| // 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/widgets.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('StatefulWidget BuildContext.mounted', (WidgetTester tester) async { |
| late BuildContext capturedContext; |
| await tester.pumpWidget(TestStatefulWidget( |
| onBuild: (BuildContext context) { |
| capturedContext = context; |
| } |
| )); |
| expect(capturedContext.mounted, isTrue); |
| await tester.pumpWidget(Container()); |
| expect(capturedContext.mounted, isFalse); |
| }); |
| |
| testWidgets('StatelessWidget BuildContext.mounted', (WidgetTester tester) async { |
| late BuildContext capturedContext; |
| await tester.pumpWidget(TestStatelessWidget( |
| onBuild: (BuildContext context) { |
| capturedContext = context; |
| } |
| )); |
| expect(capturedContext.mounted, isTrue); |
| await tester.pumpWidget(Container()); |
| expect(capturedContext.mounted, isFalse); |
| }); |
| } |
| |
| typedef BuildCallback = void Function(BuildContext); |
| |
| class TestStatelessWidget extends StatelessWidget { |
| const TestStatelessWidget({super.key, required this.onBuild}); |
| |
| final BuildCallback onBuild; |
| |
| @override |
| Widget build(BuildContext context) { |
| onBuild(context); |
| return Container(); |
| } |
| } |
| |
| class TestStatefulWidget extends StatefulWidget { |
| const TestStatefulWidget({super.key, required this.onBuild}); |
| |
| final BuildCallback onBuild; |
| |
| @override |
| State<TestStatefulWidget> createState() => _TestStatefulWidgetState(); |
| } |
| |
| class _TestStatefulWidgetState extends State<TestStatefulWidget> { |
| @override |
| Widget build(BuildContext context) { |
| widget.onBuild(context); |
| return Container(); |
| } |
| } |