// 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(new Directionality( textDirection: TextDirection.ltr, child: new CupertinoScrollbar( child: new SingleChildScrollView( child: const 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: new RRect.fromRectAndRadius( new 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), ), )); }); }