blob: e4bc85ce52357f21eacaecf15ac4b4003a03a077 [file] [log] [blame]
// 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 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:stocks/main.dart' as stocks;
import 'package:stocks/stock_data.dart' as stock_data;
import '../common.dart';
const Duration kBenchmarkTime = Duration(seconds: 15);
Future<void> main() async {
assert(false, "Don't run benchmarks in debug mode! Use 'flutter run --release'.");
stock_data.StockData.actuallyFetchData = false;
// We control the framePolicy below to prevent us from scheduling frames in
// the engine, so that the engine does not interfere with our timings.
final LiveTestWidgetsFlutterBinding binding = TestWidgetsFlutterBinding.ensureInitialized() as LiveTestWidgetsFlutterBinding;
final Stopwatch watch = Stopwatch();
int iterations = 0;
await benchmarkWidgets((WidgetTester tester) async {
await tester.pump(); // Start startup animation
await tester.pump(const Duration(seconds: 1)); // Complete startup animation
await tester.tapAt(const Offset(20.0, 40.0)); // Open drawer
await tester.pump(); // Start drawer animation
await tester.pump(const Duration(seconds: 1)); // Complete drawer animation
final TestViewConfiguration big = TestViewConfiguration(
size: const Size(360.0, 640.0),
window: RendererBinding.instance.window,
final TestViewConfiguration small = TestViewConfiguration(
size: const Size(355.0, 635.0),
window: RendererBinding.instance.window,
final RenderView renderView = WidgetsBinding.instance.renderView;
binding.framePolicy = LiveTestWidgetsFlutterBindingFramePolicy.benchmark;
while (watch.elapsed < kBenchmarkTime) {
renderView.configuration = iterations.isEven ? big : small;
await tester.pumpBenchmark(Duration(milliseconds: iterations * 16));
iterations += 1;
final BenchmarkResultPrinter printer = BenchmarkResultPrinter();
description: 'Stock layout',
value: watch.elapsedMicroseconds / iterations,
unit: '┬Ás per iteration',
name: 'stock_layout_iteration',