| // 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_api_samples/material/page_transitions_theme/page_transitions_theme.1.dart' as example; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('MaterialApp defines a custom PageTransitionsTheme', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| const example.PageTransitionsThemeApp(), |
| ); |
| |
| final Finder homePage = find.byType(example.HomePage); |
| expect(homePage, findsOneWidget); |
| |
| final PageTransitionsTheme theme = Theme.of(tester.element(homePage)).pageTransitionsTheme; |
| expect(theme.builders, isNotNull); |
| |
| // Check defined page transitions builder for each platform. |
| for (final TargetPlatform platform in TargetPlatform.values) { |
| switch (platform) { |
| case TargetPlatform.android: |
| expect(theme.builders[platform], isA<ZoomPageTransitionsBuilder>()); |
| final ZoomPageTransitionsBuilder builder = theme.builders[platform]! as ZoomPageTransitionsBuilder; |
| expect(builder.allowSnapshotting, isFalse); |
| case TargetPlatform.iOS: |
| case TargetPlatform.macOS: |
| case TargetPlatform.linux: |
| case TargetPlatform.fuchsia: |
| case TargetPlatform.windows: |
| expect(theme.builders[platform], isNull); |
| } |
| } |
| |
| // Can navigate to the second page. |
| expect(find.text('To SecondPage'), findsOneWidget); |
| await tester.tap(find.text('To SecondPage')); |
| await tester.pumpAndSettle(); |
| |
| // Can navigate back to the home page. |
| expect(find.text('Back to HomePage'), findsOneWidget); |
| await tester.tap(find.text('Back to HomePage')); |
| await tester.pumpAndSettle(); |
| expect(find.text('To SecondPage'), findsOneWidget); |
| }); |
| } |