| // 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/semantics.dart'; |
| import 'package:flutter/services.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| import 'package:flutter/cupertino.dart'; |
| import 'package:flutter/material.dart'; |
| |
| class StateMarker extends StatefulWidget { |
| const StateMarker({ Key? key, this.child }) : super(key: key); |
| |
| final Widget? child; |
| |
| @override |
| StateMarkerState createState() => StateMarkerState(); |
| } |
| |
| class StateMarkerState extends State<StateMarker> { |
| late String marker; |
| |
| @override |
| Widget build(BuildContext context) { |
| if (widget.child != null) |
| return widget.child!; |
| return Container(); |
| } |
| } |
| |
| void main() { |
| testWidgets('Can nest apps', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| const MaterialApp( |
| home: MaterialApp( |
| home: Text('Home sweet home'), |
| ), |
| ), |
| ); |
| |
| expect(find.text('Home sweet home'), findsOneWidget); |
| }); |
| |
| testWidgets('Focus handling', (WidgetTester tester) async { |
| final FocusNode focusNode = FocusNode(); |
| await tester.pumpWidget(MaterialApp( |
| home: Material( |
| child: Center( |
| child: TextField(focusNode: focusNode, autofocus: true), |
| ), |
| ), |
| )); |
| |
| expect(focusNode.hasFocus, isTrue); |
| }); |
| |
| testWidgets('Can place app inside FocusScope', (WidgetTester tester) async { |
| final FocusScopeNode focusScopeNode = FocusScopeNode(); |
| |
| await tester.pumpWidget(FocusScope( |
| autofocus: true, |
| node: focusScopeNode, |
| child: const MaterialApp( |
| home: Text('Home'), |
| ), |
| )); |
| |
| expect(find.text('Home'), findsOneWidget); |
| }); |
| |
| testWidgets('Can show grid without losing sync', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| const MaterialApp( |
| home: StateMarker(), |
| ), |
| ); |
| |
| final StateMarkerState state1 = tester.state(find.byType(StateMarker)); |
| state1.marker = 'original'; |
| |
| await tester.pumpWidget( |
| const MaterialApp( |
| debugShowMaterialGrid: true, |
| home: StateMarker(), |
| ), |
| ); |
| |
| final StateMarkerState state2 = tester.state(find.byType(StateMarker)); |
| expect(state1, equals(state2)); |
| expect(state2.marker, equals('original')); |
| }); |
| |
| testWidgets('Do not rebuild page during a route transition', (WidgetTester tester) async { |
| int buildCounter = 0; |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Builder( |
| builder: (BuildContext context) { |
| return Material( |
| child: ElevatedButton( |
| child: const Text('X'), |
| onPressed: () { Navigator.of(context)!.pushNamed('/next'); }, |
| ), |
| ); |
| } |
| ), |
| routes: <String, WidgetBuilder>{ |
| '/next': (BuildContext context) { |
| return Builder( |
| builder: (BuildContext context) { |
| ++buildCounter; |
| return const Text('Y'); |
| }, |
| ); |
| }, |
| }, |
| ), |
| ); |
| |
| expect(buildCounter, 0); |
| await tester.tap(find.text('X')); |
| expect(buildCounter, 0); |
| await tester.pump(); |
| expect(buildCounter, 1); |
| await tester.pump(const Duration(milliseconds: 10)); |
| expect(buildCounter, 1); |
| await tester.pump(const Duration(milliseconds: 10)); |
| expect(buildCounter, 1); |
| await tester.pump(const Duration(milliseconds: 10)); |
| expect(buildCounter, 1); |
| await tester.pump(const Duration(milliseconds: 10)); |
| expect(buildCounter, 1); |
| await tester.pump(const Duration(seconds: 1)); |
| expect(buildCounter, 1); |
| expect(find.text('Y'), findsOneWidget); |
| }); |
| |
| testWidgets('Do rebuild the home page if it changes', (WidgetTester tester) async { |
| int buildCounter = 0; |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Builder( |
| builder: (BuildContext context) { |
| ++buildCounter; |
| return const Text('A'); |
| } |
| ), |
| ), |
| ); |
| expect(buildCounter, 1); |
| expect(find.text('A'), findsOneWidget); |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Builder( |
| builder: (BuildContext context) { |
| ++buildCounter; |
| return const Text('B'); |
| } |
| ), |
| ), |
| ); |
| expect(buildCounter, 2); |
| expect(find.text('B'), findsOneWidget); |
| }); |
| |
| testWidgets('Do not rebuild the home page if it does not actually change', (WidgetTester tester) async { |
| int buildCounter = 0; |
| final Widget home = Builder( |
| builder: (BuildContext context) { |
| ++buildCounter; |
| return const Placeholder(); |
| } |
| ); |
| await tester.pumpWidget( |
| MaterialApp( |
| home: home, |
| ), |
| ); |
| expect(buildCounter, 1); |
| await tester.pumpWidget( |
| MaterialApp( |
| home: home, |
| ), |
| ); |
| expect(buildCounter, 1); |
| }); |
| |
| testWidgets('Do rebuild pages that come from the routes table if the MaterialApp changes', (WidgetTester tester) async { |
| int buildCounter = 0; |
| final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{ |
| '/': (BuildContext context) { |
| ++buildCounter; |
| return const Placeholder(); |
| }, |
| }; |
| await tester.pumpWidget( |
| MaterialApp( |
| routes: routes, |
| ), |
| ); |
| expect(buildCounter, 1); |
| await tester.pumpWidget( |
| MaterialApp( |
| routes: routes, |
| ), |
| ); |
| expect(buildCounter, 2); |
| }); |
| |
| testWidgets('Cannot pop the initial route', (WidgetTester tester) async { |
| await tester.pumpWidget(const MaterialApp(home: Text('Home'))); |
| |
| expect(find.text('Home'), findsOneWidget); |
| |
| final NavigatorState navigator = tester.state(find.byType(Navigator)); |
| final bool result = await navigator.maybePop(); |
| |
| expect(result, isFalse); |
| |
| expect(find.text('Home'), findsOneWidget); |
| }); |
| |
| testWidgets('Default initialRoute', (WidgetTester tester) async { |
| await tester.pumpWidget(MaterialApp(routes: <String, WidgetBuilder>{ |
| '/': (BuildContext context) => const Text('route "/"'), |
| })); |
| |
| expect(find.text('route "/"'), findsOneWidget); |
| }); |
| |
| testWidgets('One-step initial route', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| initialRoute: '/a', |
| routes: <String, WidgetBuilder>{ |
| '/': (BuildContext context) => const Text('route "/"'), |
| '/a': (BuildContext context) => const Text('route "/a"'), |
| '/a/b': (BuildContext context) => const Text('route "/a/b"'), |
| '/b': (BuildContext context) => const Text('route "/b"'), |
| }, |
| ), |
| ); |
| |
| expect(find.text('route "/"', skipOffstage: false), findsOneWidget); |
| expect(find.text('route "/a"'), findsOneWidget); |
| expect(find.text('route "/a/b"', skipOffstage: false), findsNothing); |
| expect(find.text('route "/b"', skipOffstage: false), findsNothing); |
| }); |
| |
| testWidgets('Return value from pop is correct', (WidgetTester tester) async { |
| late Future<Object?> result; |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Builder( |
| builder: (BuildContext context) { |
| return Material( |
| child: ElevatedButton( |
| child: const Text('X'), |
| onPressed: () async { |
| result = Navigator.of(context)!.pushNamed<Object?>('/a'); |
| }, |
| ), |
| ); |
| } |
| ), |
| routes: <String, WidgetBuilder>{ |
| '/a': (BuildContext context) { |
| return Material( |
| child: ElevatedButton( |
| child: const Text('Y'), |
| onPressed: () { |
| Navigator.of(context)!.pop('all done'); |
| }, |
| ), |
| ); |
| }, |
| }, |
| ), |
| ); |
| await tester.tap(find.text('X')); |
| await tester.pump(); |
| await tester.pump(const Duration(seconds: 1)); |
| expect(find.text('Y'), findsOneWidget); |
| await tester.tap(find.text('Y')); |
| await tester.pump(); |
| |
| expect(await result, equals('all done')); |
| }); |
| |
| testWidgets('Two-step initial route', (WidgetTester tester) async { |
| final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{ |
| '/': (BuildContext context) => const Text('route "/"'), |
| '/a': (BuildContext context) => const Text('route "/a"'), |
| '/a/b': (BuildContext context) => const Text('route "/a/b"'), |
| '/b': (BuildContext context) => const Text('route "/b"'), |
| }; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| initialRoute: '/a/b', |
| routes: routes, |
| ), |
| ); |
| expect(find.text('route "/"', skipOffstage: false), findsOneWidget); |
| expect(find.text('route "/a"', skipOffstage: false), findsOneWidget); |
| expect(find.text('route "/a/b"'), findsOneWidget); |
| expect(find.text('route "/b"', skipOffstage: false), findsNothing); |
| }); |
| |
| testWidgets('Initial route with missing step', (WidgetTester tester) async { |
| final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{ |
| '/': (BuildContext context) => const Text('route "/"'), |
| '/a': (BuildContext context) => const Text('route "/a"'), |
| '/a/b': (BuildContext context) => const Text('route "/a/b"'), |
| '/b': (BuildContext context) => const Text('route "/b"'), |
| }; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| initialRoute: '/a/b/c', |
| routes: routes, |
| ), |
| ); |
| final dynamic exception = tester.takeException(); |
| expect(exception, isA<String>()); |
| expect(exception.startsWith('Could not navigate to initial route.'), isTrue); |
| expect(find.text('route "/"'), findsOneWidget); |
| expect(find.text('route "/a"'), findsNothing); |
| expect(find.text('route "/a/b"'), findsNothing); |
| expect(find.text('route "/b"'), findsNothing); |
| }); |
| |
| testWidgets('Make sure initialRoute is only used the first time', (WidgetTester tester) async { |
| final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{ |
| '/': (BuildContext context) => const Text('route "/"'), |
| '/a': (BuildContext context) => const Text('route "/a"'), |
| '/b': (BuildContext context) => const Text('route "/b"'), |
| }; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| initialRoute: '/a', |
| routes: routes, |
| ), |
| ); |
| expect(find.text('route "/"', skipOffstage: false), findsOneWidget); |
| expect(find.text('route "/a"'), findsOneWidget); |
| expect(find.text('route "/b"', skipOffstage: false), findsNothing); |
| |
| // changing initialRoute has no effect |
| await tester.pumpWidget( |
| MaterialApp( |
| initialRoute: '/b', |
| routes: routes, |
| ), |
| ); |
| expect(find.text('route "/"', skipOffstage: false), findsOneWidget); |
| expect(find.text('route "/a"'), findsOneWidget); |
| expect(find.text('route "/b"', skipOffstage: false), findsNothing); |
| |
| // removing it has no effect |
| await tester.pumpWidget(MaterialApp(routes: routes)); |
| expect(find.text('route "/"', skipOffstage: false), findsOneWidget); |
| expect(find.text('route "/a"'), findsOneWidget); |
| expect(find.text('route "/b"', skipOffstage: false), findsNothing); |
| }); |
| |
| testWidgets('onGenerateRoute / onUnknownRoute', (WidgetTester tester) async { |
| final List<String> log = <String>[]; |
| await tester.pumpWidget( |
| MaterialApp( |
| onGenerateRoute: (RouteSettings settings) { |
| log.add('onGenerateRoute ${settings.name}'); |
| return null; |
| }, |
| onUnknownRoute: (RouteSettings settings) { |
| log.add('onUnknownRoute ${settings.name}'); |
| return null; |
| }, |
| ), |
| ); |
| expect(tester.takeException(), isFlutterError); |
| expect(log, <String>['onGenerateRoute /', 'onUnknownRoute /']); |
| |
| // Work-around for https://github.com/flutter/flutter/issues/65655. |
| await tester.pumpWidget(Container()); |
| expect(tester.takeException(), isAssertionError); |
| }); |
| |
| testWidgets('MaterialApp with builder and no route information works.', (WidgetTester tester) async { |
| // Regression test for https://github.com/flutter/flutter/issues/18904 |
| await tester.pumpWidget( |
| MaterialApp( |
| builder: (BuildContext context, Widget? child) { |
| return const SizedBox(); |
| }, |
| ), |
| ); |
| }); |
| |
| testWidgets("WidgetsApp don't rebuild routes when MediaQuery updates", (WidgetTester tester) async { |
| // Regression test for https://github.com/flutter/flutter/issues/37878 |
| int routeBuildCount = 0; |
| int dependentBuildCount = 0; |
| |
| await tester.pumpWidget(WidgetsApp( |
| color: const Color.fromARGB(255, 255, 255, 255), |
| onGenerateRoute: (_) { |
| return PageRouteBuilder<void>(pageBuilder: (_, __, ___) { |
| routeBuildCount++; |
| return Builder( |
| builder: (BuildContext context) { |
| dependentBuildCount++; |
| MediaQuery.of(context); |
| return Container(); |
| }, |
| ); |
| }); |
| }, |
| )); |
| |
| expect(routeBuildCount, equals(1)); |
| expect(dependentBuildCount, equals(1)); |
| |
| // didChangeMetrics |
| tester.binding.window.physicalSizeTestValue = const Size(42, 42); |
| addTearDown(tester.binding.window.clearPhysicalSizeTestValue); |
| |
| await tester.pump(); |
| |
| expect(routeBuildCount, equals(1)); |
| expect(dependentBuildCount, equals(2)); |
| |
| // didChangeTextScaleFactor |
| tester.binding.window.textScaleFactorTestValue = 42; |
| addTearDown(tester.binding.window.clearTextScaleFactorTestValue); |
| |
| await tester.pump(); |
| |
| expect(routeBuildCount, equals(1)); |
| expect(dependentBuildCount, equals(3)); |
| |
| // didChangePlatformBrightness |
| tester.binding.window.platformBrightnessTestValue = Brightness.dark; |
| addTearDown(tester.binding.window.clearPlatformBrightnessTestValue); |
| |
| await tester.pump(); |
| |
| expect(routeBuildCount, equals(1)); |
| expect(dependentBuildCount, equals(4)); |
| |
| // didChangeAccessibilityFeatures |
| tester.binding.window.accessibilityFeaturesTestValue = MockAccessibilityFeature(); |
| addTearDown(tester.binding.window.clearAccessibilityFeaturesTestValue); |
| |
| await tester.pump(); |
| |
| expect(routeBuildCount, equals(1)); |
| expect(dependentBuildCount, equals(5)); |
| }); |
| |
| testWidgets('Can get text scale from media query', (WidgetTester tester) async { |
| double? textScaleFactor; |
| await tester.pumpWidget(MaterialApp( |
| home: Builder(builder:(BuildContext context) { |
| textScaleFactor = MediaQuery.of(context)!.textScaleFactor; |
| return Container(); |
| }), |
| )); |
| expect(textScaleFactor, isNotNull); |
| expect(textScaleFactor, equals(1.0)); |
| }); |
| |
| testWidgets('MaterialApp.navigatorKey', (WidgetTester tester) async { |
| final GlobalKey<NavigatorState> key = GlobalKey<NavigatorState>(); |
| await tester.pumpWidget(MaterialApp( |
| navigatorKey: key, |
| color: const Color(0xFF112233), |
| home: const Placeholder(), |
| )); |
| expect(key.currentState, isA<NavigatorState>()); |
| await tester.pumpWidget(const MaterialApp( |
| color: Color(0xFF112233), |
| home: Placeholder(), |
| )); |
| expect(key.currentState, isNull); |
| await tester.pumpWidget(MaterialApp( |
| navigatorKey: key, |
| color: const Color(0xFF112233), |
| home: const Placeholder(), |
| )); |
| expect(key.currentState, isA<NavigatorState>()); |
| }); |
| |
| testWidgets('Has default material and cupertino localizations', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Builder( |
| builder: (BuildContext context) { |
| return Column( |
| children: <Widget>[ |
| Text(MaterialLocalizations.of(context)!.selectAllButtonLabel), |
| Text(CupertinoLocalizations.of(context)!.selectAllButtonLabel), |
| ], |
| ); |
| }, |
| ), |
| ), |
| ); |
| |
| // Default US "select all" text. |
| expect(find.text('Select all'), findsOneWidget); |
| // Default Cupertino US "select all" text. |
| expect(find.text('Select All'), findsOneWidget); |
| }); |
| |
| testWidgets('MaterialApp uses regular theme when themeMode is light', (WidgetTester tester) async { |
| // Mock the Window to explicitly report a light platformBrightness. |
| tester.binding.window.platformBrightnessTestValue = Brightness.light; |
| |
| late ThemeData appliedTheme; |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| brightness: Brightness.light |
| ), |
| darkTheme: ThemeData( |
| brightness: Brightness.dark, |
| ), |
| themeMode: ThemeMode.light, |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| expect(appliedTheme.brightness, Brightness.light); |
| |
| // Mock the Window to explicitly report a dark platformBrightness. |
| tester.binding.window.platformBrightnessTestValue = Brightness.dark; |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| brightness: Brightness.light |
| ), |
| darkTheme: ThemeData( |
| brightness: Brightness.dark, |
| ), |
| themeMode: ThemeMode.light, |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| expect(appliedTheme.brightness, Brightness.light); |
| }); |
| |
| testWidgets('MaterialApp uses darkTheme when themeMode is dark', (WidgetTester tester) async { |
| // Mock the Window to explicitly report a light platformBrightness. |
| tester.binding.window.platformBrightnessTestValue = Brightness.light; |
| |
| late ThemeData appliedTheme; |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| brightness: Brightness.light |
| ), |
| darkTheme: ThemeData( |
| brightness: Brightness.dark, |
| ), |
| themeMode: ThemeMode.dark, |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| expect(appliedTheme.brightness, Brightness.dark); |
| |
| // Mock the Window to explicitly report a dark platformBrightness. |
| tester.binding.window.platformBrightnessTestValue = Brightness.dark; |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| brightness: Brightness.light |
| ), |
| darkTheme: ThemeData( |
| brightness: Brightness.dark, |
| ), |
| themeMode: ThemeMode.dark, |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| expect(appliedTheme.brightness, Brightness.dark); |
| }); |
| |
| testWidgets('MaterialApp uses regular theme when themeMode is system and platformBrightness is light', (WidgetTester tester) async { |
| // Mock the Window to explicitly report a light platformBrightness. |
| final TestWidgetsFlutterBinding binding = tester.binding; |
| binding.window.platformBrightnessTestValue = Brightness.light; |
| |
| late ThemeData appliedTheme; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| brightness: Brightness.light |
| ), |
| darkTheme: ThemeData( |
| brightness: Brightness.dark, |
| ), |
| themeMode: ThemeMode.system, |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| |
| expect(appliedTheme.brightness, Brightness.light); |
| }); |
| |
| testWidgets('MaterialApp uses darkTheme when themeMode is system and platformBrightness is dark', (WidgetTester tester) async { |
| // Mock the Window to explicitly report a dark platformBrightness. |
| tester.binding.window.platformBrightnessTestValue = Brightness.dark; |
| |
| late ThemeData appliedTheme; |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| brightness: Brightness.light |
| ), |
| darkTheme: ThemeData( |
| brightness: Brightness.dark, |
| ), |
| themeMode: ThemeMode.system, |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| expect(appliedTheme.brightness, Brightness.dark); |
| }); |
| |
| testWidgets('MaterialApp uses light theme when platformBrightness is dark but no dark theme is provided', (WidgetTester tester) async { |
| // Mock the Window to explicitly report a dark platformBrightness. |
| final TestWidgetsFlutterBinding binding = tester.binding; |
| binding.window.platformBrightnessTestValue = Brightness.dark; |
| |
| late ThemeData appliedTheme; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| brightness: Brightness.light |
| ), |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| |
| expect(appliedTheme.brightness, Brightness.light); |
| }); |
| |
| testWidgets('MaterialApp uses fallback light theme when platformBrightness is dark but no theme is provided at all', (WidgetTester tester) async { |
| // Mock the Window to explicitly report a dark platformBrightness. |
| final TestWidgetsFlutterBinding binding = tester.binding; |
| binding.window.platformBrightnessTestValue = Brightness.dark; |
| |
| late ThemeData appliedTheme; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| |
| expect(appliedTheme.brightness, Brightness.light); |
| }); |
| |
| testWidgets('MaterialApp uses fallback light theme when platformBrightness is light and a dark theme is provided', (WidgetTester tester) async { |
| // Mock the Window to explicitly report a dark platformBrightness. |
| final TestWidgetsFlutterBinding binding = tester.binding; |
| binding.window.platformBrightnessTestValue = Brightness.light; |
| |
| late ThemeData appliedTheme; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| darkTheme: ThemeData( |
| brightness: Brightness.dark, |
| ), |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| |
| expect(appliedTheme.brightness, Brightness.light); |
| }); |
| |
| testWidgets('MaterialApp uses dark theme when platformBrightness is dark', (WidgetTester tester) async { |
| // Mock the Window to explicitly report a dark platformBrightness. |
| final TestWidgetsFlutterBinding binding = tester.binding; |
| binding.window.platformBrightnessTestValue = Brightness.dark; |
| |
| late ThemeData appliedTheme; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| brightness: Brightness.light |
| ), |
| darkTheme: ThemeData( |
| brightness: Brightness.dark, |
| ), |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| |
| expect(appliedTheme.brightness, Brightness.dark); |
| }); |
| |
| testWidgets('MaterialApp uses high contrast theme when appropriate', (WidgetTester tester) async { |
| tester.binding.window.platformBrightnessTestValue = Brightness.light; |
| tester.binding.window.accessibilityFeaturesTestValue = MockAccessibilityFeature(); |
| |
| late ThemeData appliedTheme; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| primaryColor: Colors.lightBlue, |
| ), |
| highContrastTheme: ThemeData( |
| primaryColor: Colors.blue, |
| ), |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| |
| expect(appliedTheme.primaryColor, Colors.blue); |
| tester.binding.window.clearAccessibilityFeaturesTestValue(); |
| }); |
| |
| testWidgets('MaterialApp uses high contrast dark theme when appropriate', (WidgetTester tester) async { |
| tester.binding.window.platformBrightnessTestValue = Brightness.dark; |
| tester.binding.window.accessibilityFeaturesTestValue = MockAccessibilityFeature(); |
| |
| late ThemeData appliedTheme; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| primaryColor: Colors.lightBlue, |
| ), |
| darkTheme: ThemeData( |
| primaryColor: Colors.lightGreen, |
| ), |
| highContrastTheme: ThemeData( |
| primaryColor: Colors.blue, |
| ), |
| highContrastDarkTheme: ThemeData( |
| primaryColor: Colors.green, |
| ), |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| |
| expect(appliedTheme.primaryColor, Colors.green); |
| tester.binding.window.clearAccessibilityFeaturesTestValue(); |
| }); |
| |
| testWidgets('MaterialApp uses dark theme when no high contrast dark theme is provided', (WidgetTester tester) async { |
| tester.binding.window.platformBrightnessTestValue = Brightness.dark; |
| tester.binding.window.accessibilityFeaturesTestValue = MockAccessibilityFeature(); |
| |
| late ThemeData appliedTheme; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| primaryColor: Colors.lightBlue, |
| ), |
| darkTheme: ThemeData( |
| primaryColor: Colors.lightGreen, |
| ), |
| home: Builder( |
| builder: (BuildContext context) { |
| appliedTheme = Theme.of(context)!; |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| |
| expect(appliedTheme.primaryColor, Colors.lightGreen); |
| tester.binding.window.clearAccessibilityFeaturesTestValue(); |
| tester.binding.window.clearPlatformBrightnessTestValue(); |
| }); |
| |
| testWidgets('MaterialApp switches themes when the Window platformBrightness changes.', (WidgetTester tester) async { |
| // Mock the Window to explicitly report a light platformBrightness. |
| final TestWidgetsFlutterBinding binding = tester.binding; |
| binding.window.platformBrightnessTestValue = Brightness.light; |
| |
| ThemeData? themeBeforeBrightnessChange; |
| ThemeData? themeAfterBrightnessChange; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| brightness: Brightness.light |
| ), |
| darkTheme: ThemeData( |
| brightness: Brightness.dark, |
| ), |
| home: Builder( |
| builder: (BuildContext context) { |
| if (themeBeforeBrightnessChange == null) { |
| themeBeforeBrightnessChange = Theme.of(context); |
| } else { |
| themeAfterBrightnessChange = Theme.of(context); |
| } |
| return const SizedBox(); |
| }, |
| ), |
| ), |
| ); |
| |
| // Switch the platformBrightness from light to dark and pump the widget tree |
| // to process changes. |
| binding.window.platformBrightnessTestValue = Brightness.dark; |
| await tester.pumpAndSettle(); |
| |
| expect(themeBeforeBrightnessChange!.brightness, Brightness.light); |
| expect(themeAfterBrightnessChange!.brightness, Brightness.dark); |
| }); |
| |
| testWidgets('MaterialApp can customize initial routes', (WidgetTester tester) async { |
| final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>(); |
| await tester.pumpWidget( |
| MaterialApp( |
| 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', |
| routes: <String, WidgetBuilder>{ |
| '/': (BuildContext context) => const Text('regular page one'), |
| '/abc': (BuildContext context) => const Text('regular page two'), |
| }, |
| ) |
| ); |
| expect(find.text('non-regular page two'), findsOneWidget); |
| expect(find.text('non-regular page one'), findsNothing); |
| expect(find.text('regular page one'), findsNothing); |
| expect(find.text('regular page two'), 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 one'), findsNothing); |
| expect(find.text('regular page two'), findsNothing); |
| }); |
| |
| testWidgets('MaterialApp does create HeroController with the MaterialRectArcTween', (WidgetTester tester) async { |
| final HeroController controller = MaterialApp.createMaterialHeroController(); |
| final Tween<Rect?> tween = controller.createRectTween!( |
| const Rect.fromLTRB(0.0, 0.0, 10.0, 10.0), |
| const Rect.fromLTRB(0.0, 0.0, 20.0, 20.0) |
| ); |
| expect(tween, isA<MaterialRectArcTween>()); |
| }); |
| |
| testWidgets('MaterialApp.navigatorKey can be updated', (WidgetTester tester) async { |
| final GlobalKey<NavigatorState> key1 = GlobalKey<NavigatorState>(); |
| await tester.pumpWidget(MaterialApp( |
| navigatorKey: key1, |
| home: const Placeholder(), |
| )); |
| expect(key1.currentState, isA<NavigatorState>()); |
| final GlobalKey<NavigatorState> key2 = GlobalKey<NavigatorState>(); |
| await tester.pumpWidget(MaterialApp( |
| navigatorKey: key2, |
| home: const Placeholder(), |
| )); |
| expect(key2.currentState, isA<NavigatorState>()); |
| expect(key1.currentState, isNull); |
| }); |
| |
| testWidgets('MaterialApp.router works', (WidgetTester tester) async { |
| final PlatformRouteInformationProvider provider = PlatformRouteInformationProvider( |
| initialRouteInformation: const RouteInformation( |
| location: 'initial', |
| ), |
| ); |
| final SimpleNavigatorRouterDelegate delegate = SimpleNavigatorRouterDelegate( |
| builder: (BuildContext context, RouteInformation information) { |
| return Text(information.location!); |
| }, |
| onPopPage: (Route<void> route, void result, SimpleNavigatorRouterDelegate delegate) { |
| delegate.routeInformation = const RouteInformation( |
| location: 'popped', |
| ); |
| return route.didPop(result); |
| } |
| ); |
| await tester.pumpWidget(MaterialApp.router( |
| routeInformationProvider: provider, |
| routeInformationParser: SimpleRouteInformationParser(), |
| routerDelegate: delegate, |
| )); |
| expect(find.text('initial'), findsOneWidget); |
| |
| // Simulate android back button intent. |
| final ByteData message = const JSONMethodCodec().encodeMethodCall(const MethodCall('popRoute')); |
| await ServicesBinding.instance!.defaultBinaryMessenger.handlePlatformMessage('flutter/navigation', message, (_) { }); |
| await tester.pumpAndSettle(); |
| expect(find.text('popped'), findsOneWidget); |
| }); |
| |
| testWidgets('MaterialApp.builder can build app without a Navigator', (WidgetTester tester) async { |
| Widget? builderChild; |
| await tester.pumpWidget(MaterialApp( |
| builder: (BuildContext context, Widget? child) { |
| builderChild = child; |
| return Container(); |
| }, |
| )); |
| expect(builderChild, isNull); |
| }); |
| } |
| |
| class MockAccessibilityFeature implements AccessibilityFeatures { |
| @override |
| bool get accessibleNavigation => true; |
| |
| @override |
| bool get boldText => true; |
| |
| @override |
| bool get disableAnimations => true; |
| |
| @override |
| bool get highContrast => true; |
| |
| @override |
| bool get invertColors => true; |
| |
| @override |
| bool get reduceMotion => true; |
| } |
| |
| typedef SimpleRouterDelegateBuilder = Widget Function(BuildContext, RouteInformation); |
| typedef SimpleNavigatorRouterDelegatePopPage<T> = bool Function(Route<T> route, T result, SimpleNavigatorRouterDelegate delegate); |
| |
| 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(); |
| } |
| |
| SimpleRouterDelegateBuilder builder; |
| 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.location!), |
| child: builder(context, routeInformation), |
| ) |
| ], |
| ); |
| } |
| } |
