| // 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/foundation.dart'; |
| import 'package:flutter/material.dart'; |
| import 'package:flutter/services.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| class TestIntent extends Intent { |
| const TestIntent(); |
| } |
| |
| class TestAction extends Action<Intent> { |
| TestAction(); |
| |
| int calls = 0; |
| |
| @override |
| void invoke(Intent intent) { |
| calls += 1; |
| } |
| } |
| |
| void main() { |
| testWidgets('WidgetsApp with builder only', (WidgetTester tester) async { |
| final GlobalKey key = GlobalKey(); |
| await tester.pumpWidget( |
| WidgetsApp( |
| key: key, |
| builder: (BuildContext context, Widget? child) { |
| return const Placeholder(); |
| }, |
| color: const Color(0xFF123456), |
| ), |
| ); |
| expect(find.byKey(key), findsOneWidget); |
| }); |
| |
| testWidgets('WidgetsApp default key bindings', (WidgetTester tester) async { |
| bool? checked = false; |
| final GlobalKey key = GlobalKey(); |
| await tester.pumpWidget( |
| WidgetsApp( |
| key: key, |
| builder: (BuildContext context, Widget? child) { |
| return Material( |
| child: Checkbox( |
| value: checked, |
| autofocus: true, |
| onChanged: (bool? value) { |
| checked = value; |
| }, |
| ), |
| ); |
| }, |
| color: const Color(0xFF123456), |
| ), |
| ); |
| await tester.pump(); // Wait for focus to take effect. |
| await tester.sendKeyEvent(LogicalKeyboardKey.space); |
| await tester.pumpAndSettle(); |
| // Default key mapping worked. |
| expect(checked, isTrue); |
| }); |
| |
| testWidgets('WidgetsApp can override default key bindings', (WidgetTester tester) async { |
| final action = TestAction(); |
| bool? checked = false; |
| final GlobalKey key = GlobalKey(); |
| await tester.pumpWidget( |
| WidgetsApp( |
| key: key, |
| actions: <Type, Action<Intent>>{TestIntent: action}, |
| shortcuts: const <ShortcutActivator, Intent>{ |
| SingleActivator(LogicalKeyboardKey.space): TestIntent(), |
| }, |
| builder: (BuildContext context, Widget? child) { |
| return Material( |
| child: Checkbox( |
| value: checked, |
| autofocus: true, |
| onChanged: (bool? value) { |
| checked = value; |
| }, |
| ), |
| ); |
| }, |
| color: const Color(0xFF123456), |
| ), |
| ); |
| await tester.pump(); |
| |
| await tester.sendKeyEvent(LogicalKeyboardKey.space); |
| await tester.pumpAndSettle(); |
| // Default key mapping was not invoked. |
| expect(checked, isFalse); |
| // Overridden mapping was invoked. |
| expect(action.calls, equals(1)); |
| }); |
| |
| testWidgets('WidgetsApp default activation key mappings work', (WidgetTester tester) async { |
| bool? checked = false; |
| |
| await tester.pumpWidget( |
| WidgetsApp( |
| builder: (BuildContext context, Widget? child) { |
| return Material( |
| child: Checkbox( |
| value: checked, |
| autofocus: true, |
| onChanged: (bool? value) { |
| checked = value; |
| }, |
| ), |
| ); |
| }, |
| color: const Color(0xFF123456), |
| ), |
| ); |
| await tester.pump(); |
| |
| // Test three default buttons for the activation action. |
| await tester.sendKeyEvent(LogicalKeyboardKey.space); |
| await tester.pumpAndSettle(); |
| expect(checked, isTrue); |
| |
| // Only space is used as an activation key on web. |
| if (kIsWeb) { |
| return; |
| } |
| |
| checked = false; |
| await tester.sendKeyEvent(LogicalKeyboardKey.enter); |
| await tester.pumpAndSettle(); |
| expect(checked, isTrue); |
| |
| checked = false; |
| await tester.sendKeyEvent(LogicalKeyboardKey.numpadEnter); |
| await tester.pumpAndSettle(); |
| expect(checked, isTrue); |
| |
| checked = false; |
| await tester.sendKeyEvent(LogicalKeyboardKey.gameButtonA); |
| await tester.pumpAndSettle(); |
| expect(checked, isTrue); |
| |
| checked = false; |
| await tester.sendKeyEvent(LogicalKeyboardKey.select); |
| await tester.pumpAndSettle(); |
| expect(checked, isTrue); |
| }, variant: KeySimulatorTransitModeVariant.all()); |
| |
| testWidgets('Title is not created if title is not passed and kIsWeb', ( |
| WidgetTester tester, |
| ) async { |
| await tester.pumpWidget( |
| WidgetsApp( |
| color: const Color(0xFF123456), |
| builder: (BuildContext context, Widget? child) => Container(), |
| ), |
| ); |
| |
| expect(find.byType(Title), kIsWeb ? findsNothing : findsOneWidget); |
| }); |
| |
| group('error control test', () { |
| Future<void> expectFlutterError({ |
| required GlobalKey<NavigatorState> key, |
| required Widget widget, |
| required WidgetTester tester, |
| required String errorMessage, |
| }) async { |
| await tester.pumpWidget(widget); |
| late FlutterError error; |
| try { |
| key.currentState!.pushNamed('/path'); |
| } on FlutterError catch (e) { |
| error = e; |
| } finally { |
| expect(error, isNotNull); |
| expect(error, isFlutterError); |
| expect(error.toStringDeep(), errorMessage); |
| } |
| } |
| |
| testWidgets('push unknown route when onUnknownRoute is null', (WidgetTester tester) async { |
| final key = GlobalKey<NavigatorState>(); |
| expectFlutterError( |
| key: key, |
| tester: tester, |
| widget: MaterialApp(navigatorKey: key, home: Container(), onGenerateRoute: (_) => null), |
| errorMessage: |
| 'FlutterError\n' |
| ' Could not find a generator for route RouteSettings("/path", null)\n' |
| ' in the _WidgetsAppState.\n' |
| ' Make sure your root app widget has provided a way to generate\n' |
| ' this route.\n' |
| ' Generators for routes are searched for in the following order:\n' |
| ' 1. For the "/" route, the "home" property, if non-null, is used.\n' |
| ' 2. Otherwise, the "routes" table is used, if it has an entry for\n' |
| ' the route.\n' |
| ' 3. Otherwise, onGenerateRoute is called. It should return a\n' |
| ' non-null value for any valid route not handled by "home" and\n' |
| ' "routes".\n' |
| ' 4. Finally if all else fails onUnknownRoute is called.\n' |
| ' Unfortunately, onUnknownRoute was not set.\n', |
| ); |
| }); |
| |
| testWidgets('push unknown route when onUnknownRoute returns null', (WidgetTester tester) async { |
| final key = GlobalKey<NavigatorState>(); |
| expectFlutterError( |
| key: key, |
| tester: tester, |
| widget: MaterialApp( |
| navigatorKey: key, |
| home: Container(), |
| onGenerateRoute: (_) => null, |
| onUnknownRoute: (_) => null, |
| ), |
| errorMessage: |
| 'FlutterError\n' |
| ' The onUnknownRoute callback returned null.\n' |
| ' When the _WidgetsAppState requested the route\n' |
| ' RouteSettings("/path", null) from its onUnknownRoute callback,\n' |
| ' the callback returned null. Such callbacks must never return\n' |
| ' null.\n', |
| ); |
| }); |
| }); |
| |
| testWidgets('WidgetsApp can customize initial routes', (WidgetTester tester) async { |
| final navigatorKey = GlobalKey<NavigatorState>(); |
| await tester.pumpWidget( |
| WidgetsApp( |
| navigatorKey: navigatorKey, |
| onGenerateInitialRoutes: (String initialRoute) { |
| expect(initialRoute, '/abc'); |
| return <Route<void>>[ |
| PageRouteBuilder<void>( |
| pageBuilder: |
| ( |
| BuildContext context, |
| Animation<double> animation, |
| Animation<double> secondaryAnimation, |
| ) { |
| return const Text('non-regular page one'); |
| }, |
| ), |
| PageRouteBuilder<void>( |
| pageBuilder: |
| ( |
| BuildContext context, |
| Animation<double> animation, |
| Animation<double> secondaryAnimation, |
| ) { |
| return const Text('non-regular page two'); |
| }, |
| ), |
| ]; |
| }, |
| initialRoute: '/abc', |
| onGenerateRoute: (RouteSettings settings) { |
| return PageRouteBuilder<void>( |
| pageBuilder: |
| ( |
| BuildContext context, |
| Animation<double> animation, |
| Animation<double> secondaryAnimation, |
| ) { |
| return const Text('regular page'); |
| }, |
| ); |
| }, |
| color: const Color(0xFF123456), |
| ), |
| ); |
| expect(find.text('non-regular page two'), findsOneWidget); |
| expect(find.text('non-regular page one'), findsNothing); |
| expect(find.text('regular page'), findsNothing); |
| navigatorKey.currentState!.pop(); |
| await tester.pumpAndSettle(); |
| expect(find.text('non-regular page two'), findsNothing); |
| expect(find.text('non-regular page one'), findsOneWidget); |
| expect(find.text('regular page'), findsNothing); |
| }); |
| |
| testWidgets('WidgetsApp.router works', (WidgetTester tester) async { |
| final provider = PlatformRouteInformationProvider( |
| initialRouteInformation: RouteInformation(uri: Uri.parse('initial')), |
| ); |
| addTearDown(provider.dispose); |
| final delegate = SimpleNavigatorRouterDelegate( |
| builder: (BuildContext context, RouteInformation information) { |
| return Text(information.uri.toString()); |
| }, |
| onPopPage: (Route<void> route, void result, SimpleNavigatorRouterDelegate delegate) { |
| delegate.routeInformation = RouteInformation(uri: Uri.parse('popped')); |
| return route.didPop(result); |
| }, |
| ); |
| addTearDown(delegate.dispose); |
| await tester.pumpWidget( |
| WidgetsApp.router( |
| routeInformationProvider: provider, |
| routeInformationParser: SimpleRouteInformationParser(), |
| routerDelegate: delegate, |
| color: const Color(0xFF123456), |
| ), |
| ); |
| expect(find.text('initial'), findsOneWidget); |
| |
| // Simulate android back button intent. |
| final ByteData message = const JSONMethodCodec().encodeMethodCall(const MethodCall('popRoute')); |
| await tester.binding.defaultBinaryMessenger.handlePlatformMessage( |
| 'flutter/navigation', |
| message, |
| (_) {}, |
| ); |
| await tester.pumpAndSettle(); |
| expect(find.text('popped'), findsOneWidget); |
| }); |
| |
| testWidgets('WidgetsApp.router route information parser is optional', ( |
| WidgetTester tester, |
| ) async { |
| final delegate = SimpleNavigatorRouterDelegate( |
| builder: (BuildContext context, RouteInformation information) { |
| return Text(information.uri.toString()); |
| }, |
| onPopPage: (Route<void> route, void result, SimpleNavigatorRouterDelegate delegate) { |
| delegate.routeInformation = RouteInformation(uri: Uri.parse('popped')); |
| return route.didPop(result); |
| }, |
| ); |
| addTearDown(delegate.dispose); |
| delegate.routeInformation = RouteInformation(uri: Uri.parse('initial')); |
| await tester.pumpWidget( |
| WidgetsApp.router(routerDelegate: delegate, color: const Color(0xFF123456)), |
| ); |
| expect(find.text('initial'), findsOneWidget); |
| |
| // Simulate android back button intent. |
| final ByteData message = const JSONMethodCodec().encodeMethodCall(const MethodCall('popRoute')); |
| await tester.binding.defaultBinaryMessenger.handlePlatformMessage( |
| 'flutter/navigation', |
| message, |
| (_) {}, |
| ); |
| await tester.pumpAndSettle(); |
| expect(find.text('popped'), findsOneWidget); |
| }); |
| |
| testWidgets( |
| 'WidgetsApp.router throw if route information provider is provided but no route information parser', |
| (WidgetTester tester) async { |
| final delegate = SimpleNavigatorRouterDelegate( |
| builder: (BuildContext context, RouteInformation information) { |
| return Text(information.uri.toString()); |
| }, |
| onPopPage: (Route<void> route, void result, SimpleNavigatorRouterDelegate delegate) { |
| delegate.routeInformation = RouteInformation(uri: Uri.parse('popped')); |
| return route.didPop(result); |
| }, |
| ); |
| addTearDown(delegate.dispose); |
| delegate.routeInformation = RouteInformation(uri: Uri.parse('initial')); |
| final provider = PlatformRouteInformationProvider( |
| initialRouteInformation: RouteInformation(uri: Uri.parse('initial')), |
| ); |
| addTearDown(provider.dispose); |
| await expectLater(() async { |
| await tester.pumpWidget( |
| WidgetsApp.router( |
| routeInformationProvider: provider, |
| routerDelegate: delegate, |
| color: const Color(0xFF123456), |
| ), |
| ); |
| }, throwsAssertionError); |
| }, |
| ); |
| |
| testWidgets( |
| 'WidgetsApp.router throw if route configuration is provided along with other delegate', |
| (WidgetTester tester) async { |
| final delegate = SimpleNavigatorRouterDelegate( |
| builder: (BuildContext context, RouteInformation information) { |
| return Text(information.uri.toString()); |
| }, |
| onPopPage: (Route<void> route, void result, SimpleNavigatorRouterDelegate delegate) { |
| delegate.routeInformation = RouteInformation(uri: Uri.parse('popped')); |
| return route.didPop(result); |
| }, |
| ); |
| addTearDown(delegate.dispose); |
| delegate.routeInformation = RouteInformation(uri: Uri.parse('initial')); |
| final routerConfig = RouterConfig<RouteInformation>(routerDelegate: delegate); |
| await expectLater(() async { |
| await tester.pumpWidget( |
| WidgetsApp.router( |
| routerDelegate: delegate, |
| routerConfig: routerConfig, |
| color: const Color(0xFF123456), |
| ), |
| ); |
| }, throwsAssertionError); |
| }, |
| ); |
| |
| testWidgets('WidgetsApp.router router config works', (WidgetTester tester) async { |
| final delegate = SimpleNavigatorRouterDelegate( |
| builder: (BuildContext context, RouteInformation information) { |
| return Text(information.uri.toString()); |
| }, |
| onPopPage: (Route<void> route, void result, SimpleNavigatorRouterDelegate delegate) { |
| delegate.routeInformation = RouteInformation(uri: Uri.parse('popped')); |
| return route.didPop(result); |
| }, |
| ); |
| addTearDown(delegate.dispose); |
| final provider = PlatformRouteInformationProvider( |
| initialRouteInformation: RouteInformation(uri: Uri.parse('initial')), |
| ); |
| addTearDown(provider.dispose); |
| final routerConfig = RouterConfig<RouteInformation>( |
| routeInformationProvider: provider, |
| routeInformationParser: SimpleRouteInformationParser(), |
| routerDelegate: delegate, |
| backButtonDispatcher: RootBackButtonDispatcher(), |
| ); |
| await tester.pumpWidget( |
| WidgetsApp.router(routerConfig: routerConfig, color: const Color(0xFF123456)), |
| ); |
| expect(find.text('initial'), findsOneWidget); |
| |
| // Simulate android back button intent. |
| final ByteData message = const JSONMethodCodec().encodeMethodCall(const MethodCall('popRoute')); |
| await tester.binding.defaultBinaryMessenger.handlePlatformMessage( |
| 'flutter/navigation', |
| message, |
| (_) {}, |
| ); |
| await tester.pumpAndSettle(); |
| expect(find.text('popped'), findsOneWidget); |
| }); |
| |
| testWidgets('WidgetsApp.router has correct default', (WidgetTester tester) async { |
| final delegate = SimpleNavigatorRouterDelegate( |
| builder: (BuildContext context, RouteInformation information) { |
| return Text(information.uri.toString()); |
| }, |
| onPopPage: (Route<Object?> route, Object? result, SimpleNavigatorRouterDelegate delegate) => |
| true, |
| ); |
| addTearDown(delegate.dispose); |
| await tester.pumpWidget( |
| WidgetsApp.router( |
| routeInformationParser: SimpleRouteInformationParser(), |
| routerDelegate: delegate, |
| color: const Color(0xFF123456), |
| ), |
| ); |
| expect(find.text('/'), findsOneWidget); |
| }); |
| |
| testWidgets('WidgetsApp has correct default ScrollBehavior', (WidgetTester tester) async { |
| late BuildContext capturedContext; |
| await tester.pumpWidget( |
| WidgetsApp( |
| builder: (BuildContext context, Widget? child) { |
| capturedContext = context; |
| return const Placeholder(); |
| }, |
| color: const Color(0xFF123456), |
| ), |
| ); |
| expect(ScrollConfiguration.of(capturedContext).runtimeType, ScrollBehavior); |
| }); |
| |
| test('basicLocaleListResolution', () { |
| // Matches exactly for language code. |
| expect( |
| basicLocaleListResolution( |
| <Locale>[const Locale('zh'), const Locale('un'), const Locale('en')], |
| <Locale>[const Locale('en')], |
| ), |
| const Locale('en'), |
| ); |
| |
| // Matches exactly for language code and country code. |
| expect( |
| basicLocaleListResolution( |
| <Locale>[const Locale('en'), const Locale('en', 'US')], |
| <Locale>[const Locale('en', 'US')], |
| ), |
| const Locale('en', 'US'), |
| ); |
| |
| // Matches language+script over language+country |
| expect( |
| basicLocaleListResolution( |
| <Locale>[ |
| const Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hant', countryCode: 'HK'), |
| ], |
| <Locale>[ |
| const Locale.fromSubtags(languageCode: 'zh', countryCode: 'HK'), |
| const Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hant'), |
| ], |
| ), |
| const Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hant'), |
| ); |
| |
| // Matches exactly for language code, script code and country code. |
| expect( |
| basicLocaleListResolution( |
| <Locale>[ |
| const Locale.fromSubtags(languageCode: 'zh'), |
| const Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hant', countryCode: 'TW'), |
| ], |
| <Locale>[ |
| const Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hant', countryCode: 'TW'), |
| ], |
| ), |
| const Locale.fromSubtags(languageCode: 'zh', scriptCode: 'Hant', countryCode: 'TW'), |
| ); |
| |
| // Selects for country code if the language code is not found in the |
| // preferred locales list. |
| expect( |
| basicLocaleListResolution( |
| <Locale>[ |
| const Locale.fromSubtags(languageCode: 'en'), |
| const Locale.fromSubtags(languageCode: 'ar', countryCode: 'tn'), |
| ], |
| <Locale>[const Locale.fromSubtags(languageCode: 'fr', countryCode: 'tn')], |
| ), |
| const Locale.fromSubtags(languageCode: 'fr', countryCode: 'tn'), |
| ); |
| |
| // Selects first (default) locale when no match at all is found. |
| expect( |
| basicLocaleListResolution( |
| <Locale>[const Locale('tn')], |
| <Locale>[const Locale('zh'), const Locale('un'), const Locale('en')], |
| ), |
| const Locale('zh'), |
| ); |
| }); |
| |
| testWidgets("WidgetsApp reports an exception if the selected locale isn't supported", ( |
| WidgetTester tester, |
| ) async { |
| late final List<Locale>? localesArg; |
| late final Iterable<Locale> supportedLocalesArg; |
| await tester.pumpWidget( |
| MaterialApp( |
| // This uses a MaterialApp because it introduces some actual localizations. |
| localeListResolutionCallback: (List<Locale>? locales, Iterable<Locale> supportedLocales) { |
| localesArg = locales; |
| supportedLocalesArg = supportedLocales; |
| return const Locale('C_UTF-8'); |
| }, |
| builder: (BuildContext context, Widget? child) => const Placeholder(), |
| color: const Color(0xFF000000), |
| ), |
| ); |
| if (!kIsWeb) { |
| // On web, `flutter test` does not guarantee a particular locale, but |
| // when using `flutter_tester`, we guarantee that it's en-US, zh-CN. |
| // https://github.com/flutter/flutter/issues/93290 |
| expect(localesArg, const <Locale>[Locale('en', 'US'), Locale('zh', 'CN')]); |
| } |
| expect(supportedLocalesArg, const <Locale>[Locale('en', 'US')]); |
| expect( |
| tester.takeException(), |
| "Warning: This application's locale, C_UTF-8, is not supported by all of its localization delegates.", |
| ); |
| }); |
| |
| testWidgets("WidgetsApp doesn't have dependency on MediaQuery", (WidgetTester tester) async { |
| var routeBuildCount = 0; |
| |
| final Widget widget = WidgetsApp( |
| color: const Color.fromARGB(255, 255, 255, 255), |
| onGenerateRoute: (_) { |
| return PageRouteBuilder<void>( |
| pageBuilder: (_, _, _) { |
| routeBuildCount++; |
| return const Placeholder(); |
| }, |
| ); |
| }, |
| ); |
| |
| await tester.pumpWidget( |
| MediaQuery( |
| data: const MediaQueryData(textScaler: TextScaler.linear(10)), |
| child: widget, |
| ), |
| ); |
| |
| expect(routeBuildCount, equals(1)); |
| |
| await tester.pumpWidget( |
| MediaQuery( |
| data: const MediaQueryData(textScaler: TextScaler.linear(20)), |
| child: widget, |
| ), |
| ); |
| |
| expect(routeBuildCount, equals(1)); |
| }); |
| |
| testWidgets( |
| 'WidgetsApp provides meta based shortcuts for iOS and macOS', |
| (WidgetTester tester) async { |
| final focusNode = FocusNode(); |
| addTearDown(focusNode.dispose); |
| |
| final selectAllSpy = SelectAllSpy(); |
| final copySpy = CopySpy(); |
| final pasteSpy = PasteSpy(); |
| final actions = <Type, Action<Intent>>{ |
| // Copy Paste |
| SelectAllTextIntent: selectAllSpy, |
| CopySelectionTextIntent: copySpy, |
| PasteTextIntent: pasteSpy, |
| }; |
| await tester.pumpWidget( |
| WidgetsApp( |
| builder: (BuildContext context, Widget? child) { |
| return Actions( |
| actions: actions, |
| child: Focus(focusNode: focusNode, child: const Placeholder()), |
| ); |
| }, |
| color: const Color(0xFF123456), |
| ), |
| ); |
| focusNode.requestFocus(); |
| await tester.pump(); |
| expect(selectAllSpy.invoked, isFalse); |
| expect(copySpy.invoked, isFalse); |
| expect(pasteSpy.invoked, isFalse); |
| |
| // Select all. |
| await tester.sendKeyDownEvent(LogicalKeyboardKey.metaLeft); |
| await tester.sendKeyDownEvent(LogicalKeyboardKey.keyA); |
| await tester.sendKeyUpEvent(LogicalKeyboardKey.keyA); |
| await tester.sendKeyUpEvent(LogicalKeyboardKey.metaLeft); |
| await tester.pump(); |
| |
| expect(selectAllSpy.invoked, isTrue); |
| expect(copySpy.invoked, isFalse); |
| expect(pasteSpy.invoked, isFalse); |
| |
| // Copy. |
| await tester.sendKeyDownEvent(LogicalKeyboardKey.metaLeft); |
| await tester.sendKeyDownEvent(LogicalKeyboardKey.keyC); |
| await tester.sendKeyUpEvent(LogicalKeyboardKey.keyC); |
| await tester.sendKeyUpEvent(LogicalKeyboardKey.metaLeft); |
| await tester.pump(); |
| |
| expect(selectAllSpy.invoked, isTrue); |
| expect(copySpy.invoked, isTrue); |
| expect(pasteSpy.invoked, isFalse); |
| |
| // Paste. |
| await tester.sendKeyDownEvent(LogicalKeyboardKey.metaLeft); |
| await tester.sendKeyDownEvent(LogicalKeyboardKey.keyV); |
| await tester.sendKeyUpEvent(LogicalKeyboardKey.keyV); |
| await tester.sendKeyUpEvent(LogicalKeyboardKey.metaLeft); |
| await tester.pump(); |
| |
| expect(selectAllSpy.invoked, isTrue); |
| expect(copySpy.invoked, isTrue); |
| expect(pasteSpy.invoked, isTrue); |
| }, |
| variant: const TargetPlatformVariant(<TargetPlatform>{ |
| TargetPlatform.iOS, |
| TargetPlatform.macOS, |
| }), |
| ); |
| |
| group('Android Predictive Back', () { |
| Future<void> setAppLifeCycleState(AppLifecycleState state) async { |
| final ByteData? message = const StringCodec().encodeMessage(state.toString()); |
| await TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.handlePlatformMessage( |
| 'flutter/lifecycle', |
| message, |
| (ByteData? data) {}, |
| ); |
| } |
| |
| final frameworkHandlesBacks = <bool>[]; |
| setUp(() async { |
| frameworkHandlesBacks.clear(); |
| TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler( |
| SystemChannels.platform, |
| (MethodCall methodCall) async { |
| if (methodCall.method == 'SystemNavigator.setFrameworkHandlesBack') { |
| expect(methodCall.arguments, isA<bool>()); |
| frameworkHandlesBacks.add(methodCall.arguments as bool); |
| } |
| return; |
| }, |
| ); |
| }); |
| |
| tearDown(() async { |
| TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler( |
| SystemChannels.platform, |
| null, |
| ); |
| await setAppLifeCycleState(AppLifecycleState.resumed); |
| }); |
| |
| testWidgets( |
| 'WidgetsApp calls setFrameworkHandlesBack only when app is ready', |
| (WidgetTester tester) async { |
| // Start in the `resumed` state, where setFrameworkHandlesBack should be |
| // called like normal. |
| await setAppLifeCycleState(AppLifecycleState.resumed); |
| |
| late BuildContext currentContext; |
| await tester.pumpWidget( |
| WidgetsApp( |
| color: const Color(0xFF123456), |
| builder: (BuildContext context, Widget? child) { |
| currentContext = context; |
| return const Placeholder(); |
| }, |
| ), |
| ); |
| |
| expect(frameworkHandlesBacks, isEmpty); |
| |
| const NavigationNotification(canHandlePop: true).dispatch(currentContext); |
| await tester.pumpAndSettle(); |
| expect(frameworkHandlesBacks, isNotEmpty); |
| expect(frameworkHandlesBacks.last, isTrue); |
| |
| const NavigationNotification(canHandlePop: false).dispatch(currentContext); |
| await tester.pumpAndSettle(); |
| expect(frameworkHandlesBacks.last, isFalse); |
| |
| // Set the app state to inactive, where setFrameworkHandlesBack is still |
| // called. This could happen when responding to a tap on a notification |
| // when the app is not active and immediately navigating, for example. |
| // See https://github.com/flutter/flutter/pull/154313. |
| await setAppLifeCycleState(AppLifecycleState.inactive); |
| |
| final int inactiveStartCallsLength = frameworkHandlesBacks.length; |
| const NavigationNotification(canHandlePop: true).dispatch(currentContext); |
| await tester.pumpAndSettle(); |
| expect(frameworkHandlesBacks, hasLength(inactiveStartCallsLength + 1)); |
| |
| const NavigationNotification(canHandlePop: false).dispatch(currentContext); |
| await tester.pumpAndSettle(); |
| expect(frameworkHandlesBacks, hasLength(inactiveStartCallsLength + 2)); |
| |
| // Set the app state to detached, where setFrameworkHandlesBack shouldn't |
| // be called. |
| await setAppLifeCycleState(AppLifecycleState.detached); |
| |
| final int finalCallsLength = frameworkHandlesBacks.length; |
| const NavigationNotification(canHandlePop: true).dispatch(currentContext); |
| await tester.pumpAndSettle(); |
| expect(frameworkHandlesBacks, hasLength(finalCallsLength)); |
| |
| const NavigationNotification(canHandlePop: false).dispatch(currentContext); |
| await tester.pumpAndSettle(); |
| expect(frameworkHandlesBacks, hasLength(finalCallsLength)); |
| }, |
| skip: kIsWeb, // [intended] predictive back is only native Android. |
| variant: const TargetPlatformVariant(<TargetPlatform>{TargetPlatform.android}), |
| ); |
| }); |
| |
| testWidgets('WidgetsApp does not crash at zero area', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| Center( |
| child: SizedBox.shrink( |
| child: WidgetsApp(builder: (_, _) => const Text('X'), color: const Color(0xFFAABBCC)), |
| ), |
| ), |
| ); |
| expect(tester.getSize(find.byType(WidgetsApp)), Size.zero); |
| }); |
| } |
| |
| typedef SimpleRouterDelegateBuilder = |
| Widget Function(BuildContext context, RouteInformation information); |
| typedef SimpleNavigatorRouterDelegatePopPage<T> = |
| bool Function(Route<T> route, T result, SimpleNavigatorRouterDelegate delegate); |
| |
| class SelectAllSpy extends Action<SelectAllTextIntent> { |
| bool invoked = false; |
| @override |
| void invoke(SelectAllTextIntent intent) { |
| invoked = true; |
| } |
| } |
| |
| class CopySpy extends Action<CopySelectionTextIntent> { |
| bool invoked = false; |
| @override |
| void invoke(CopySelectionTextIntent intent) { |
| invoked = true; |
| } |
| } |
| |
| class PasteSpy extends Action<PasteTextIntent> { |
| bool invoked = false; |
| @override |
| void invoke(PasteTextIntent intent) { |
| invoked = true; |
| } |
| } |
| |
| class SimpleRouteInformationParser extends RouteInformationParser<RouteInformation> { |
| SimpleRouteInformationParser(); |
| |
| @override |
| Future<RouteInformation> parseRouteInformation(RouteInformation information) { |
| return SynchronousFuture<RouteInformation>(information); |
| } |
| |
| @override |
| RouteInformation restoreRouteInformation(RouteInformation configuration) { |
| return configuration; |
| } |
| } |
| |
| class SimpleNavigatorRouterDelegate extends RouterDelegate<RouteInformation> |
| with PopNavigatorRouterDelegateMixin<RouteInformation>, ChangeNotifier { |
| SimpleNavigatorRouterDelegate({required this.builder, required this.onPopPage}); |
| |
| @override |
| GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>(); |
| |
| RouteInformation get routeInformation => _routeInformation; |
| late RouteInformation _routeInformation; |
| set routeInformation(RouteInformation newValue) { |
| _routeInformation = newValue; |
| notifyListeners(); |
| } |
| |
| final SimpleRouterDelegateBuilder builder; |
| final SimpleNavigatorRouterDelegatePopPage<void> onPopPage; |
| |
| @override |
| Future<void> setNewRoutePath(RouteInformation configuration) { |
| _routeInformation = configuration; |
| return SynchronousFuture<void>(null); |
| } |
| |
| bool _handlePopPage(Route<void> route, void data) { |
| return onPopPage(route, data, this); |
| } |
| |
| @override |
| Widget build(BuildContext context) { |
| return Navigator( |
| key: navigatorKey, |
| onPopPage: _handlePopPage, |
| pages: <Page<void>>[ |
| // We need at least two pages for the pop to propagate through. |
| // Otherwise, the navigator will bubble the pop to the system navigator. |
| const MaterialPage<void>(child: Text('base')), |
| MaterialPage<void>( |
| key: ValueKey<String>(routeInformation.uri.toString()), |
| child: builder(context, routeInformation), |
| ), |
| ], |
| ); |
| } |
| } |
