| // Copyright 2017 The Chromium 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_test/flutter_test.dart'; |
| |
| import '../rendering/mock_canvas.dart'; |
| |
| void main() { |
| testWidgets('Paints iOS spec', (WidgetTester tester) async { |
| await tester.pumpWidget(const Directionality( |
| textDirection: TextDirection.ltr, |
| child: CupertinoScrollbar( |
| child: SingleChildScrollView( |
| child: SizedBox(width: 4000.0, height: 4000.0), |
| ), |
| ), |
| )); |
| expect(find.byType(CupertinoScrollbar), isNot(paints..rrect())); |
| final TestGesture gesture = await tester.startGesture(tester.getCenter(find.byType(SingleChildScrollView))); |
| await gesture.moveBy(const Offset(0.0, -10.0)); |
| // Move back to original position. |
| await gesture.moveBy(const Offset(0.0, 10.0)); |
| await tester.pump(); |
| await tester.pump(const Duration(milliseconds: 500)); |
| expect(find.byType(CupertinoScrollbar), paints..rrect( |
| color: const Color(0x99777777), |
| rrect: RRect.fromRectAndRadius( |
| Rect.fromLTWH( |
| 800.0 - 2.5 - 2.5, // Screen width - margin - thickness. |
| 4.0, // Initial position is the top margin. |
| 2.5, // Thickness. |
| // Fraction in viewport * scrollbar height - top, bottom margin. |
| 600.0 / 4000.0 * 600.0 - 4.0 - 4.0, |
| ), |
| const Radius.circular(1.25), |
| ), |
| )); |
| }); |
| } |