flutter_flutter/packages/flutter/test/widgets/scroll_interaction_test.dart
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---------

Co-authored-by: Kate Lovett <katelovett@google.com>
Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
2024-12-19 20:06:21 +00:00

36 lines
1.2 KiB
Dart

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