| // 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/foundation.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| import 'package:macrobenchmarks/common.dart'; |
| |
| import 'util.dart'; |
| |
| void main() { |
| macroPerfTestE2E( |
| 'very_long_picture_scrolling_perf', |
| kVeryLongPictureScrollingRouteName, |
| pageDelay: const Duration(seconds: 1), |
| duration: const Duration(seconds: 30), |
| body: (WidgetController controller) async { |
| final Finder nestedScroll = find.byKey(const ValueKey<String>('vlp_single_child_scrollable')); |
| expect(nestedScroll, findsOneWidget); |
| Future<void> scrollOnce(double offset) async { |
| await controller.timedDrag( |
| nestedScroll, |
| Offset(offset, 0.0), |
| const Duration(milliseconds: 3500), |
| ); |
| await Future<void>.delayed(const Duration(milliseconds: 500)); |
| } |
| for (int i = 0; i < 2; i += 1) { |
| await scrollOnce(-3000.0); |
| await scrollOnce(-3000.0); |
| await scrollOnce(3000.0); |
| await scrollOnce(3000.0); |
| } |
| }, |
| ); |
| } |