| // 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. |
| |
| // @dart = 2.9 |
| |
| import 'package:flutter_driver/flutter_driver.dart'; |
| import 'package:test/test.dart' hide TypeMatcher, isInstanceOf; |
| |
| void main() { |
| group('scrolling performance test', () { |
| FlutterDriver driver; |
| |
| setUpAll(() async { |
| driver = await FlutterDriver.connect(); |
| }); |
| |
| tearDownAll(() async { |
| if (driver != null) |
| driver.close(); |
| }); |
| |
| test('measure', () async { |
| await driver.tap(find.text('Material')); |
| |
| final SerializableFinder demoList = find.byValueKey('GalleryDemoList'); |
| |
| // TODO(eseidel): These are very artificial scrolls, we should use better |
| // https://github.com/flutter/flutter/issues/3316 |
| // Scroll down |
| for (int i = 0; i < 5; i++) { |
| await driver.scroll(demoList, 0.0, -300.0, const Duration(milliseconds: 300)); |
| await Future<void>.delayed(const Duration(milliseconds: 500)); |
| } |
| |
| // Scroll up |
| for (int i = 0; i < 5; i++) { |
| await driver.scroll(demoList, 0.0, 300.0, const Duration(milliseconds: 300)); |
| await Future<void>.delayed(const Duration(milliseconds: 500)); |
| } |
| }); |
| }); |
| } |