| // 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 'dart:async'; |
| |
| import 'package:flutter_devicelab/framework/framework.dart'; |
| import 'package:flutter_devicelab/framework/utils.dart'; |
| import 'package:flutter_devicelab/tasks/perf_tests.dart'; |
| |
| class HelloWorldMemoryTest extends MemoryTest { |
| HelloWorldMemoryTest() : super( |
| '${flutterDirectory.path}/examples/hello_world', |
| 'lib/main.dart', |
| 'io.flutter.examples.hello_world', |
| ); |
| |
| /// Launch an app with no instrumentation and measure its memory usage after |
| /// 1.5s and 3.0s. |
| @override |
| Future<void> useMemory() async { |
| print('launching $project$test on device...'); |
| await flutter('run', options: <String>[ |
| '--verbose', |
| '--release', |
| '--no-resident', |
| '-d', device.deviceId, |
| test, |
| ]); |
| await Future<void>.delayed(const Duration(milliseconds: 1500)); |
| await recordStart(); |
| await Future<void>.delayed(const Duration(milliseconds: 3000)); |
| await recordEnd(); |
| } |
| } |
| |
| Future<void> main() async { |
| await task(HelloWorldMemoryTest().run); |
| } |