35 lines
1.5 KiB
Dart
35 lines
1.5 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:flutter_api_samples/widgets/basic/expanded.0.dart' as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Expanded widget in a Column', (WidgetTester tester) async {
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const double totalHeight = 600;
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const double appBarHeight = 56.0;
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const double columnWidth = 100.0;
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const double columnHeight = totalHeight - appBarHeight;
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const double containerOneHeight = 100;
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const double containerTwoHeight = columnHeight - 200;
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const double containerThreeHeight = 100;
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await tester.pumpWidget(const example.ExpandedApp());
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final Size column = tester.getSize(find.byType(Column));
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expect(column, const Size(columnWidth, columnHeight));
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final Size containerOne = tester.getSize(find.byType(Container).at(0));
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expect(containerOne, const Size(columnWidth, containerOneHeight));
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// This Container is wrapped in an Expanded widget, so it should take up
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// the remaining space in the Column.
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final Size containerTwo = tester.getSize(find.byType(Container).at(1));
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expect(containerTwo, const Size(columnWidth, containerTwoHeight));
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final Size containerThree = tester.getSize(find.byType(Container).at(2));
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expect(containerThree, const Size(columnWidth, containerThreeHeight));
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});
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}
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