// 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/scrollbar/cupertino_scrollbar.0.dart' as example; import 'package:flutter_test/flutter_test.dart'; void main() { testWidgets('List view displays CupertinoScrollbar', (WidgetTester tester) async { await tester.pumpWidget( const example.ScrollbarApp(), ); expect(find.text('Item 0'), findsOneWidget); final TestGesture gesture = await tester.startGesture(tester.getCenter(find.byType(ListView))); await gesture.moveBy(const Offset(0.0, -100.0)); await tester.pumpAndSettle(); expect(find.text('Item 0'), findsNothing); final Finder scrollbar = find.byType(CupertinoScrollbar); expect(scrollbar, findsOneWidget); expect(tester.getTopLeft(scrollbar).dy, 0.0); expect(tester.getBottomLeft(scrollbar).dy, 600.0); }); }