75a7cdfb81
This is a part of my effort to cleanup our system-wide metric measurement code. TBR=wfh@chromium.org,bartfab@chromium.org,jochen@chromium.org,rsesek@chromium.org,kinuko@chromium.org Bug: 891864 Change-Id: I896b8936d91789ba0e0423f0937cd54c973bfcda Reviewed-on: https://chromium-review.googlesource.com/c/1327441 Commit-Queue: Sébastien Marchand <sebmarchand@chromium.org> Reviewed-by: Sébastien Marchand <sebmarchand@chromium.org> Reviewed-by: François Doray <fdoray@chromium.org> Cr-Commit-Position: refs/heads/master@{#607813}
56 lines
2.2 KiB
C++
56 lines
2.2 KiB
C++
// Copyright 2017 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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#include "content/browser/browser_main_loop.h"
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#include "base/command_line.h"
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#include "base/message_loop/message_loop.h"
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#include "base/system/sys_info.h"
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#include "base/task/task_scheduler/task_scheduler.h"
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#include "base/test/scoped_command_line.h"
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#include "content/browser/browser_thread_impl.h"
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#include "content/browser/scheduler/browser_task_executor.h"
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#include "content/browser/startup_helper.h"
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#include "content/public/browser/browser_thread.h"
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#include "content/public/common/content_switches.h"
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#include "content/public/common/main_function_params.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace content {
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// Verify that a single-process browser process has at least as many threads as
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// the number of cores in its foreground pool.
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TEST(BrowserMainLoopTest, CreateThreadsInSingleProcess) {
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{
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base::test::ScopedCommandLine scoped_command_line;
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scoped_command_line.GetProcessCommandLine()->AppendSwitch(
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switches::kSingleProcess);
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base::TaskScheduler::Create("Browser");
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StartBrowserTaskScheduler();
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BrowserTaskExecutor::Create();
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MainFunctionParams main_function_params(
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*scoped_command_line.GetProcessCommandLine());
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BrowserMainLoop browser_main_loop(
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main_function_params,
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std::make_unique<base::TaskScheduler::ScopedExecutionFence>());
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browser_main_loop.MainMessageLoopStart();
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browser_main_loop.Init();
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browser_main_loop.CreateThreads();
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EXPECT_GE(base::TaskScheduler::GetInstance()
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->GetMaxConcurrentNonBlockedTasksWithTraitsDeprecated(
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{base::TaskPriority::USER_VISIBLE}),
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base::SysInfo::NumberOfProcessors() - 1);
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browser_main_loop.ShutdownThreadsAndCleanUp();
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}
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BrowserTaskExecutor::ResetForTesting();
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for (int id = BrowserThread::UI; id < BrowserThread::ID_COUNT; ++id) {
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BrowserThreadImpl::ResetGlobalsForTesting(
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static_cast<BrowserThread::ID>(id));
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}
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base::TaskScheduler::GetInstance()->JoinForTesting();
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base::TaskScheduler::SetInstance(nullptr);
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}
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} // namespace content
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