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36 lines
1.3 KiB
Dart
36 lines
1.3 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/material.dart';
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import 'package:flutter_api_samples/material/slider/slider.1.dart' as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Slider shows secondary track', (WidgetTester tester) async {
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await tester.pumpWidget(
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const example.MyApp(),
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);
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expect(find.byType(Slider), findsNWidgets(2));
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final Finder slider1Finder = find.byType(Slider).at(0);
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final Finder slider2Finder = find.byType(Slider).at(1);
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Slider slider1 = tester.widget(slider1Finder);
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Slider slider2 = tester.widget(slider2Finder);
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expect(slider1.secondaryTrackValue, slider2.value);
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const double targetValue = 0.8;
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final Rect rect = tester.getRect(slider2Finder);
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final Offset target = Offset(rect.left + (rect.right - rect.left) * targetValue, rect.top + (rect.bottom - rect.top) / 2);
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await tester.tapAt(target);
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await tester.pump();
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slider1 = tester.widget(slider1Finder);
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slider2 = tester.widget(slider2Finder);
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expect(slider1.secondaryTrackValue, closeTo(targetValue, 0.05));
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expect(slider1.secondaryTrackValue, slider2.value);
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});
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}
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