mirror of
https://github.com/flutter/flutter.git
synced 2025-06-03 00:51:18 +00:00
2f8474f9aa
* Roll engine to b6df7a637498ca9beda1fa9cd7210e3202ea599f. Changes since last roll: ``` b6df7a637 Roll dart to 290c576264faa096a0b3206c71b2435309d9f904. (#4771) a6764dbd5 Add sources for Fuchsia target. (#4763) 2d5900615 [fuchsia] Remove unused header file. (#4769) 9717063b7 Revert "Roll dart to c080951d45e79cd25df98036c4be835b284a269c. (#4767)" (#4768) 9a9814312 Roll dart to c080951d45e79cd25df98036c4be835b284a269c. (#4767) e74e8b35c [async] Update includes of async headers to new path (#4760) e2c4b2760 Use Dart 2 camel case constants in the engine Dart libraries (#4766) 9c1e48434 Updates for Fuchsia roll. (#4765) 14c940e27 Switch from fxl::Mutex to std::mutex (#4764) debf82c0b Roll Garnet (#4759) 5bffdefbb Use weak pointers to the accesibility bridge from objects vended to the UIKit accessibility framework. (#4761) ```
44 lines
1.5 KiB
Dart
44 lines
1.5 KiB
Dart
// 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 'dart:async';
|
|
import 'dart:convert';
|
|
import 'dart:io';
|
|
|
|
import 'package:flutter_driver/flutter_driver.dart';
|
|
import 'package:path/path.dart' as p;
|
|
import 'package:test/test.dart';
|
|
|
|
void main() {
|
|
group('semantics performance test', () {
|
|
FlutterDriver driver;
|
|
|
|
setUpAll(() async {
|
|
driver = await FlutterDriver.connect(printCommunication: true);
|
|
});
|
|
|
|
tearDownAll(() async {
|
|
if (driver != null)
|
|
driver.close();
|
|
});
|
|
|
|
test('inital tree creation', () async {
|
|
// Let app become fully idle.
|
|
await new Future<Null>.delayed(const Duration(seconds: 1));
|
|
|
|
final Timeline timeline = await driver.traceAction(() async {
|
|
expect(await driver.setSemantics(true), isTrue);
|
|
});
|
|
|
|
final Iterable<TimelineEvent> semanticsEvents = timeline.events.where((TimelineEvent event) => event.name == 'Semantics');
|
|
if (semanticsEvents.length != 1)
|
|
fail('Expected exactly one semantics event, got ${semanticsEvents.length}');
|
|
final Duration semanticsTreeCreation = semanticsEvents.first.duration;
|
|
|
|
final String jsonEncoded = json.encode(<String, dynamic>{'initialSemanticsTreeCreation': semanticsTreeCreation.inMilliseconds});
|
|
new File(p.join(testOutputsDirectory, 'complex_layout_semantics_perf.json')).writeAsStringSync(jsonEncoded);
|
|
});
|
|
});
|
|
}
|