| // 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/cupertino.dart'; |
| import 'package:flutter/foundation.dart'; |
| import 'package:flutter/material.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('Default PageTransitionsTheme platform', (WidgetTester tester) async { |
| await tester.pumpWidget(const MaterialApp(home: Text('home'))); |
| final PageTransitionsTheme theme = Theme.of(tester.element(find.text('home'))).pageTransitionsTheme; |
| expect(theme.builders, isNotNull); |
| for (final TargetPlatform platform in TargetPlatform.values) { |
| switch (platform) { |
| case TargetPlatform.android: |
| case TargetPlatform.iOS: |
| case TargetPlatform.macOS: |
| expect( |
| theme.builders[platform], |
| isNotNull, |
| reason: 'theme builder for $platform is null', |
| ); |
| break; |
| case TargetPlatform.fuchsia: |
| case TargetPlatform.linux: |
| case TargetPlatform.windows: |
| expect( |
| theme.builders[platform], |
| isNull, |
| reason: 'theme builder for $platform is not null', |
| ); |
| break; |
| } |
| } |
| }); |
| |
| testWidgets('Default PageTransitionsTheme builds a CupertinoPageTransition', (WidgetTester tester) async { |
| final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{ |
| '/': (BuildContext context) => Material( |
| child: TextButton( |
| child: const Text('push'), |
| onPressed: () { Navigator.of(context).pushNamed('/b'); }, |
| ), |
| ), |
| '/b': (BuildContext context) => const Text('page b'), |
| }; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| routes: routes, |
| ), |
| ); |
| |
| expect(Theme.of(tester.element(find.text('push'))).platform, debugDefaultTargetPlatformOverride); |
| expect(find.byType(CupertinoPageTransition), findsOneWidget); |
| |
| await tester.tap(find.text('push')); |
| await tester.pumpAndSettle(); |
| expect(find.text('page b'), findsOneWidget); |
| expect(find.byType(CupertinoPageTransition), findsOneWidget); |
| }, variant: const TargetPlatformVariant(<TargetPlatform>{ TargetPlatform.iOS, TargetPlatform.macOS })); |
| |
| testWidgets('Default PageTransitionsTheme builds a _ZoomPageTransition for android', (WidgetTester tester) async { |
| final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{ |
| '/': (BuildContext context) => Material( |
| child: TextButton( |
| child: const Text('push'), |
| onPressed: () { Navigator.of(context).pushNamed('/b'); }, |
| ), |
| ), |
| '/b': (BuildContext context) => const Text('page b'), |
| }; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| routes: routes, |
| ), |
| ); |
| |
| Finder findZoomPageTransition() { |
| return find.descendant( |
| of: find.byType(MaterialApp), |
| matching: find.byWidgetPredicate((Widget w) => '${w.runtimeType}' == '_ZoomPageTransition'), |
| ); |
| } |
| |
| expect(Theme.of(tester.element(find.text('push'))).platform, debugDefaultTargetPlatformOverride); |
| expect(findZoomPageTransition(), findsOneWidget); |
| |
| await tester.tap(find.text('push')); |
| await tester.pumpAndSettle(); |
| expect(find.text('page b'), findsOneWidget); |
| expect(findZoomPageTransition(), findsOneWidget); |
| }, variant: TargetPlatformVariant.only(TargetPlatform.android)); |
| |
| testWidgets('PageTransitionsTheme override builds a _OpenUpwardsPageTransition', (WidgetTester tester) async { |
| final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{ |
| '/': (BuildContext context) => Material( |
| child: TextButton( |
| child: const Text('push'), |
| onPressed: () { Navigator.of(context).pushNamed('/b'); }, |
| ), |
| ), |
| '/b': (BuildContext context) => const Text('page b'), |
| }; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| pageTransitionsTheme: const PageTransitionsTheme( |
| builders: <TargetPlatform, PageTransitionsBuilder>{ |
| TargetPlatform.android: OpenUpwardsPageTransitionsBuilder(), // creates a _OpenUpwardsPageTransition |
| }, |
| ), |
| ), |
| routes: routes, |
| ), |
| ); |
| |
| Finder findOpenUpwardsPageTransition() { |
| return find.descendant( |
| of: find.byType(MaterialApp), |
| matching: find.byWidgetPredicate((Widget w) => '${w.runtimeType}' == '_OpenUpwardsPageTransition'), |
| ); |
| } |
| |
| expect(Theme.of(tester.element(find.text('push'))).platform, debugDefaultTargetPlatformOverride); |
| expect(findOpenUpwardsPageTransition(), findsOneWidget); |
| |
| await tester.tap(find.text('push')); |
| await tester.pumpAndSettle(); |
| expect(find.text('page b'), findsOneWidget); |
| expect(findOpenUpwardsPageTransition(), findsOneWidget); |
| }, variant: TargetPlatformVariant.only(TargetPlatform.android)); |
| |
| testWidgets('PageTransitionsTheme override builds a _FadeUpwardsTransition', (WidgetTester tester) async { |
| final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{ |
| '/': (BuildContext context) => Material( |
| child: TextButton( |
| child: const Text('push'), |
| onPressed: () { Navigator.of(context).pushNamed('/b'); }, |
| ), |
| ), |
| '/b': (BuildContext context) => const Text('page b'), |
| }; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| pageTransitionsTheme: const PageTransitionsTheme( |
| builders: <TargetPlatform, PageTransitionsBuilder>{ |
| TargetPlatform.android: FadeUpwardsPageTransitionsBuilder(), // creates a _FadeUpwardsTransition |
| }, |
| ), |
| ), |
| routes: routes, |
| ), |
| ); |
| |
| Finder findFadeUpwardsPageTransition() { |
| return find.descendant( |
| of: find.byType(MaterialApp), |
| matching: find.byWidgetPredicate((Widget w) => '${w.runtimeType}' == '_FadeUpwardsPageTransition'), |
| ); |
| } |
| |
| expect(Theme.of(tester.element(find.text('push'))).platform, debugDefaultTargetPlatformOverride); |
| expect(findFadeUpwardsPageTransition(), findsOneWidget); |
| |
| await tester.tap(find.text('push')); |
| await tester.pumpAndSettle(); |
| expect(find.text('page b'), findsOneWidget); |
| expect(findFadeUpwardsPageTransition(), findsOneWidget); |
| }, variant: TargetPlatformVariant.only(TargetPlatform.android)); |
| |
| testWidgets('_ZoomPageTransition only cause child widget built once', (WidgetTester tester) async { |
| // Regression test for https://github.com/flutter/flutter/issues/58345 |
| |
| int builtCount = 0; |
| |
| final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{ |
| '/': (BuildContext context) => Material( |
| child: TextButton( |
| child: const Text('push'), |
| onPressed: () { Navigator.of(context).pushNamed('/b'); }, |
| ), |
| ), |
| '/b': (BuildContext context) => StatefulBuilder( |
| builder: (BuildContext context, StateSetter setState) { |
| builtCount++; // Increase [builtCount] each time the widget build |
| return TextButton( |
| child: const Text('pop'), |
| onPressed: () { Navigator.pop(context); }, |
| ); |
| }, |
| ), |
| }; |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData( |
| pageTransitionsTheme: const PageTransitionsTheme( |
| builders: <TargetPlatform, PageTransitionsBuilder>{ |
| TargetPlatform.android: ZoomPageTransitionsBuilder(), // creates a _ZoomPageTransition |
| }, |
| ), |
| ), |
| routes: routes, |
| ), |
| ); |
| |
| // No matter push or pop was called, the child widget should built only once. |
| await tester.tap(find.text('push')); |
| await tester.pumpAndSettle(); |
| expect(builtCount, 1); |
| |
| await tester.tap(find.text('pop')); |
| await tester.pumpAndSettle(); |
| expect(builtCount, 1); |
| }, variant: TargetPlatformVariant.only(TargetPlatform.android)); |
| } |