| // 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. |
| |
| import 'package:flutter/material.dart'; |
| import 'package:flutter_api_samples/widgets/basic/expanded.0.dart' as example; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('Expanded widget in a Column', (WidgetTester tester) async { |
| const double totalHeight = 600; |
| const double appBarHeight = 56.0; |
| const double columnWidth = 100.0; |
| const double columnHeight = totalHeight - appBarHeight; |
| const double containerOneHeight = 100; |
| const double containerTwoHeight = columnHeight - 200; |
| const double containerThreeHeight = 100; |
| |
| await tester.pumpWidget( |
| const example.ExpandedApp(), |
| ); |
| |
| final Size column = tester.getSize(find.byType(Column)); |
| expect(column, const Size(columnWidth, columnHeight)); |
| |
| final Size containerOne = tester.getSize(find.byType(Container).at(0)); |
| expect(containerOne, const Size(columnWidth, containerOneHeight)); |
| |
| // This Container is wrapped in an Expanded widget, so it should take up |
| // the remaining space in the Column. |
| final Size containerTwo = tester.getSize(find.byType(Container).at(1)); |
| expect(containerTwo, const Size(columnWidth, containerTwoHeight)); |
| |
| final Size containerThree = tester.getSize(find.byType(Container).at(2)); |
| expect(containerThree, const Size(columnWidth, containerThreeHeight)); |
| }); |
| } |