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449f4a6673
* Update project.pbxproj files to say Flutter rather than Chromium Also, the templates now have an empty organization so that we don't cause people to give their apps a Flutter copyright. * Update the copyright notice checker to require a standard notice on all files * Update copyrights on Dart files. (This was a mechanical commit.) * Fix weird license headers on Dart files that deviate from our conventions; relicense Shrine. Some were already marked "The Flutter Authors", not clear why. Their dates have been normalized. Some were missing the blank line after the license. Some were randomly different in trivial ways for no apparent reason (e.g. missing the trailing period). * Clean up the copyrights in non-Dart files. (Manual edits.) Also, make sure templates don't have copyrights. * Fix some more ORGANIZATIONNAMEs
62 lines
2.3 KiB
Dart
62 lines
2.3 KiB
Dart
// Copyright 2014 The Flutter 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_test/flutter_test.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:stocks/main.dart' as stocks;
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import 'package:stocks/stock_data.dart' as stock_data;
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import '../common.dart';
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const Duration kBenchmarkTime = Duration(seconds: 15);
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Future<void> main() async {
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assert(false, "Don't run benchmarks in checked mode! Use 'flutter run --release'.");
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stock_data.StockData.actuallyFetchData = false;
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// We control the framePolicy below to prevent us from scheduling frames in
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// the engine, so that the engine does not interfere with our timings.
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final LiveTestWidgetsFlutterBinding binding = TestWidgetsFlutterBinding.ensureInitialized();
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final Stopwatch watch = Stopwatch();
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int iterations = 0;
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await benchmarkWidgets((WidgetTester tester) async {
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stocks.main();
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await tester.pump(); // Start startup animation
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await tester.pump(const Duration(seconds: 1)); // Complete startup animation
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await tester.tapAt(const Offset(20.0, 40.0)); // Open drawer
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await tester.pump(); // Start drawer animation
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await tester.pump(const Duration(seconds: 1)); // Complete drawer animation
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final Element appState = tester.element(find.byType(stocks.StocksApp));
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binding.framePolicy = LiveTestWidgetsFlutterBindingFramePolicy.benchmark;
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watch.start();
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while (watch.elapsed < kBenchmarkTime) {
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appState.markNeedsBuild();
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// We don't use tester.pump() because we're trying to drive it in an
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// artificially high load to find out how much CPU each frame takes.
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// This differs from normal benchmarks which might look at how many
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// frames are missed, etc.
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// We use Timer.run to ensure there's a microtask flush in between
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// the two calls below.
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await tester.pumpBenchmark(Duration(milliseconds: iterations * 16));
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iterations += 1;
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}
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watch.stop();
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});
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final BenchmarkResultPrinter printer = BenchmarkResultPrinter();
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printer.addResult(
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description: 'Stock build',
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value: watch.elapsedMicroseconds / iterations,
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unit: 'µs per iteration',
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name: 'stock_build_iteration',
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);
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printer.printToStdout();
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}
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