35 lines
1.2 KiB
Dart
35 lines
1.2 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/widgets.dart';
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Scroll flings twice in a row does not crash', (WidgetTester tester) async {
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await tester.pumpWidget(
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Directionality(
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textDirection: TextDirection.ltr,
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child: ListView(children: <Widget>[Container(height: 100000.0)]),
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),
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);
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final ScrollableState scrollable = tester.state<ScrollableState>(find.byType(Scrollable));
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expect(scrollable.position.pixels, equals(0.0));
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await tester.flingFrom(const Offset(200.0, 300.0), const Offset(0.0, -200.0), 500.0);
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await tester.pump();
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await tester.pump(const Duration(seconds: 5));
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expect(scrollable.position.pixels, greaterThan(0.0));
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final double oldOffset = scrollable.position.pixels;
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await tester.flingFrom(const Offset(200.0, 300.0), const Offset(0.0, -200.0), 500.0);
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await tester.pump();
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await tester.pump(const Duration(seconds: 5));
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expect(scrollable.position.pixels, greaterThan(oldOffset));
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});
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}
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