| // 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/rendering.dart'; |
| import 'package:flutter_api_samples/rendering/scroll_direction/scroll_direction.0.dart' as example; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('Example app has ScrollDirection represented', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| const example.ExampleApp(), |
| ); |
| |
| expect(find.byType(Radio<AxisDirection>), findsNWidgets(4)); |
| final RenderViewport viewport = tester.renderObject(find.byType(Viewport)); |
| expect(find.text('AxisDirection.down'), findsOneWidget); |
| expect(find.text('Axis.vertical'), findsOneWidget); |
| expect(find.text('GrowthDirection.forward'), findsOneWidget); |
| expect(find.text('ScrollDirection.idle'), findsOneWidget); |
| expect(find.byIcon(Icons.arrow_downward_rounded), findsNWidgets(2)); |
| expect(viewport.axisDirection, AxisDirection.down); |
| |
| await tester.tap( |
| find.byWidgetPredicate((Widget widget) { |
| return widget is Radio<AxisDirection> && widget.value == AxisDirection.up; |
| }) |
| ); |
| await tester.pumpAndSettle(); |
| |
| expect(find.text('AxisDirection.up'), findsOneWidget); |
| expect(find.text('Axis.vertical'), findsOneWidget); |
| expect(find.text('GrowthDirection.forward'), findsOneWidget); |
| expect(find.text('ScrollDirection.idle'), findsOneWidget); |
| expect(find.byIcon(Icons.arrow_upward_rounded), findsNWidgets(2)); |
| expect(viewport.axisDirection, AxisDirection.up); |
| }); |
| } |