| // 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 'dart:math' as math; |
| |
| import 'package:flutter/material.dart'; |
| import 'package:flutter_api_samples/widgets/transitions/animated_builder.0.dart' as example; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('Rotates text and container', (WidgetTester tester) async { |
| await tester.pumpWidget(const example.AnimatedBuilderExampleApp()); |
| expect(find.text('Whee!'), findsOneWidget); |
| expect(find.byType(Container), findsOneWidget); |
| expect(tester.widget(find.byType(Container)), isA<Container>() |
| .having((Container container) => container.color, 'color', Colors.green)); |
| |
| expect(find.byWidgetPredicate((Widget widget) => widget is Transform |
| && widget.transform == Transform.rotate(angle: 0.0).transform), |
| findsOneWidget); |
| |
| await tester.pump(const Duration(seconds: 5)); |
| await tester.pump(); |
| |
| expect(find.byWidgetPredicate((Widget widget) => widget is Transform |
| && widget.transform == Transform.rotate(angle: math.pi).transform), |
| findsOneWidget); |
| }); |
| } |