| // Copyright 2015 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. |
| |
| #include "chrome/browser/after_startup_task_utils.h" |
| |
| #include "base/bind.h" |
| #include "base/bind_helpers.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/message_loop/message_loop.h" |
| #include "base/run_loop.h" |
| #include "base/task_runner_util.h" |
| #include "base/thread_task_runner_handle.h" |
| #include "base/threading/thread.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "content/public/test/test_browser_thread_bundle.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| using base::RunLoop; |
| using content::BrowserThread; |
| using content::TestBrowserThreadBundle; |
| |
| namespace { |
| |
| class WrappedTaskRunner : public base::TaskRunner { |
| public: |
| explicit WrappedTaskRunner(const scoped_refptr<TaskRunner>& real_runner) |
| : real_task_runner_(real_runner) {} |
| |
| bool PostDelayedTask(const tracked_objects::Location& from_here, |
| const base::Closure& task, |
| base::TimeDelta delay) override { |
| ++posted_task_count_; |
| return real_task_runner_->PostDelayedTask( |
| from_here, base::Bind(&WrappedTaskRunner::RunWrappedTask, this, task), |
| base::TimeDelta()); // Squash all delays so our tests complete asap. |
| } |
| |
| bool RunsTasksOnCurrentThread() const override { |
| return real_task_runner_->RunsTasksOnCurrentThread(); |
| } |
| |
| base::TaskRunner* real_runner() const { return real_task_runner_.get(); } |
| |
| int total_task_count() const { return posted_task_count_ + ran_task_count_; } |
| int posted_task_count() const { return posted_task_count_; } |
| int ran_task_count() const { return ran_task_count_; } |
| |
| void reset_task_counts() { |
| posted_task_count_ = 0; |
| ran_task_count_ = 0; |
| } |
| |
| private: |
| ~WrappedTaskRunner() override {} |
| |
| void RunWrappedTask(const base::Closure& task) { |
| ++ran_task_count_; |
| task.Run(); |
| } |
| |
| scoped_refptr<TaskRunner> real_task_runner_; |
| int posted_task_count_ = 0; |
| int ran_task_count_ = 0; |
| }; |
| |
| } // namespace |
| |
| class AfterStartupTaskTest : public testing::Test { |
| public: |
| AfterStartupTaskTest() |
| : browser_thread_bundle_(TestBrowserThreadBundle::REAL_DB_THREAD) { |
| ui_thread_ = new WrappedTaskRunner( |
| BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI)); |
| db_thread_ = new WrappedTaskRunner( |
| BrowserThread::GetMessageLoopProxyForThread(BrowserThread::DB)); |
| AfterStartupTaskUtils::UnsafeResetForTesting(); |
| } |
| |
| // Hop to the db thread and call IsBrowserStartupComplete. |
| bool GetIsBrowserStartupCompleteFromDBThread() { |
| RunLoop run_loop; |
| bool is_complete; |
| base::PostTaskAndReplyWithResult( |
| db_thread_->real_runner(), FROM_HERE, |
| base::Bind(&AfterStartupTaskUtils::IsBrowserStartupComplete), |
| base::Bind(&AfterStartupTaskTest::GotIsOnBrowserStartupComplete, |
| &run_loop, &is_complete)); |
| run_loop.Run(); |
| return is_complete; |
| } |
| |
| // Hop to the db thread and call PostAfterStartupTask. |
| void PostAfterStartupTaskFromDBThread( |
| const tracked_objects::Location& from_here, |
| const scoped_refptr<base::TaskRunner>& task_runner, |
| const base::Closure& task) { |
| RunLoop run_loop; |
| db_thread_->real_runner()->PostTaskAndReply( |
| FROM_HERE, base::Bind(&AfterStartupTaskUtils::PostTask, from_here, |
| task_runner, task), |
| base::Bind(&RunLoop::Quit, base::Unretained(&run_loop))); |
| run_loop.Run(); |
| } |
| |
| // Make sure all tasks posted to the DB thread get run. |
| void FlushDBThread() { |
| RunLoop run_loop; |
| db_thread_->real_runner()->PostTaskAndReply( |
| FROM_HERE, base::Bind(&base::DoNothing), |
| base::Bind(&RunLoop::Quit, base::Unretained(&run_loop))); |
| run_loop.Run(); |
| } |
| |
| static void VerifyExpectedThread(BrowserThread::ID id) { |
| EXPECT_TRUE(BrowserThread::CurrentlyOn(id)); |
| } |
| |
| protected: |
| scoped_refptr<WrappedTaskRunner> ui_thread_; |
| scoped_refptr<WrappedTaskRunner> db_thread_; |
| |
| private: |
| static void GotIsOnBrowserStartupComplete(RunLoop* loop, |
| bool* out, |
| bool is_complete) { |
| *out = is_complete; |
| loop->Quit(); |
| } |
| |
| TestBrowserThreadBundle browser_thread_bundle_; |
| }; |
| |
| TEST_F(AfterStartupTaskTest, IsStartupComplete) { |
| // Check IsBrowserStartupComplete on a background thread first to |
| // verify that it does not allocate the underlying flag on that thread. |
| // That allocation thread correctness part of this test relies on |
| // the DCHECK in CancellationFlag::Set(). |
| EXPECT_FALSE(GetIsBrowserStartupCompleteFromDBThread()); |
| EXPECT_FALSE(AfterStartupTaskUtils::IsBrowserStartupComplete()); |
| AfterStartupTaskUtils::SetBrowserStartupIsCompleteForTesting(); |
| EXPECT_TRUE(AfterStartupTaskUtils::IsBrowserStartupComplete()); |
| EXPECT_TRUE(GetIsBrowserStartupCompleteFromDBThread()); |
| } |
| |
| TEST_F(AfterStartupTaskTest, PostTask) { |
| // Nothing should be posted prior to startup completion. |
| EXPECT_FALSE(AfterStartupTaskUtils::IsBrowserStartupComplete()); |
| AfterStartupTaskUtils::PostTask( |
| FROM_HERE, ui_thread_, |
| base::Bind(&AfterStartupTaskTest::VerifyExpectedThread, |
| BrowserThread::UI)); |
| AfterStartupTaskUtils::PostTask( |
| FROM_HERE, db_thread_, |
| base::Bind(&AfterStartupTaskTest::VerifyExpectedThread, |
| BrowserThread::DB)); |
| PostAfterStartupTaskFromDBThread( |
| FROM_HERE, ui_thread_, |
| base::Bind(&AfterStartupTaskTest::VerifyExpectedThread, |
| BrowserThread::UI)); |
| PostAfterStartupTaskFromDBThread( |
| FROM_HERE, db_thread_, |
| base::Bind(&AfterStartupTaskTest::VerifyExpectedThread, |
| BrowserThread::DB)); |
| RunLoop().RunUntilIdle(); |
| EXPECT_EQ(0, db_thread_->total_task_count() + ui_thread_->total_task_count()); |
| |
| // Queued tasks should be posted upon setting the flag. |
| AfterStartupTaskUtils::SetBrowserStartupIsCompleteForTesting(); |
| EXPECT_EQ(2, db_thread_->posted_task_count()); |
| EXPECT_EQ(2, ui_thread_->posted_task_count()); |
| FlushDBThread(); |
| RunLoop().RunUntilIdle(); |
| EXPECT_EQ(2, db_thread_->ran_task_count()); |
| EXPECT_EQ(2, ui_thread_->ran_task_count()); |
| |
| db_thread_->reset_task_counts(); |
| ui_thread_->reset_task_counts(); |
| EXPECT_EQ(0, db_thread_->total_task_count() + ui_thread_->total_task_count()); |
| |
| // Tasks posted after startup should get posted immediately. |
| AfterStartupTaskUtils::PostTask(FROM_HERE, ui_thread_, |
| base::Bind(&base::DoNothing)); |
| AfterStartupTaskUtils::PostTask(FROM_HERE, db_thread_, |
| base::Bind(&base::DoNothing)); |
| EXPECT_EQ(1, db_thread_->posted_task_count()); |
| EXPECT_EQ(1, ui_thread_->posted_task_count()); |
| PostAfterStartupTaskFromDBThread(FROM_HERE, ui_thread_, |
| base::Bind(&base::DoNothing)); |
| PostAfterStartupTaskFromDBThread(FROM_HERE, db_thread_, |
| base::Bind(&base::DoNothing)); |
| EXPECT_EQ(2, db_thread_->posted_task_count()); |
| EXPECT_EQ(2, ui_thread_->posted_task_count()); |
| FlushDBThread(); |
| RunLoop().RunUntilIdle(); |
| EXPECT_EQ(2, db_thread_->ran_task_count()); |
| EXPECT_EQ(2, ui_thread_->ran_task_count()); |
| } |