| // 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/rendering.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart'; |
| |
| void main() { |
| testWidgets('runApp uses deprecated pipelineOwner and renderView', (WidgetTester tester) async { |
| runApp(const SizedBox()); |
| final RenderObject renderObject = tester.renderObject(find.byType(SizedBox)); |
| |
| RenderObject parent = renderObject; |
| while (parent.parent != null) { |
| parent = parent.parent!; |
| } |
| expect(parent, isA<RenderView>()); |
| expect(parent, equals(tester.binding.renderView)); |
| |
| expect(renderObject.owner, equals(tester.binding.pipelineOwner)); |
| }); |
| |
| testWidgets('can manually attach RootWidget to build owner', (WidgetTester tester) async { |
| expect(find.byType(ColoredBox), findsNothing); |
| |
| final RootWidget rootWidget = RootWidget( |
| child: View( |
| view: FakeFlutterView(tester.view), |
| child: const ColoredBox(color: Colors.orange), |
| ), |
| ); |
| tester.binding.attachToBuildOwner(rootWidget); |
| await tester.pump(); |
| expect(find.byType(ColoredBox), findsOneWidget); |
| expect(tester.binding.rootElement!.widget, equals(rootWidget)); |
| expect(tester.element(find.byType(ColoredBox)).owner, equals(tester.binding.buildOwner)); |
| }); |
| |
| testWidgets('runApp throws if given a View', |
| experimentalLeakTesting: LeakTesting.settings.withIgnoredAll(), // The test leaks by design because of exception. |
| (WidgetTester tester) async { |
| runApp( |
| View( |
| view: FakeFlutterView(tester.view), |
| child: const SizedBox.shrink(), |
| ), |
| ); |
| expect( |
| tester.takeException(), |
| isFlutterError.having( |
| (FlutterError e) => e.message, |
| 'message', |
| contains('passing it to "runWidget" instead of "runApp"'), |
| ), |
| ); |
| }); |
| |
| testWidgets('runWidget throws if not given a View', (WidgetTester tester) async { |
| runWidget(const SizedBox.shrink()); |
| expect( |
| tester.takeException(), |
| isFlutterError.having( |
| (FlutterError e) => e.message, |
| 'message', |
| contains('Try wrapping your widget in a View widget'), |
| ), |
| ); |
| }); |
| |
| testWidgets('runWidget does not throw if given a View', (WidgetTester tester) async { |
| runWidget( |
| View( |
| view: FakeFlutterView(tester.view), |
| child: const SizedBox.shrink(), |
| ), |
| ); |
| expect(find.byType(View), findsOne); |
| }); |
| |
| testWidgets('can call runWidget with an empty ViewCollection', (WidgetTester tester) async { |
| runWidget(const ViewCollection(views: <Widget>[])); |
| expect(find.byType(ViewCollection), findsOne); |
| }); |
| } |
| |
| class FakeFlutterView extends TestFlutterView { |
| FakeFlutterView(TestFlutterView view) : super(view: view, display: view.display, platformDispatcher: view.platformDispatcher); |
| } |