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a32fc986f3
This will catch issues like https://github.com/flutter/flutter/issues/44252, and this test is inspired by the `list_demo` sample app in https://github.com/flutter/flutter/issues/43083#issue-509586473 This is tested locally on a Moto G4 before and after the fix https://github.com/flutter/engine/pull/13710 The `average_frame_rasterizer_time_millis` of this test drops from ~5.4ms to ~4.9ms after that fix.
52 lines
1.6 KiB
Dart
52 lines
1.6 KiB
Dart
// Copyright 2019 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'dart:async';
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import 'package:flutter_driver/flutter_driver.dart';
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import 'package:test/test.dart' hide TypeMatcher, isInstanceOf;
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void macroPerfTest(
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String testName,
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String routeName,
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{ Duration pageDelay,
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Duration duration = const Duration(seconds: 3),
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Future<void> driverOps(FlutterDriver driver),
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}) {
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test(testName, () async {
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final FlutterDriver driver = await FlutterDriver.connect();
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// The slight initial delay avoids starting the timing during a
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// period of increased load on the device. Without this delay, the
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// benchmark has greater noise.
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// See: https://github.com/flutter/flutter/issues/19434
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await Future<void>.delayed(const Duration(milliseconds: 250));
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await driver.forceGC();
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final SerializableFinder button = find.byValueKey(routeName);
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expect(button, isNotNull);
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await driver.tap(button);
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if (pageDelay != null) {
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// Wait for the page to load
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await Future<void>.delayed(pageDelay);
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}
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final Timeline timeline = await driver.traceAction(() async {
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final Future<void> durationFuture = Future<void>.delayed(duration);
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if (driverOps != null) {
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await driverOps(driver);
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}
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await durationFuture;
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});
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final TimelineSummary summary = TimelineSummary.summarize(timeline);
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summary.writeSummaryToFile(testName, pretty: true);
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summary.writeTimelineToFile(testName, pretty: true);
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driver.close();
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});
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}
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