| // 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_test/flutter_test.dart'; |
| import 'package:flutter/widgets.dart'; |
| |
| typedef TestCallback = void Function(BuildContext context); |
| |
| class TestWidget extends StatefulWidget { |
| const TestWidget(this.callback, { Key key }) : super(key: key); |
| |
| final TestCallback callback; |
| |
| @override |
| TestWidgetState createState() => TestWidgetState(); |
| } |
| |
| class TestWidgetState extends State<TestWidget> { |
| @override |
| void dispose() { |
| widget.callback(context); |
| super.dispose(); |
| } |
| |
| @override |
| Widget build(BuildContext context) => const Text('test', textDirection: TextDirection.ltr); |
| } |
| |
| void main() { |
| testWidgets('dependOnInheritedWidgetOfExactType() called from dispose() throws error', (WidgetTester tester) async { |
| bool disposeCalled = false; |
| await tester.pumpWidget( |
| TestWidget((BuildContext context) { |
| disposeCalled = true; |
| context.dependOnInheritedWidgetOfExactType<InheritedWidget>(); |
| }), |
| ); |
| await tester.pumpWidget(Container()); |
| expect(disposeCalled, isTrue); |
| expect(tester.takeException(), isFlutterError); |
| }); |
| |
| testWidgets('getElementForInheritedWidgetOfExactType() called from dispose() throws error', (WidgetTester tester) async { |
| bool disposeCalled = false; |
| await tester.pumpWidget( |
| TestWidget((BuildContext context) { |
| disposeCalled = true; |
| context.getElementForInheritedWidgetOfExactType<InheritedWidget>(); |
| }), |
| ); |
| await tester.pumpWidget(Container()); |
| expect(disposeCalled, isTrue); |
| expect(tester.takeException(), isFlutterError); |
| }); |
| |
| testWidgets('findAncestorWidgetOfExactType() called from dispose() throws error', (WidgetTester tester) async { |
| bool disposeCalled = false; |
| await tester.pumpWidget( |
| TestWidget((BuildContext context) { |
| disposeCalled = true; |
| context.findAncestorWidgetOfExactType<Container>(); |
| }), |
| ); |
| await tester.pumpWidget(Container()); |
| expect(disposeCalled, isTrue); |
| expect(tester.takeException(), isFlutterError); |
| }); |
| |
| testWidgets('findAncestorStateOfType() called from dispose() throws error', (WidgetTester tester) async { |
| bool disposeCalled = false; |
| await tester.pumpWidget( |
| TestWidget((BuildContext context) { |
| disposeCalled = true; |
| context.findAncestorStateOfType<State>(); |
| }), |
| ); |
| await tester.pumpWidget(Container()); |
| expect(disposeCalled, isTrue); |
| expect(tester.takeException(), isFlutterError); |
| }); |
| |
| testWidgets('findAncestorRenderObjectOfType() called from dispose() throws error', (WidgetTester tester) async { |
| bool disposeCalled = false; |
| await tester.pumpWidget( |
| TestWidget((BuildContext context) { |
| disposeCalled = true; |
| context.findAncestorRenderObjectOfType<RenderObject>(); |
| }), |
| ); |
| await tester.pumpWidget(Container()); |
| expect(disposeCalled, isTrue); |
| expect(tester.takeException(), isFlutterError); |
| }); |
| |
| testWidgets('visitAncestorElements() called from dispose() throws error', (WidgetTester tester) async { |
| bool disposeCalled = false; |
| await tester.pumpWidget( |
| TestWidget((BuildContext context) { |
| disposeCalled = true; |
| context.visitAncestorElements((Element element) => true); |
| }), |
| ); |
| await tester.pumpWidget(Container()); |
| expect(disposeCalled, isTrue); |
| expect(tester.takeException(), isFlutterError); |
| }); |
| |
| testWidgets('dispose() method does not unconditionally throw an error', (WidgetTester tester) async { |
| bool disposeCalled = false; |
| await tester.pumpWidget( |
| TestWidget((BuildContext context) { |
| disposeCalled = true; |
| }), |
| ); |
| await tester.pumpWidget(Container()); |
| expect(disposeCalled, isTrue); |
| }); |
| |
| |
| |
| } |