| // 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_api_samples/cupertino/slider/cupertino_slider.0.dart' as example; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| Future<void> dragSlider(WidgetTester tester, Key sliderKey) { |
| final Offset topLeft = tester.getTopLeft(find.byKey(sliderKey)); |
| const double unit = CupertinoThumbPainter.radius; |
| const double delta = 3.0 * unit; |
| return tester.dragFrom(topLeft + const Offset(unit, unit), const Offset(delta, 0.0)); |
| } |
| |
| testWidgets('Can change value using CupertinoSlider', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| const example.CupertinoSliderApp(), |
| ); |
| |
| // Check for the initial slider value. |
| expect(find.text('0.0'), findsOneWidget); |
| |
| await dragSlider(tester, const Key('slider')); |
| await tester.pumpAndSettle(); |
| |
| // Check for the updated slider value. |
| expect(find.text('40.0'), findsOneWidget); |
| }); |
| } |