// 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:convert'; import 'dart:io'; import 'dart:math' as math; import '../framework/adb.dart'; import '../framework/framework.dart'; import '../framework/host_agent.dart'; import '../framework/task_result.dart'; import '../framework/utils.dart'; TaskFunction createGalleryTransitionTest({bool semanticsEnabled = false}) { return GalleryTransitionTest(semanticsEnabled: semanticsEnabled); } TaskFunction createGalleryTransitionE2ETest({bool semanticsEnabled = false}) { return GalleryTransitionTest( testFile: semanticsEnabled ? 'transitions_perf_e2e_with_semantics' : 'transitions_perf_e2e', needFullTimeline: false, timelineSummaryFile: 'e2e_perf_summary', transitionDurationFile: null, timelineTraceFile: null, driverFile: 'transitions_perf_e2e_test', ); } TaskFunction createGalleryTransitionHybridTest({bool semanticsEnabled = false}) { return GalleryTransitionTest( semanticsEnabled: semanticsEnabled, driverFile: semanticsEnabled ? 'transitions_perf_hybrid_with_semantics_test' : 'transitions_perf_hybrid_test', ); } class GalleryTransitionTest { GalleryTransitionTest({ this.semanticsEnabled = false, this.testFile = 'transitions_perf', this.needFullTimeline = true, this.timelineSummaryFile = 'transitions.timeline_summary', this.timelineTraceFile = 'transitions.timeline', this.transitionDurationFile = 'transition_durations.timeline', this.driverFile, }); final bool semanticsEnabled; final bool needFullTimeline; final String testFile; final String timelineSummaryFile; final String timelineTraceFile; final String transitionDurationFile; final String driverFile; Future<TaskResult> call() async { final Device device = await devices.workingDevice; await device.unlock(); final String deviceId = device.deviceId; final Directory galleryDirectory = dir('${flutterDirectory.path}/dev/integration_tests/flutter_gallery'); await inDirectory<void>(galleryDirectory, () async { String applicationBinaryPath; if (deviceOperatingSystem == DeviceOperatingSystem.android) { section('BUILDING APPLICATION'); await flutter( 'build', options: <String>[ 'apk', '--no-android-gradle-daemon', '--profile', '-t', 'test_driver/$testFile.dart', '--target-platform', 'android-arm,android-arm64', ], ); applicationBinaryPath = 'build/app/outputs/flutter-apk/app-profile.apk'; } final String testDriver = driverFile ?? (semanticsEnabled ? '${testFile}_with_semantics_test' : '${testFile}_test'); section('DRIVE START'); await flutter('drive', options: <String>[ '--profile', if (needFullTimeline) '--trace-startup', if (applicationBinaryPath != null) '--use-application-binary=$applicationBinaryPath' else ...<String>[ '-t', 'test_driver/$testFile.dart', ], '--driver', 'test_driver/$testDriver.dart', '-d', deviceId, '--screenshot', hostAgent.dumpDirectory.path, ]); }); final String testOutputDirectory = Platform.environment['FLUTTER_TEST_OUTPUTS_DIR'] ?? '${galleryDirectory.path}/build'; final Map<String, dynamic> summary = json.decode( file('$testOutputDirectory/$timelineSummaryFile.json').readAsStringSync(), ) as Map<String, dynamic>; if (transitionDurationFile != null) { final Map<String, dynamic> original = json.decode( file('$testOutputDirectory/$transitionDurationFile.json').readAsStringSync(), ) as Map<String, dynamic>; final Map<String, List<int>> transitions = <String, List<int>>{}; for (final String key in original.keys) { transitions[key] = List<int>.from(original[key] as List<dynamic>); } summary['transitions'] = transitions; summary['missed_transition_count'] = _countMissedTransitions(transitions); } return TaskResult.success(summary, detailFiles: <String>[ if (transitionDurationFile != null) '$testOutputDirectory/$transitionDurationFile.json', if (timelineTraceFile != null) '$testOutputDirectory/$timelineTraceFile.json' ], benchmarkScoreKeys: <String>[ if (transitionDurationFile != null) 'missed_transition_count', 'average_frame_build_time_millis', 'worst_frame_build_time_millis', '90th_percentile_frame_build_time_millis', '99th_percentile_frame_build_time_millis', 'average_frame_rasterizer_time_millis', 'worst_frame_rasterizer_time_millis', '90th_percentile_frame_rasterizer_time_millis', '99th_percentile_frame_rasterizer_time_millis', ], ); } } int _countMissedTransitions(Map<String, List<int>> transitions) { const int _kTransitionBudget = 100000; // µs int count = 0; transitions.forEach((String demoName, List<int> durations) { final int longestDuration = durations.reduce(math.max); if (longestDuration > _kTransitionBudget) { print('$demoName missed transition time budget ($longestDuration µs > $_kTransitionBudget µs)'); count++; } }); return count; }