Index: chrome/browser/after_startup_task_utils_unittest.cc |
diff --git a/chrome/browser/after_startup_task_utils_unittest.cc b/chrome/browser/after_startup_task_utils_unittest.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..bc6971d779a2cb634c194240fc9c19103217a851 |
--- /dev/null |
+++ b/chrome/browser/after_startup_task_utils_unittest.cc |
@@ -0,0 +1,199 @@ |
+// 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/message_loop/message_loop_proxy.h" |
+#include "base/run_loop.h" |
+#include "base/task_runner_util.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::SetBrowserStartupIsComplete(); |
+ 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::SetBrowserStartupIsComplete(); |
+ 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()); |
+} |