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.1.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 widgets in a Row', (WidgetTester tester) async {
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const double rowWidth = 800.0;
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const double rowHeight = 100.0;
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const double containerOneWidth = (rowWidth - 50) * 2 / 3;
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const double containerTwoWidth = 50;
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const double containerThreeWidth = (rowWidth - 50) * 1 / 3;
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await tester.pumpWidget(const example.ExpandedApp());
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final Size row = tester.getSize(find.byType(Row));
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expect(row, const Size(rowWidth, rowHeight));
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// This container is wrapped in an Expanded widget, so it should take up
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// two thirds of the remaining space in the Row.
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final Size containerOne = tester.getSize(find.byType(Container).at(0));
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expect(containerOne, const Size(containerOneWidth, rowHeight));
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final Size containerTwo = tester.getSize(find.byType(Container).at(1));
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expect(containerTwo, const Size(containerTwoWidth, rowHeight));
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// This container is wrapped in an Expanded widget, so it should take up
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// one third of the remaining space in the Row.
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final Size containerThree = tester.getSize(find.byType(Container).at(2));
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expect(containerThree, const Size(containerThreeWidth, rowHeight));
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});
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}
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