| // 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/material.dart'; |
| import 'package:flutter_gallery/demo/material/drawer_demo.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| void main() { |
| testWidgets('Drawer header does not scroll', (WidgetTester tester) async { |
| await tester.pumpWidget(new MaterialApp( |
| theme: new ThemeData(platform: TargetPlatform.iOS), |
| home: new DrawerDemo(), |
| )); |
| |
| await tester.tap(find.text('Tap here to open the drawer')); |
| await tester.pump(); |
| await tester.pump(const Duration(milliseconds: 500)); |
| |
| expect(tester.getTopLeft(find.byType(UserAccountsDrawerHeader)).dy, 0.0); |
| final double initialTopItemSaneY = tester.getTopLeft(find.text('Drawer item A')).dy; |
| expect(initialTopItemSaneY, greaterThan(0.0)); |
| |
| await tester.drag(find.text('Drawer item B'), const Offset(0.0, 400.0)); |
| await tester.pump(); |
| |
| expect(tester.getTopLeft(find.byType(UserAccountsDrawerHeader)).dy, 0.0); |
| expect(tester.getTopLeft(find.text('Drawer item A')).dy, greaterThan(initialTopItemSaneY)); |
| expect(tester.getTopLeft(find.text('Drawer item A')).dy, lessThanOrEqualTo(initialTopItemSaneY + 400.0)); |
| }); |
| } |