| // 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/widgets/transitions/slide_transition.0.dart' as example; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('Shows flutter logo in transition', (WidgetTester tester) async { |
| await tester.pumpWidget(const example.SlideTransitionExampleApp()); |
| expect(find.text('SlideTransition Sample'), findsOneWidget); |
| expect(find.byType(Center), findsOneWidget); |
| expect(find.byType(FlutterLogo), findsOneWidget); |
| expect(find.byType(Padding), findsAtLeast(1)); |
| expect(find.byType(SlideTransition), findsOneWidget); |
| }); |
| |
| testWidgets('Animates repeatedly every 2 seconds', (WidgetTester tester) async { |
| await tester.pumpWidget(const example.SlideTransitionExampleApp()); |
| |
| expect( |
| tester.getCenter(find.byType(FlutterLogo)), |
| tester.getCenter(find.byType(Center)), |
| ); |
| |
| await tester.pump(const Duration(seconds: 2)); |
| await tester.pump(); |
| |
| final double width = tester.getSize(find.byType(FlutterLogo)).width + 2 * 8.0; |
| expect( |
| tester.getCenter(find.byType(FlutterLogo)).dx, |
| tester.getCenter(find.byType(Center)).dx + 1.5 * width, |
| ); |
| |
| await tester.pump(const Duration(seconds: 2)); |
| await tester.pump(); |
| |
| expect( |
| tester.getCenter(find.byType(FlutterLogo)), |
| tester.getCenter(find.byType(Center)), |
| ); |
| }); |
| } |