFalse);
    });

    testWidgets(
      'Can right click to focus on previously selected word on Apple platforms',
      (WidgetTester tester) async {
        final focusNode1 = FocusNode();
        final focusNode2 = FocusNode();
        addTearDown(focusNode1.dispose);
        addTearDown(focusNode2.dispose);
        final controller = TextEditingController(text: 'first second');
        addTearDown(controller.dispose);
        final key1 = UniqueKey();
        await tester.pumpWidget(
          CupertinoApp(
            home: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                CupertinoTextField(key: key1, controller: controller, focusNode: focusNode1),
                Focus(focusNode: focusNode2, child: const Text('focusable')),
              ],
            ),
          ),
        );

        // Interact with the field to establish the input connection.
        await tester.tapAt(tester.getCenter(find.byKey(key1)), buttons: kSecondaryMouseButton);
        await tester.pump();

        expect(focusNode1.hasFocus, isTrue);
        expect(focusNode2.hasFocus, isFalse);

        // Select the second word.
        controller.selection = const TextSelection(baseOffset: 6, extentOffset: 12);
        await tester.pump();

        expect(focusNode1.hasFocus, isTrue);
        expect(focusNode2.hasFocus, isFalse);
        expect(controller.selection.isCollapsed, isFalse);
        expect(controller.selection.baseOffset, 6);
        expect(controller.selection.extentOffset, 12);

        // Unfocus the first field.
        focusNode2.requestFocus();
        await tester.pumpAndSettle();

        expect(focusNode1.hasFocus, isFalse);
        expect(focusNode2.hasFocus, isTrue);

        // Right click the second word in the first field, which is still selected
        // even though the selection is not visible.
        await tester.tapAt(textOffsetToPosition(tester, 8), buttons: kSecondaryMouseButton);
        await tester.pump();

        expect(focusNode1.hasFocus, isTrue);
        expect(focusNode2.hasFocus, isFalse);
        expect(controller.selection.baseOffset, 6);
        expect(controller.selection.extentOffset, 12);

        // Select everything.
        controller.selection = const TextSelection(baseOffset: 0, extentOffset: 12);
        await tester.pump();

        expect(focusNode1.hasFocus, isTrue);
        expect(focusNode2.hasFocus, isFalse);
        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 12);

        // Unfocus the first field.
        focusNode2.requestFocus();
        await tester.pumpAndSettle();

        // Right click the first word in the first field.
        await tester.tapAt(textOffsetToPosition(tester, 2), buttons: kSecondaryMouseButton);
        await tester.pump();

        expect(focusNode1.hasFocus, isTrue);
        expect(focusNode2.hasFocus, isFalse);
        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 5);
      },
      variant: const TargetPlatformVariant(<TargetPlatform>{
        TargetPlatform.iOS,
        TargetPlatform.macOS,
      }),
    );
  });

  group('context menu', () {
    testWidgets(
      'builds CupertinoAdaptiveTextSelectionToolbar by default',
      (WidgetTester tester) async {
        final controller = TextEditingController(text: '');
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            home: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[CupertinoTextField(controller: controller)],
            ),
          ),
        );

        await tester.pump(); // Wait for autofocus to take effect.

        expect(find.byType(CupertinoAdaptiveTextSelectionToolbar), findsNothing);

        // Long-press to bring up the context menu.
        final Finder textFinder = find.byType(EditableText);
        await tester.longPress(textFinder);
        tester.state<EditableTextState>(textFinder).showToolbar();
        await tester.pumpAndSettle();

        expect(find.byType(CupertinoAdaptiveTextSelectionToolbar), findsOneWidget);
      },
      skip: kIsWeb, // [intended] on web the browser handles the context menu.
    );

    testWidgets(
      'contextMenuBuilder is used in place of the default text selection toolbar',
      (WidgetTester tester) async {
        final GlobalKey key = GlobalKey();
        final controller = TextEditingController(text: '');
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            home: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: <Widget>[
                CupertinoTextField(
                  controller: controller,
                  contextMenuBuilder: (BuildContext context, EditableTextState editableTextState) {
                    return Placeholder(key: key);
                  },
                ),
              ],
            ),
          ),
        );

        await tester.pump(); // Wait for autofocus to take effect.

        expect(find.byKey(key), findsNothing);

        // Long-press to bring up the context menu.
        final Finder textFinder = find.byType(EditableText);
        await tester.longPress(textFinder);
        tester.state<EditableTextState>(textFinder).showToolbar();
        await tester.pumpAndSettle();

        expect(find.byKey(key), findsOneWidget);
      },
      skip: kIsWeb, // [intended] on web the browser handles the context menu.
    );

    testWidgets(
      'iOS uses the system context menu by default if supported',
      (WidgetTester tester) async {
        tester.platformDispatcher.supportsShowingSystemContextMenu = true;
        addTearDown(() {
          tester.platformDispatcher.resetSupportsShowingSystemContextMenu();
          tester.view.reset();
        });

        final controller = TextEditingController(text: 'one two three');
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          // Don't wrap with the global View so that the change to
          // platformDispatcher is read.
          wrapWithView: false,
          View(
            view: tester.view,
            child: CupertinoApp(home: CupertinoTextField(controller: controller)),
          ),
        );

        // No context menu shown.
        expect(find.byType(CupertinoAdaptiveTextSelectionToolbar), findsNothing);
        expect(find.byType(SystemContextMenu), findsNothing);

        // Double tap to select the first word and show the menu.
        await tester.tapAt(textOffsetToPosition(tester, 1));
        await tester.pump(const Duration(milliseconds: 50));
        await tester.tapAt(textOffsetToPosition(tester, 1));
        await tester.pump(SelectionOverlay.fadeDuration);

        expect(find.byType(CupertinoAdaptiveTextSelectionToolbar), findsNothing);
        expect(find.byType(SystemContextMenu), findsOneWidget);
      },
      skip: kIsWeb, // [intended] on web the browser handles the context menu.
      variant: TargetPlatformVariant.only(TargetPlatform.iOS),
    );

    testWidgets(
      'iOS system context menu does not hide selection handles on onSystemHide',
      (WidgetTester tester) async {
        tester.platformDispatcher.supportsShowingSystemContextMenu = true;
        addTearDown(() {
          tester.platformDispatcher.resetSupportsShowingSystemContextMenu();
          tester.view.reset();
        });

        final controller = TextEditingController(text: 'one two three');
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          // Don't wrap with the global View so that the change to
          // platformDispatcher is read.
          wrapWithView: false,
          View(
            view: tester.view,
            child: CupertinoApp(home: CupertinoTextField(controller: controller)),
          ),
        );

        // No context menu shown.
        expect(find.byType(SystemContextMenu), findsNothing);

        // Double tap to select the first word and show the menu.
        await tester.tapAt(textOffsetToPosition(tester, 1));
        await tester.pump(const Duration(milliseconds: 50));
        await tester.tapAt(textOffsetToPosition(tester, 1));
        await tester.pump(SelectionOverlay.fadeDuration);

        expect(find.byType(SystemContextMenu), findsOneWidget);

        // Simulate system hiding the menu.
        final ByteData? messageBytes = const JSONMessageCodec().encodeMessage(<String, dynamic>{
          'method': 'ContextMenu.onDismissSystemContextMenu',
        });

        await tester.binding.defaultBinaryMessenger.handlePlatformMessage(
          'flutter/platform',
          messageBytes,
          (ByteData? data) {},
        );

        await tester.pumpAndSettle();

        expect(find.byType(SystemContextMenu), findsNothing);

        // Selection handles are not hidden.
        final Iterable<RenderBox> boxes = tester.renderObjectList<RenderBox>(
          find.descendant(
            of: find.byWidgetPredicate(
              (Widget w) => '${w.runtimeType}' == '_SelectionHandleOverlay',
            ),
            matching: find.byType(CustomPaint),
          ),
        );
        expect(boxes.length, 2);
      },
      skip: kIsWeb, // [intended] on web the browser handles the context menu.
      variant: TargetPlatformVariant.only(TargetPlatform.iOS),
    );
  });

  group('magnifier', () {
    late ValueNotifier<MagnifierInfo> magnifierInfo;
    final Widget fakeMagnifier = Container(key: UniqueKey());

    group('magnifier builder', () {
      testWidgets('should build custom magnifier if given', (WidgetTester tester) async {
        final Widget customMagnifier = Container(key: UniqueKey());
        final defaultCupertinoTextField = CupertinoTextField(
          magnifierConfiguration: TextMagnifierConfiguration(
            magnifierBuilder: (_, _, _) => customMagnifier,
          ),
        );

        await tester.pumpWidget(const CupertinoApp(home: Placeholder()));

        final BuildContext context = tester.firstElement(find.byType(Placeholder));

        final magnifierInfo = ValueNotifier<MagnifierInfo>(MagnifierInfo.empty);
        addTearDown(magnifierInfo.dispose);
        expect(
          defaultCupertinoTextField.magnifierConfiguration!.magnifierBuilder(
            context,
            MagnifierController(),
            magnifierInfo,
          ),
          isA<Widget>().having((Widget widget) => widget.key, 'key', equals(customMagnifier.key)),
        );
      });

      group('defaults', () {
        testWidgets(
          'should build CupertinoMagnifier on iOS and Android',
          (WidgetTester tester) async {
            await tester.pumpWidget(const CupertinoApp(home: CupertinoTextField()));

            final BuildContext context = tester.firstElement(find.byType(CupertinoTextField));
            final EditableText editableText = tester.widget(find.byType(EditableText));

            final magnifierInfo = ValueNotifier<MagnifierInfo>(MagnifierInfo.empty);
            addTearDown(magnifierInfo.dispose);
            expect(
              editableText.magnifierConfiguration.magnifierBuilder(
                context,
                MagnifierController(),
                magnifierInfo,
              ),
              isA<CupertinoTextMagnifier>(),
            );
          },
          variant: const TargetPlatformVariant(<TargetPlatform>{
            TargetPlatform.iOS,
            TargetPlatform.android,
          }),
        );
      });

      testWidgets(
        'should build nothing on all platforms but iOS and Android',
        (WidgetTester tester) async {
          await tester.pumpWidget(const CupertinoApp(home: CupertinoTextField()));

          final BuildContext context = tester.firstElement(find.byType(CupertinoTextField));
          final EditableText editableText = tester.widget(find.byType(EditableText));

          final magnifierInfo = ValueNotifier<MagnifierInfo>(MagnifierInfo.empty);
          addTearDown(magnifierInfo.dispose);
          expect(
            editableText.magnifierConfiguration.magnifierBuilder(
              context,
              MagnifierController(),
              magnifierInfo,
            ),
            isNull,
          );
        },
        variant: TargetPlatformVariant.all(
          excluding: <TargetPlatform>{TargetPlatform.iOS, TargetPlatform.android},
        ),
      );
    });

    testWidgets(
      'Can drag handles to show, unshow, and update magnifier',
      (WidgetTester tester) async {
        final controller = TextEditingController();
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            home: CupertinoPageScaffold(
              child: Builder(
                builder: (BuildContext context) => CupertinoTextField(
                  dragStartBehavior: DragStartBehavior.down,
                  controller: controller,
                  magnifierConfiguration: TextMagnifierConfiguration(
                    magnifierBuilder:
                        (
                          _,
                          MagnifierController controller,
                          ValueNotifier<MagnifierInfo> localMagnifierInfo,
                        ) {
                          magnifierInfo = localMagnifierInfo;
                          return fakeMagnifier;
                        },
                  ),
                ),
              ),
            ),
          ),
        );

        const testValue = 'abc def ghi';
        await tester.enterText(find.byType(CupertinoTextField), testValue);

        // Double tap the 'e' to select 'def'.
        await tester.tapAt(textOffsetToPosition(tester, testValue.indexOf('e')));
        await tester.pump(const Duration(milliseconds: 30));
        await tester.tapAt(textOffsetToPosition(tester, testValue.indexOf('e')));
        await tester.pump(const Duration(milliseconds: 30));

        final TextSelection selection = controller.selection;

        final RenderEditable renderEditable = findRenderEditable(tester);
        final List<TextSelectionPoint> endpoints = globalize(
          renderEditable.getEndpointsForSelection(selection),
          renderEditable,
        );

        // Drag the right handle 2 letters to the right.
        final Offset handlePos = endpoints.last.point + const Offset(1.0, 1.0);
        final TestGesture gesture = await tester.startGesture(handlePos, pointer: 7);

        Offset? firstDragGesturePosition;

        await gesture.moveTo(textOffsetToPosition(tester, testValue.length - 2));
        await tester.pump();

        expect(find.byKey(fakeMagnifier.key!), findsOneWidget);
        firstDragGesturePosition = magnifierInfo.value.globalGesturePosition;

        await gesture.moveTo(textOffsetToPosition(tester, testValue.length));
        await tester.pump();

        // Expect the position the magnifier gets to have moved.
        expect(firstDragGesturePosition, isNot(magnifierInfo.value.globalGesturePosition));

        await gesture.up();
        await tester.pump();

        expect(find.byKey(fakeMagnifier.key!), findsNothing);
      },
      variant: TargetPlatformVariant.only(TargetPlatform.iOS),
    );

    testWidgets(
      'Can drag to show, unshow, and update magnifier',
      (WidgetTester tester) async {
        final controller = TextEditingController();
        addTearDown(controller.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
                magnifierConfiguration: TextMagnifierConfiguration(
                  magnifierBuilder:
                      (
                        _,
                        MagnifierController controller,
                        ValueNotifier<MagnifierInfo> localMagnifierInfo,
                      ) {
                        magnifierInfo = localMagnifierInfo;
                        return fakeMagnifier;
                      },
                ),
              ),
            ),
          ),
        );

        const testValue = 'abc def ghi';
        await tester.enterText(find.byType(CupertinoTextField), testValue);
        await tester.pumpAndSettle();

        // Tap at '|a' to move the selection to position 0.
        await tester.tapAt(textOffsetToPosition(tester, 0));
        await tester.pumpAndSettle(kDoubleTapTimeout);
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 0);
        expect(find.byKey(fakeMagnifier.key!), findsNothing);

        // Start a drag gesture to move the selection to the dragged position, showing
        // the magnifier.
        final TestGesture gesture = await tester.startGesture(textOffsetToPosition(tester, 0));
        await tester.pump();

        await gesture.moveTo(textOffsetToPosition(tester, 5));
        await tester.pump();
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 5);
        expect(find.byKey(fakeMagnifier.key!), findsOneWidget);

        Offset firstDragGesturePosition = magnifierInfo.value.globalGesturePosition;

        await gesture.moveTo(textOffsetToPosition(tester, 10));
        await tester.pump();
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 10);
        expect(find.byKey(fakeMagnifier.key!), findsOneWidget);
        // Expect the position the magnifier gets to have moved.
        expect(firstDragGesturePosition, isNot(magnifierInfo.value.globalGesturePosition));

        // The magnifier should hide when the drag ends.
        await gesture.up();
        await tester.pump();
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 10);
        expect(find.byKey(fakeMagnifier.key!), findsNothing);

        // Start a double-tap select the word at the tapped position.
        await gesture.down(textOffsetToPosition(tester, 1));
        await tester.pump();
        await gesture.up();
        await tester.pump();

        await gesture.down(textOffsetToPosition(tester, 1));
        await tester.pumpAndSettle();
        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 3);

        // Start a drag gesture to extend the selection word-by-word, showing the
        // magnifier.
        await gesture.moveTo(textOffsetToPosition(tester, 5));
        await tester.pump();
        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 7);
        expect(find.byKey(fakeMagnifier.key!), findsOneWidget);

        firstDragGesturePosition = magnifierInfo.value.globalGesturePosition;

        await gesture.moveTo(textOffsetToPosition(tester, 10));
        await tester.pump();
        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 11);
        expect(find.byKey(fakeMagnifier.key!), findsOneWidget);
        // Expect the position the magnifier gets to have moved.
        expect(firstDragGesturePosition, isNot(magnifierInfo.value.globalGesturePosition));

        // The magnifier should hide when the drag ends.
        await gesture.up();
        await tester.pump();
        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 11);
        expect(find.byKey(fakeMagnifier.key!), findsNothing);
      },
      variant: const TargetPlatformVariant(<TargetPlatform>{
        TargetPlatform.android,
        TargetPlatform.iOS,
      }),
    );

    testWidgets(
      'Can long press to show, unshow, and update magnifier on non-Apple platforms',
      (WidgetTester tester) async {
        final controller = TextEditingController();
        addTearDown(controller.dispose);
        final isTargetPlatformAndroid = defaultTargetPlatform == TargetPlatform.android;
        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
                magnifierConfiguration: TextMagnifierConfiguration(
                  magnifierBuilder:
                      (
                        _,
                        MagnifierController controller,
                        ValueNotifier<MagnifierInfo> localMagnifierInfo,
                      ) {
                        magnifierInfo = localMagnifierInfo;
                        return fakeMagnifier;
                      },
                ),
              ),
            ),
          ),
        );

        const testValue = 'abc def ghi';
        await tester.enterText(find.byType(CupertinoTextField), testValue);
        await tester.pumpAndSettle();

        // Tap at 'e' to move the cursor before the 'e'.
        await tester.tapAt(textOffsetToPosition(tester, testValue.indexOf('e')));
        await tester.pumpAndSettle(const Duration(milliseconds: 300));
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, isTargetPlatformAndroid ? 5 : 4);
        expect(find.byKey(fakeMagnifier.key!), findsNothing);

        // Long press the 'e' to select 'def' and show the magnifier.
        final TestGesture gesture = await tester.startGesture(
          textOffsetToPosition(tester, testValue.indexOf('e')),
        );
        await tester.pumpAndSettle(const Duration(milliseconds: 1000));
        expect(controller.selection.baseOffset, 4);
        expect(controller.selection.extentOffset, 7);
        expect(find.byKey(fakeMagnifier.key!), findsOneWidget);

        final Offset firstLongPressGesturePosition = magnifierInfo.value.globalGesturePosition;

        // Move the gesture to 'h' to extend the selection to 'ghi'.
        await gesture.moveTo(textOffsetToPosition(tester, testValue.indexOf('h')));
        await tester.pumpAndSettle();
        expect(controller.selection.baseOffset, 4);
        expect(controller.selection.extentOffset, 11);
        expect(find.byKey(fakeMagnifier.key!), findsOneWidget);
        // Expect the position the magnifier gets to have moved.
        expect(firstLongPressGesturePosition, isNot(magnifierInfo.value.globalGesturePosition));

        // End the long press to hide the magnifier.
        await gesture.up();
        await tester.pumpAndSettle();
        expect(find.byKey(fakeMagnifier.key!), findsNothing);
      },
      variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.android}),
    );

    testWidgets(
      'Can long press to show, unshow, and update magnifier on iOS',
      (WidgetTester tester) async {
        final controller = TextEditingController();
        addTearDown(controller.dispose);
        final isTargetPlatformAndroid = defaultTargetPlatform == TargetPlatform.android;
        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
                magnifierConfiguration: TextMagnifierConfiguration(
                  magnifierBuilder:
                      (
                        _,
                        MagnifierController controller,
                        ValueNotifier<MagnifierInfo> localMagnifierInfo,
                      ) {
                        magnifierInfo = localMagnifierInfo;
                        return fakeMagnifier;
                      },
                ),
              ),
            ),
          ),
        );

        const testValue = 'abc def ghi';
        await tester.enterText(find.byType(CupertinoTextField), testValue);
        await tester.pumpAndSettle();

        // Tap at 'e' to set the selection to position 5 on Android.
        // Tap at 'e' to set the selection to the closest word edge, which is position 4 on iOS.
        await tester.tapAt(textOffsetToPosition(tester, testValue.indexOf('e')));
        await tester.pumpAndSettle(const Duration(milliseconds: 300));
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, isTargetPlatformAndroid ? 5 : 7);
        expect(find.byKey(fakeMagnifier.key!), findsNothing);

        // Long press the 'e' to move the cursor in front of the 'e' and show the magnifier.
        final TestGesture gesture = await tester.startGesture(
          textOffsetToPosition(tester, testValue.indexOf('e')),
        );
        await tester.pumpAndSettle(const Duration(milliseconds: 1000));
        expect(controller.selection.baseOffset, 5);
        expect(controller.selection.extentOffset, 5);
        expect(find.byKey(fakeMagnifier.key!), findsOneWidget);

        final Offset firstLongPressGesturePosition = magnifierInfo.value.globalGesturePosition;

        // Move the gesture to 'h' to update the magnifier and move the cursor to 'h'.
        await gesture.moveTo(textOffsetToPosition(tester, testValue.indexOf('h')));
        await tester.pumpAndSettle();
        expect(controller.selection.baseOffset, 9);
        expect(controller.selection.extentOffset, 9);
        expect(find.byKey(fakeMagnifier.key!), findsOneWidget);
        // Expect the position the magnifier gets to have moved.
        expect(firstLongPressGesturePosition, isNot(magnifierInfo.value.globalGesturePosition));

        // End the long press to hide the magnifier.
        await gesture.up();
        await tester.pumpAndSettle();
        expect(find.byKey(fakeMagnifier.key!), findsNothing);
      },
      variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
    );

    testWidgets(
      'Can double tap and drag to show, unshow, and update magnifier',
      (WidgetTester tester) async {
        final controller = TextEditingController();
        addTearDown(controller.dispose);
        MagnifierController? magnifierController;
        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                controller: controller,
                magnifierConfiguration: TextMagnifierConfiguration(
                  magnifierBuilder:
                      (
                        BuildContext context,
                        MagnifierController controller,
                        ValueNotifier<MagnifierInfo> localMagnifierInfo,
                      ) {
                        magnifierController = controller;
                        return TextMagnifier.adaptiveMagnifierConfiguration.magnifierBuilder(
                          context,
                          controller,
                          localMagnifierInfo,
                        );
                      },
                ),
              ),
            ),
          ),
        );

        const testValue = 'one two three four five six seven';
        await tester.enterText(find.byType(CupertinoTextField), testValue);
        await tester.pumpAndSettle();

        // Tap at 'e' to set the selection to the closest word edge, which is position 3 on iOS.
        final Offset initialPosition = textOffsetToPosition(tester, testValue.indexOf('e'));
        await tester.tapAt(initialPosition);
        await tester.pumpAndSettle(const Duration(milliseconds: 300));
        expect(controller.selection.isCollapsed, true);
        expect(controller.selection.baseOffset, 3);
        expect(magnifierController, isNull);

        // Double tap the 'e' to select 'one'.
        final TestGesture gesture = await tester.startGesture(initialPosition);
        await tester.pump();
        await gesture.up();
        await tester.pump();
        await gesture.down(initialPosition);
        await tester.pumpAndSettle();
        expect(controller.selection.isCollapsed, false);
        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 3);
        expect(magnifierController, isNull);

        // Drag immediately after the double tap to select 'one two three four' and show the magnifier.
        await gesture.moveTo(textOffsetToPosition(tester, 16));
        await tester.pumpAndSettle();

        expect(controller.selection.isCollapsed, false);
        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 18);
        expect(magnifierController, isNotNull);
        expect(magnifierController!.shown, true);

        // Dragging down at the same position should hide the cupertino magnifier when it
        // exceeds its `hideBelowThreshold`.
        await gesture.moveTo(textOffsetToPosition(tester, 16) + const Offset(0.0, 50.0));
        await tester.pumpAndSettle();
        expect(controller.selection.isCollapsed, false);
        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 18);
        expect(magnifierController, isNotNull);
        expect(magnifierController!.shown, false);

        // Keep draging to select 'one two three four five' while the position continues to
        // exceed the `hideBelowThreshold` keeping the magnifier hidden.
        await gesture.moveTo(textOffsetToPosition(tester, 20) + const Offset(0.0, 50.0));
        await tester.pumpAndSettle();
        expect(controller.selection.isCollapsed, false);
        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 23);
        expect(magnifierController, isNotNull);
        expect(magnifierController!.shown, false);

        // Remove offset that is used to exceed threshold, this should reveal the magnifier.
        await gesture.moveTo(textOffsetToPosition(tester, 20));
        await tester.pumpAndSettle();
        expect(controller.selection.isCollapsed, false);
        expect(controller.selection.baseOffset, 0);
        expect(controller.selection.extentOffset, 23);
        expect(magnifierController, isNotNull);
        expect(magnifierController!.shown, true);

        // End the drag to hide the magnifier.
        await gesture.up();
        await tester.pumpAndSettle();
        expect(magnifierController, isNotNull);
        expect(magnifierController!.shown, false);
      },
      variant: TargetPlatformVariant.only(TargetPlatform.iOS),
    );

    testWidgets(
      'cancelling long press hides magnifier',
      (WidgetTester tester) async {
        // Regression test for https://github.com/flutter/flutter/issues/167879
        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                dragStartBehavior: DragStartBehavior.down,
                magnifierConfiguration: TextMagnifierConfiguration(
                  magnifierBuilder:
                      (
                        BuildContext context,
                        MagnifierController controller,
                        ValueNotifier<MagnifierInfo> localMagnifierInfo,
                      ) {
                        magnifierInfo = localMagnifierInfo;
                        return fakeMagnifier;
                      },
                ),
              ),
            ),
          ),
        );

        expect(find.byKey(fakeMagnifier.key!), findsNothing);

        final TestGesture gesture = await tester.startGesture(
          tester.getCenter(find.byType(CupertinoTextField)),
        );

        await tester.pumpAndSettle(kLongPressTimeout);

        expect(find.byKey(fakeMagnifier.key!), findsOneWidget);

        // Cancel the long press to hide the magnifier.
        await gesture.cancel();
        await tester.pumpAndSettle();

        expect(find.byKey(fakeMagnifier.key!), findsNothing);
      },
      variant: const TargetPlatformVariant(<TargetPlatform>{
        TargetPlatform.android,
        TargetPlatform.iOS,
      }),
    );
    testWidgets(
      'TextField cursor appears only when focused',
      (WidgetTester tester) async {
        final focusNode = FocusNode(debugLabel: 'Test Node');
        addTearDown(focusNode.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            home: Center(
              child: CupertinoTextField(
                focusNode: focusNode,
                dragStartBehavior: DragStartBehavior.down,
              ),
            ),
          ),
        );

        final Offset fieldCenter = tester.getCenter(find.byType(EditableText));
        final TestGesture gesture = await tester.startGesture(fieldCenter);
        await gesture.moveBy(const Offset(30, 0));
        await tester.pumpAndSettle();

        // The blinking cursor should NOT be shown.
        final EditableTextState editableTextState = tester.state<EditableTextState>(
          find.byType(EditableText),
        );
        expect(focusNode.hasFocus, isFalse);
        expect(editableTextState.cursorCurrentlyVisible, isFalse);

        // Simulate long press again.
        await tester.pump();
        await tester.longPress(find.byType(EditableText));
        await tester.pumpAndSettle();

        // The blinking cursor should now be shown.
        expect(focusNode.hasFocus, isTrue);
        expect(editableTextState.cursorCurrentlyVisible, isTrue);
      },
      variant: const TargetPlatformVariant(<TargetPlatform>{
        TargetPlatform.iOS,
        TargetPlatform.android,
      }),
    );
  });

  group('TapRegion integration', () {
    testWidgets('Tapping outside loses focus on desktop', (WidgetTester tester) async {
      final focusNode = FocusNode(debugLabel: 'Test Node');
      addTearDown(focusNode.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: SizedBox(
              width: 100,
              height: 100,
              child: CupertinoTextField(autofocus: true, focusNode: focusNode),
            ),
          ),
        ),
      );
      await tester.pump();
      expect(focusNode.hasPrimaryFocus, isTrue);

      // Tap outside the border.
      await tester.tapAt(const Offset(10, 10));
      await tester.pump();

      expect(focusNode.hasPrimaryFocus, isFalse);
    }, variant: TargetPlatformVariant.desktop());

    testWidgets("Tapping outside doesn't lose focus on mobile", (WidgetTester tester) async {
      final focusNode = FocusNode(debugLabel: 'Test Node');
      addTearDown(focusNode.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: SizedBox(
              width: 100,
              height: 100,
              child: CupertinoTextField(autofocus: true, focusNode: focusNode),
            ),
          ),
        ),
      );
      await tester.pump();
      expect(focusNode.hasPrimaryFocus, isTrue);

      // Tap just outside the border, but not inside the EditableText.
      await tester.tapAt(const Offset(10, 10));
      await tester.pump();

      // Focus is lost on mobile browsers, but not mobile apps.
      expect(focusNode.hasPrimaryFocus, kIsWeb ? isFalse : isTrue);
    }, variant: TargetPlatformVariant.mobile());

    testWidgets(
      "tapping on toolbar doesn't lose focus",
      (WidgetTester tester) async {
        final TextEditingController controller;
        final EditableTextState state;

        controller = TextEditingController(text: 'A B C');
        addTearDown(controller.dispose);
        final focusNode = FocusNode(debugLabel: 'Test Node');
        addTearDown(focusNode.dispose);
        await tester.pumpWidget(
          CupertinoApp(
            debugShowCheckedModeBanner: false,
            home: CupertinoPageScaffold(
              child: Align(
                child: SizedBox(
                  width: 200,
                  height: 200,
                  child: CupertinoTextField(
                    autofocus: true,
                    focusNode: focusNode,
                    controller: controller,
                  ),
                ),
              ),
            ),
          ),
        );
        await tester.pump();
        expect(focusNode.hasPrimaryFocus, isTrue);

        state = tester.state<EditableTextState>(find.byType(EditableText));

        // Select the first 2 words.
        state.renderEditable.selectPositionAt(
          from: textOffsetToPosition(tester, 0),
          to: textOffsetToPosition(tester, 2),
          cause: SelectionChangedCause.tap,
        );

        final Offset midSelection = textOffsetToPosition(tester, 2);

        // Right click the selection.
        final TestGesture gesture = await tester.startGesture(
          midSelection,
          kind: PointerDeviceKind.mouse,
          buttons: kSecondaryMouseButton,
        );
        await tester.pump();
        await gesture.up();
        await tester.pumpAndSettle();

        expect(find.text('Copy'), findsOneWidget);

        // Copy the first word.
        await tester.tap(find.text('Copy'));
        await tester.pump();
        expect(focusNode.hasPrimaryFocus, isTrue);
      },
      variant: TargetPlatformVariant.all(),
      // [intended] The toolbar isn't rendered by Flutter on the web, it's rendered by the browser.
      skip: kIsWeb,
    );

    testWidgets("Tapping on border doesn't lose focus", (WidgetTester tester) async {
      final focusNode = FocusNode(debugLabel: 'Test Node');
      addTearDown(focusNode.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: SizedBox(
              width: 100,
              height: 100,
              child: CupertinoTextField(autofocus: true, focusNode: focusNode),
            ),
          ),
        ),
      );
      await tester.pump();
      expect(focusNode.hasPrimaryFocus, isTrue);

      final Rect borderBox = tester.getRect(find.byType(CupertinoTextField));
      // Tap just inside the border, but not inside the EditableText.
      await tester.tapAt(borderBox.topLeft + const Offset(1, 1));
      await tester.pump();

      expect(focusNode.hasPrimaryFocus, isTrue);
    }, variant: TargetPlatformVariant.all());
  });

  testWidgets('Can drag handles to change selection correctly in multiline', (
    WidgetTester tester,
  ) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);

    await tester.pumpWidget(
      CupertinoApp(
        debugShowCheckedModeBanner: false,
        home: CupertinoPageScaffold(
          child: CupertinoTextField(
            dragStartBehavior: DragStartBehavior.down,
            controller: controller,
            style: const TextStyle(color: Colors.black, fontSize: 34.0),
            maxLines: 3,
          ),
        ),
      ),
    );

    const testValue =
        'First line of text is\n'
        'Second line goes until\n'
        'Third line of stuff';

    const cutValue =
        'First line of text is\n'
        'Second until\n'
        'Third line of stuff';
    await tester.enterText(find.byType(CupertinoTextField), testValue);

    // Skip past scrolling animation.
    await tester.pump();
    await tester.pumpAndSettle(const Duration(milliseconds: 200));

    // Check that the text spans multiple lines.
    final Offset firstPos = textOffsetToPosition(tester, testValue.indexOf('First'));
    final Offset secondPos = textOffsetToPosition(tester, testValue.indexOf('Second'));
    final Offset thirdPos = textOffsetToPosition(tester, testValue.indexOf('Third'));
    expect(firstPos.dx, secondPos.dx);
    expect(firstPos.dx, thirdPos.dx);
    expect(firstPos.dy, lessThan(secondPos.dy));
    expect(secondPos.dy, lessThan(thirdPos.dy));

    // Double tap on the 'n' in 'until' to select the word.
    final Offset untilPos = textOffsetToPosition(tester, testValue.indexOf('until') + 1);
    await tester.tapAt(untilPos);
    await tester.pump(const Duration(milliseconds: 50));
    await tester.tapAt(untilPos);
    await tester.pumpAndSettle();

    // Skip past the frame where the opacity is zero.
    await tester.pump(const Duration(milliseconds: 200));

    expect(controller.selection.baseOffset, 39);
    expect(controller.selection.extentOffset, 44);

    final RenderEditable renderEditable = findRenderEditable(tester);
    final List<TextSelectionPoint> endpoints = globalize(
      renderEditable.getEndpointsForSelection(controller.selection),
      renderEditable,
    );
    expect(endpoints.length, 2);

    final offsetFromEndPointToMiddlePoint = Offset(0.0, -renderEditable.preferredLineHeight / 2);

    // Drag the left handle to just after 'Second', still on the second line.
    Offset handlePos = endpoints[0].point + offsetFromEndPointToMiddlePoint;
    Offset newHandlePos =
        textOffsetToPosition(tester, testValue.indexOf('Second') + 6) +
        offsetFromEndPointToMiddlePoint;
    TestGesture gesture = await tester.startGesture(handlePos, pointer: 7);
    await tester.pump();
    await gesture.moveTo(newHandlePos);
    await tester.pump();
    await gesture.up();
    await tester.pump();

    expect(controller.selection.baseOffset, 28);
    expect(controller.selection.extentOffset, 44);

    // Drag the right handle to just after 'goes', still on the second line.
    handlePos = endpoints[1].point + offsetFromEndPointToMiddlePoint;
    newHandlePos =
        textOffsetToPosition(tester, testValue.indexOf('goes') + 4) +
        offsetFromEndPointToMiddlePoint;
    gesture = await tester.startGesture(handlePos, pointer: 7);
    await tester.pump();
    await gesture.moveTo(newHandlePos);
    await tester.pump();
    await gesture.up();
    await tester.pump();

    expect(controller.selection.baseOffset, 28);
    expect(controller.selection.extentOffset, 38);

    if (!isContextMenuProvidedByPlatform) {
      await tester.tap(find.text('Cut'));
      await tester.pump();
      expect(controller.selection.isCollapsed, true);
      expect(controller.text, cutValue);
    }
  });

  testWidgets('placeholder style overflow works', (WidgetTester tester) async {
    final String placeholder = 'hint text' * 20;
    const placeholderStyle = TextStyle(fontSize: 14.0, overflow: TextOverflow.fade);

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: CupertinoTextField(placeholder: placeholder, placeholderStyle: placeholderStyle),
        ),
      ),
    );
    await tester.pumpAndSettle();
    final Finder placeholderFinder = find.text(placeholder);
    final Text placeholderWidget = tester.widget(placeholderFinder);
    expect(placeholderWidget.overflow, placeholderStyle.overflow);
    expect(placeholderWidget.style!.overflow, placeholderStyle.overflow);
  });

  testWidgets(
    'tapping on a misspelled word on iOS hides the handles and shows red selection',
    (WidgetTester tester) async {
      tester.binding.platformDispatcher.nativeSpellCheckServiceDefinedTestValue = true;
      // The default derived color for the iOS text selection highlight.
      const defaultSelectionColor = Color(0x33007aff);
      final controller = TextEditingController(text: 'test test testt');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(
            child: CupertinoTextField(
              controller: controller,
              spellCheckConfiguration: const SpellCheckConfiguration(
                misspelledTextStyle: CupertinoTextField.cupertinoMisspelledTextStyle,
                spellCheckSuggestionsToolbarBuilder:
                    CupertinoTextField.defaultSpellCheckSuggestionsToolbarBuilder,
              ),
            ),
          ),
        ),
      );

      final EditableTextState state = tester.state<EditableTextState>(find.byType(EditableText));
      state.spellCheckResults = SpellCheckResults(controller.value.text, const <SuggestionSpan>[
        SuggestionSpan(TextRange(start: 10, end: 15), <String>['test']),
      ]);

      // Double tapping a non-misspelled word shows the normal blue selection and
      // the selection handles.
      expect(state.selectionOverlay, isNull);
      await tester.tapAt(textOffsetToPosition(tester, 2));
      await tester.pump(const Duration(milliseconds: 50));
      expect(state.selectionOverlay!.handlesAreVisible, isFalse);
      await tester.tapAt(textOffsetToPosition(tester, 2));
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 4));
      expect(state.selectionOverlay!.handlesAreVisible, isTrue);
      expect(state.renderEditable.selectionColor, defaultSelectionColor);

      // Single tapping a non-misspelled word shows a collapsed cursor.
      await tester.tapAt(textOffsetToPosition(tester, 7));
      await tester.pumpAndSettle();
      expect(
        controller.selection,
        const TextSelection.collapsed(offset: 9, affinity: TextAffinity.upstream),
      );
      expect(state.selectionOverlay!.handlesAreVisible, isFalse);
      expect(state.renderEditable.selectionColor, defaultSelectionColor);

      // Single tapping a misspelled word selects it in red with no handles.
      await tester.tapAt(textOffsetToPosition(tester, 13));
      await tester.pumpAndSettle();
      expect(controller.selection, const TextSelection(baseOffset: 10, extentOffset: 15));
      expect(state.selectionOverlay!.handlesAreVisible, isFalse);
      expect(state.renderEditable.selectionColor, CupertinoTextField.kMisspelledSelectionColor);
    },
    variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.iOS}),
    skip: kIsWeb, // [intended]
  );

  testWidgets(
    'text selection toolbar is hidden on tap down on desktop platforms',
    (WidgetTester tester) async {
      final controller = TextEditingController(text: 'blah1 blah2');
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller)),
        ),
      );

      expect(find.byType(CupertinoAdaptiveTextSelectionToolbar), findsNothing);

      TestGesture gesture = await tester.startGesture(
        textOffsetToPosition(tester, 8),
        kind: PointerDeviceKind.mouse,
        buttons: kSecondaryMouseButton,
      );
      await tester.pump();
      await gesture.up();
      await tester.pumpAndSettle();

      expect(find.byType(CupertinoAdaptiveTextSelectionToolbar), findsOneWidget);

      gesture = await tester.startGesture(
        textOffsetToPosition(tester, 2),
        kind: PointerDeviceKind.mouse,
      );
      await tester.pump();

      // After the gesture is down but not up, the toolbar is already gone.
      expect(find.byType(CupertinoAdaptiveTextSelectionToolbar), findsNothing);

      await gesture.up();
      await tester.pumpAndSettle();

      expect(find.byType(CupertinoAdaptiveTextSelectionToolbar), findsNothing);
    },
    // [intended] only applies to platforms where we supply the context menu.
    skip: isContextMenuProvidedByPlatform,
    variant: TargetPlatformVariant.all(excluding: TargetPlatformVariant.mobile().values),
  );

  testWidgets(
    'Does not shrink in height when enters text when there is large single-line placeholder',
    (WidgetTester tester) async {
      // Regression test for https://github.com/flutter/flutter/issues/133241.
      final controller = TextEditingController();
      addTearDown(controller.dispose);
      await tester.pumpWidget(
        CupertinoApp(
          home: Align(
            alignment: Alignment.topCenter,
            child: CupertinoTextField(
              placeholderStyle: const TextStyle(fontSize: 100),
              placeholder: 'p',
              controller: controller,
            ),
          ),
        ),
      );

      final Rect rectWithPlaceholder = tester.getRect(find.byType(CupertinoTextField));
      controller.value = const TextEditingValue(text: 'input');
      await tester.pump();

      final Rect rectWithText = tester.getRect(find.byType(CupertinoTextField));
      expect(rectWithPlaceholder, rectWithText);
    },
  );

  testWidgets('Does not match the height of a multiline placeholder', (WidgetTester tester) async {
    final controller = TextEditingController();
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Align(
          alignment: Alignment.topCenter,
          child: CupertinoTextField(
            placeholderStyle: const TextStyle(fontSize: 100),
            placeholder: 'p' * 50,
            maxLines: null,
            controller: controller,
          ),
        ),
      ),
    );

    final Rect rectWithPlaceholder = tester.getRect(find.byType(CupertinoTextField));
    controller.value = const TextEditingValue(text: 'input');
    await tester.pump();

    final Rect rectWithText = tester.getRect(find.byType(CupertinoTextField));
    // The text field is still top aligned.
    expect(rectWithPlaceholder.top, rectWithText.top);
    // But after entering text the text field should shrink since the
    // placeholder text is huge and multiline.
    expect(rectWithPlaceholder.height, greaterThan(rectWithText.height));
    // But still should be taller than or the same height of the first line of
    // placeholder.
    expect(rectWithText.height, greaterThan(100));
  });

  testWidgets('Placeholder is baseline aligned with text', (WidgetTester tester) async {
    const placeholderTextContent = 'hint text';
    const actualTextContent = 'text';
    var currentPlaceholderFontSize = 1.0;
    var currentTextFontSize = 1.0;
    late StateSetter setState;

    await tester.pumpWidget(
      CupertinoApp(
        home: Center(
          child: StatefulBuilder(
            builder: (BuildContext context, StateSetter setter) {
              setState = setter;
              return CupertinoTextField(
                minLines: 4,
                maxLines: 6,
                placeholder: placeholderTextContent,
                placeholderStyle: TextStyle(fontSize: currentPlaceholderFontSize),
                style: TextStyle(fontSize: currentTextFontSize),
              );
            },
          ),
        ),
      ),
    );

    Future<void> performBaselineAlignmentCheck(double placeholderSize, double textSize) async {
      setState(() {
        currentPlaceholderFontSize = placeholderSize;
        currentTextFontSize = textSize;
      });
      await tester.pump();
      await tester.enterText(find.byType(CupertinoTextField), actualTextContent);
      await tester.pump();

      expect(find.text(placeholderTextContent), findsOneWidget);
      expect(find.text(actualTextContent), findsOneWidget);

      // The placeholder and text are baseline aligned, so some portion of them
      // extends both above and below the baseline.
      const ahemBaselineRatio = 0.8; // https://web-platform-tests.org/writing-tests/ahem.html
      final double placeholderHeightAboveBaseline = placeholderSize * ahemBaselineRatio;
      final double textHeightAboveBaseline = textSize * ahemBaselineRatio;
      final double placeholderTopDy = tester.getTopLeft(find.text(placeholderTextContent)).dy;
      final double textTopDy = tester.getTopLeft(find.text(actualTextContent)).dy;

      expect(
        textTopDy,
        closeTo(placeholderTopDy + placeholderHeightAboveBaseline - textHeightAboveBaseline, 1.0),
      );
    }

    // Placeholder and text are baseline aligned when the placeholder is larger.
    await performBaselineAlignmentCheck(40.0, 20.0);

    await tester.enterText(find.byType(CupertinoTextField), '');
    await tester.pump();

    // Placeholder and text are baseline aligned when the text is larger.
    await performBaselineAlignmentCheck(20.0, 40.0);
  });

  testWidgets('Editable text in text field with placeholder is hit-testable', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(child: CupertinoTextField(placeholder: 'placeholder')),
      ),
    );

    expect(find.byType(CupertinoTextField), findsOneWidget);
    expect(find.byType(EditableText).hitTestable(), findsOne);
  });

  testWidgets('Text field with placeholder has correct intrinsic height', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: IntrinsicHeight(child: CupertinoTextField(placeholder: 'placeholder')),
        ),
      ),
    );

    expect(find.byType(CupertinoTextField), findsOneWidget);
    expect(tester.getSize(find.byType(CupertinoTextField)).height, greaterThan(0.0));
  });

  testWidgets('Text field with placeholder has correct intrinsic width', (
    WidgetTester tester,
  ) async {
    await tester.pumpWidget(
      const CupertinoApp(
        home: Center(
          child: IntrinsicWidth(child: CupertinoTextField(placeholder: 'placeholder')),
        ),
      ),
    );

    expect(find.byType(CupertinoTextField), findsOneWidget);
    expect(tester.getSize(find.byType(CupertinoTextField)).width, greaterThan(0.0));
  });

  testWidgets('Start the floating cursor on long tap', (WidgetTester tester) async {
    EditableText.debugDeterministicCursor = true;
    final controller = TextEditingController(text: 'abcd');
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      MaterialApp(
        home: Scaffold(
          body: Center(
            child: RepaintBoundary(
              key: const ValueKey<int>(1),
              child: CupertinoTextField(autofocus: true, controller: controller),
            ),
          ),
        ),
      ),
    );
    // Wait for autofocus.
    await tester.pumpAndSettle();
    final Offset textFieldCenter = tester.getCenter(find.byType(CupertinoTextField));
    final TestGesture gesture = await tester.startGesture(textFieldCenter);
    await tester.pump(kLongPressTimeout);
    await expectLater(
      find.byKey(const ValueKey<int>(1)),
      matchesGoldenFile('text_field_floating_cursor.regular_and_floating_both.cupertino.0.png'),
    );
    await gesture.moveTo(Offset(10, textFieldCenter.dy));
    await tester.pump();
    await expectLater(
      find.byKey(const ValueKey<int>(1)),
      matchesGoldenFile('text_field_floating_cursor.only_floating_cursor.cupertino.0.png'),
    );
    await gesture.up();
    EditableText.debugDeterministicCursor = false;
  }, variant: TargetPlatformVariant.only(TargetPlatform.iOS));

  testWidgets('when enabled listens to onFocus events and gains focus', (
    WidgetTester tester,
  ) async {
    final semantics = SemanticsTester(tester);
    final SemanticsOwner semanticsOwner = tester.binding.pipelineOwner.semanticsOwner!;
    final focusNode = FocusNode();
    addTearDown(focusNode.dispose);
    await tester.pumpWidget(CupertinoApp(home: CupertinoTextField(focusNode: focusNode)));
    expect(
      semantics,
      hasSemantics(
        TestSemantics.root(
          children: <TestSemantics>[
            TestSemantics(
              id: 1,
              children: <TestSemantics>[
                TestSemantics(
                  id: 2,
                  children: <TestSemantics>[
                    TestSemantics(
                      id: 3,
                      flags: <SemanticsFlag>[SemanticsFlag.scopesRoute],
                      children: <TestSemantics>[
                        TestSemantics(
                          id: 4,
                          inputType: ui.SemanticsInputType.text,
                          flags: <SemanticsFlag>[
                            SemanticsFlag.isTextField,
                            SemanticsFlag.isFocusable,
                            SemanticsFlag.hasEnabledState,
                            SemanticsFlag.isEnabled,
                          ],
                          actions: <SemanticsAction>[
                            SemanticsAction.tap,
                            SemanticsAction.focus,
                            if (defaultTargetPlatform == TargetPlatform.linux ||
                                defaultTargetPlatform == TargetPlatform.windows ||
                                defaultTargetPlatform == TargetPlatform.macOS) ...<SemanticsAction>[
                              SemanticsAction.didGainAccessibilityFocus,
                              SemanticsAction.didLoseAccessibilityFocus,
                            ],
                            // TODO(gspencergoog): also test for the presence of SemanticsAction.focus when
                            // this iOS issue is addressed: https://github.com/flutter/flutter/issues/150030
                          ],
                        ),
                      ],
                    ),
                  ],
                ),
              ],
            ),
          ],
        ),
        ignoreRect: true,
        ignoreTransform: true,
      ),
    );

    expect(focusNode.hasFocus, isFalse);
    semanticsOwner.performAction(4, SemanticsAction.focus);
    await tester.pumpAndSettle();
    expect(focusNode.hasFocus, isTrue);
    semantics.dispose();
  }, variant: TargetPlatformVariant.all());

  testWidgets(
    'when disabled does not listen to onFocus events or gain focus',
    (WidgetTester tester) async {
      final semantics = SemanticsTester(tester);
      final SemanticsOwner semanticsOwner = tester.binding.pipelineOwner.semanticsOwner!;
      final focusNode = FocusNode();
      addTearDown(focusNode.dispose);
      await tester.pumpWidget(
        CupertinoApp(home: CupertinoTextField(focusNode: focusNode, enabled: false)),
      );
      expect(
        semantics,
        hasSemantics(
          TestSemantics.root(
            children: <TestSemantics>[
              TestSemantics(
                id: 1,
                textDirection: TextDirection.ltr,
                children: <TestSemantics>[
                  TestSemantics(
                    id: 2,
                    children: <TestSemantics>[
                      TestSemantics(
                        id: 3,
                        flags: <SemanticsFlag>[SemanticsFlag.scopesRoute],
                        children: <TestSemantics>[
                          TestSemantics(
                            id: 4,
                            inputType: ui.SemanticsInputType.text,
                            flags: <SemanticsFlag>[
                              SemanticsFlag.isTextField,
                              SemanticsFlag.isFocusable,
                              SemanticsFlag.hasEnabledState,
                              SemanticsFlag.isReadOnly,
                            ],
                            actions: <SemanticsAction>[
                              if (defaultTargetPlatform == TargetPlatform.linux ||
                                  defaultTargetPlatform == TargetPlatform.windows ||
                                  defaultTargetPlatform ==
                                      TargetPlatform.macOS) ...<SemanticsAction>[
                                SemanticsAction.didGainAccessibilityFocus,
                                SemanticsAction.didLoseAccessibilityFocus,
                              ],
                            ],
                          ),
                        ],
                      ),
                    ],
                  ),
                ],
              ),
            ],
          ),
          ignoreRect: true,
          ignoreTransform: true,
        ),
      );

      expect(focusNode.hasFocus, isFalse);
      semanticsOwner.performAction(4, SemanticsAction.focus);
      await tester.pumpAndSettle();
      expect(focusNode.hasFocus, isFalse);
      semantics.dispose();
    },
    variant: TargetPlatformVariant.all(),
  );

  testWidgets(
    'when receives SemanticsAction.focus while already focused, shows keyboard',
    (WidgetTester tester) async {
      final semantics = SemanticsTester(tester);
      final SemanticsOwner semanticsOwner = tester.binding.pipelineOwner.semanticsOwner!;
      final focusNode = FocusNode();
      addTearDown(focusNode.dispose);
      await tester.pumpWidget(CupertinoApp(home: CupertinoTextField(focusNode: focusNode)));
      focusNode.requestFocus();
      await tester.pumpAndSettle();

      tester.testTextInput.log.clear();
      expect(focusNode.hasFocus, isTrue);
      semanticsOwner.performAction(4, SemanticsAction.focus);
      await tester.pumpAndSettle();
      expect(focusNode.hasFocus, isTrue);
      expect(tester.testTextInput.log.single.method, 'TextInput.show');

      semantics.dispose();
    },
    variant: TargetPlatformVariant.all(),
  );

  testWidgets(
    'when receives SemanticsAction.focus while focused but read-only, does not show keyboard',
    (WidgetTester tester) async {
      final semantics = SemanticsTester(tester);
      final SemanticsOwner semanticsOwner = tester.binding.pipelineOwner.semanticsOwner!;
      final focusNode = FocusNode();
      addTearDown(focusNode.dispose);
      await tester.pumpWidget(
        CupertinoApp(home: CupertinoTextField(focusNode: focusNode, readOnly: true)),
      );
      focusNode.requestFocus();
      await tester.pumpAndSettle();

      tester.testTextInput.log.clear();
      expect(focusNode.hasFocus, isTrue);
      semanticsOwner.performAction(4, SemanticsAction.focus);
      await tester.pumpAndSettle();
      expect(focusNode.hasFocus, isTrue);
      expect(tester.testTextInput.log, isEmpty);

      semantics.dispose();
    },
    variant: TargetPlatformVariant.all(),
  );

  testWidgets(
    'readOnly disallows SystemContextMenu',
    (WidgetTester tester) async {
      // Regression test for https://github.com/flutter/flutter/issues/170521.
      tester.platformDispatcher.supportsShowingSystemContextMenu = true;
      final controller = TextEditingController(text: 'abcdefghijklmnopqr');
      addTearDown(() {
        tester.platformDispatcher.resetSupportsShowingSystemContextMenu();
        tester.view.reset();
        controller.dispose();
      });

      var readOnly = true;
      late StateSetter setState;

      await tester.pumpWidget(
        // Don't wrap with the global View so that the change to
        // platformDispatcher is read.
        wrapWithView: false,
        View(
          view: tester.view,
          child: CupertinoApp(
            home: StatefulBuilder(
              builder: (BuildContext context, StateSetter setter) {
                setState = setter;
                return CupertinoTextField(readOnly: readOnly, controller: controller);
              },
            ),
          ),
        ),
      );

      final Duration waitDuration = SelectionOverlay.fadeDuration > kDoubleTapTimeout
          ? SelectionOverlay.fadeDuration
          : kDoubleTapTimeout;

      // Double tap to select the text.
      await tester.tapAt(textOffsetToPosition(tester, 5));
      await tester.pump(kDoubleTapTimeout ~/ 2);
      await tester.tapAt(textOffsetToPosition(tester, 5));
      await tester.pump(waitDuration);

      // No error as in https://github.com/flutter/flutter/issues/170521.

      // The Flutter-drawn context menu is shown. The SystemContextMenu is not
      // shown because readOnly is true.
      expect(find.byType(CupertinoAdaptiveTextSelectionToolbar), findsOneWidget);
      expect(find.byType(SystemContextMenu), findsNothing);

      // Turn off readOnly and hide the context menu.
      setState(() {
        readOnly = false;
      });
      await tester.tap(find.text('Copy'));
      await tester.pump(waitDuration);

      expect(find.byType(CupertinoAdaptiveTextSelectionToolbar), findsNothing);
      expect(find.byType(SystemContextMenu), findsNothing);

      // Double tap to show the context menu again.
      await tester.tapAt(textOffsetToPosition(tester, 5));
      await tester.pump(kDoubleTapTimeout ~/ 2);
      await tester.tapAt(textOffsetToPosition(tester, 5));
      await tester.pump(waitDuration);

      // Now iOS is showing the SystemContextMenu while others continue to show
      // the Flutter-drawn context menu.
      switch (defaultTargetPlatform) {
        case TargetPlatform.iOS:
          expect(find.byType(SystemContextMenu), findsOneWidget);
        case TargetPlatform.macOS:
        case TargetPlatform.android:
        case TargetPlatform.fuchsia:
        case TargetPlatform.linux:
        case TargetPlatform.windows:
          expect(find.byType(CupertinoAdaptiveTextSelectionToolbar), findsOneWidget);
      }
    },
    variant: TargetPlatformVariant.all(),
    skip: kIsWeb, // [intended] on web the browser handles the context menu.
  );

  testWidgets(
    'Does not crash when editing value changes between consecutive scrolls',
    (WidgetTester tester) async {
      // Regression test for https://github.com/flutter/flutter/issues/179164.
      final controller = TextEditingController(text: 'text ' * 10000);
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller, maxLines: null)),
        ),
      );

      final Finder textField = find.byType(CupertinoTextField);
      final EditableTextState editableTextState = tester.state<EditableTextState>(
        find.byType(EditableText),
      );
      // Long press to select the first word and show the toolbar.
      await tester.longPressAt(textOffsetToPosition(tester, 0));
      await tester.pumpAndSettle();
      expect(editableTextState.selectionOverlay?.toolbarIsVisible, true);
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 4));

      // Scroll down so selection is not visible, and toolbar is scheduled to be shown
      // when the selection is once again visible.
      final TestGesture gesture = await tester.startGesture(tester.getCenter(textField));
      await gesture.moveBy(const Offset(0.0, -200.0));
      await tester.pump();
      await gesture.up();

      // Scroll again before the post-frame callback from the first scroll is run to invalidate
      // the data from the first scroll.
      controller.value = const TextEditingValue(text: 'a different value');

      await gesture.down(tester.getCenter(textField));
      await gesture.moveBy(const Offset(0.0, -100.0));
      await tester.pump();
      await gesture.up();
      await tester.pump();
      // This test should reach the end without crashing.
    },
    variant: TargetPlatformVariant.only(TargetPlatform.android),
    // [intended] only applies to platforms where we supply the context menu.
    skip: kIsWeb,
  );

  testWidgets(
    'toolbar should not reappear when editing value changes during a scroll',
    (WidgetTester tester) async {
      // Regression test for https://github.com/flutter/flutter/issues/179164.
      final controller = TextEditingController(text: 'text ' * 10000);
      addTearDown(controller.dispose);

      await tester.pumpWidget(
        CupertinoApp(
          home: Center(child: CupertinoTextField(controller: controller, maxLines: null)),
        ),
      );

      final Finder textField = find.byType(CupertinoTextField);
      final EditableTextState editableTextState = tester.state<EditableTextState>(
        find.byType(EditableText),
      );
      // Long press to select the first word and show the toolbar.
      await tester.longPressAt(textOffsetToPosition(tester, 0));
      await tester.pumpAndSettle();
      expect(editableTextState.selectionOverlay?.toolbarIsVisible, true);
      expect(controller.selection, const TextSelection(baseOffset: 0, extentOffset: 4));

      // Scroll down so selection is not visible, and toolbar is scheduled to be shown
      // when the selection is once again visible.
      final TestGesture gesture = await tester.startGesture(tester.getCenter(textField));
      await gesture.moveBy(const Offset(0.0, -200.0));
      await tester.pump();
      await gesture.up();
      // Change the editing value before the post-frame callback from the scroll is run,
      // this should invalidate the data from the scroll and cause the toolbar to not
      // reappear.
      controller.value = const TextEditingValue(text: 'a different value');
      // Pump and settle to allow postFrameCallbacks to complete.
      await tester.pumpAndSettle();
      expect(editableTextState.selectionOverlay?.toolbarIsVisible, false);
    },
    variant: TargetPlatformVariant.only(TargetPlatform.android),
    // [intended] only applies to platforms where we supply the context menu.
    skip: kIsWeb,
  );

  testWidgets('CupertinoTextField does not crash at zero area', (WidgetTester tester) async {
    tester.view.physicalSize = Size.zero;
    final controller = TextEditingController(text: 'X');
    addTearDown(tester.view.reset);
    addTearDown(controller.dispose);
    await tester.pumpWidget(
      CupertinoApp(
        home: Center(child: CupertinoTextField(controller: controller)),
      ),
    );
    expect(tester.getSize(find.byType(CupertinoTextField)), Size.zero);
    controller.selection = const TextSelection.collapsed(offset: 0);
    tester.pump();
  });
}