| // Copyright 2017 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 "base/test/scoped_task_environment.h" |
| |
| #include "base/bind.h" |
| #include "base/synchronization/atomic_flag.h" |
| #include "base/synchronization/waitable_event.h" |
| #include "base/task_scheduler/post_task.h" |
| #include "base/test/test_timeouts.h" |
| #include "base/threading/platform_thread.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace base { |
| namespace test { |
| |
| namespace { |
| |
| void VerifyRunUntilIdleDidNotReturnAndSetFlag( |
| AtomicFlag* run_until_idle_returned, |
| AtomicFlag* task_ran) { |
| EXPECT_FALSE(run_until_idle_returned->IsSet()); |
| task_ran->Set(); |
| } |
| |
| void RunUntilIdleTest( |
| ScopedTaskEnvironment::ExecutionMode execution_control_mode) { |
| AtomicFlag run_until_idle_returned; |
| ScopedTaskEnvironment scoped_task_environment( |
| ScopedTaskEnvironment::MainThreadType::DEFAULT, execution_control_mode); |
| |
| AtomicFlag first_main_thread_task_ran; |
| ThreadTaskRunnerHandle::Get()->PostTask( |
| FROM_HERE, BindOnce(&VerifyRunUntilIdleDidNotReturnAndSetFlag, |
| Unretained(&run_until_idle_returned), |
| Unretained(&first_main_thread_task_ran))); |
| |
| AtomicFlag first_task_scheduler_task_ran; |
| PostTask(FROM_HERE, BindOnce(&VerifyRunUntilIdleDidNotReturnAndSetFlag, |
| Unretained(&run_until_idle_returned), |
| Unretained(&first_task_scheduler_task_ran))); |
| |
| AtomicFlag second_task_scheduler_task_ran; |
| AtomicFlag second_main_thread_task_ran; |
| PostTaskAndReply(FROM_HERE, |
| BindOnce(&VerifyRunUntilIdleDidNotReturnAndSetFlag, |
| Unretained(&run_until_idle_returned), |
| Unretained(&second_task_scheduler_task_ran)), |
| BindOnce(&VerifyRunUntilIdleDidNotReturnAndSetFlag, |
| Unretained(&run_until_idle_returned), |
| Unretained(&second_main_thread_task_ran))); |
| |
| scoped_task_environment.RunUntilIdle(); |
| run_until_idle_returned.Set(); |
| |
| EXPECT_TRUE(first_main_thread_task_ran.IsSet()); |
| EXPECT_TRUE(first_task_scheduler_task_ran.IsSet()); |
| EXPECT_TRUE(second_task_scheduler_task_ran.IsSet()); |
| EXPECT_TRUE(second_main_thread_task_ran.IsSet()); |
| } |
| |
| } // namespace |
| |
| TEST(ScopedTaskEnvironmentTest, QueuedRunUntilIdle) { |
| RunUntilIdleTest(ScopedTaskEnvironment::ExecutionMode::QUEUED); |
| } |
| |
| TEST(ScopedTaskEnvironmentTest, AsyncRunUntilIdle) { |
| RunUntilIdleTest(ScopedTaskEnvironment::ExecutionMode::ASYNC); |
| } |
| |
| // Verify that tasks posted to an ExecutionMode::QUEUED ScopedTaskEnvironment do |
| // not run outside of RunUntilIdle(). |
| TEST(ScopedTaskEnvironmentTest, QueuedTasksDoNotRunOutsideOfRunUntilIdle) { |
| ScopedTaskEnvironment scoped_task_environment( |
| ScopedTaskEnvironment::MainThreadType::DEFAULT, |
| ScopedTaskEnvironment::ExecutionMode::QUEUED); |
| |
| AtomicFlag run_until_idle_called; |
| PostTask(FROM_HERE, BindOnce( |
| [](AtomicFlag* run_until_idle_called) { |
| EXPECT_TRUE(run_until_idle_called->IsSet()); |
| }, |
| Unretained(&run_until_idle_called))); |
| PlatformThread::Sleep(TestTimeouts::tiny_timeout()); |
| run_until_idle_called.Set(); |
| scoped_task_environment.RunUntilIdle(); |
| |
| AtomicFlag other_run_until_idle_called; |
| PostTask(FROM_HERE, BindOnce( |
| [](AtomicFlag* other_run_until_idle_called) { |
| EXPECT_TRUE(other_run_until_idle_called->IsSet()); |
| }, |
| Unretained(&other_run_until_idle_called))); |
| PlatformThread::Sleep(TestTimeouts::tiny_timeout()); |
| other_run_until_idle_called.Set(); |
| scoped_task_environment.RunUntilIdle(); |
| } |
| |
| // Verify that a task posted to an ExecutionMode::ASYNC ScopedTaskEnvironment |
| // can run without a call to RunUntilIdle(). |
| TEST(ScopedTaskEnvironmentTest, AsyncTasksRunAsTheyArePosted) { |
| ScopedTaskEnvironment scoped_task_environment( |
| ScopedTaskEnvironment::MainThreadType::DEFAULT, |
| ScopedTaskEnvironment::ExecutionMode::ASYNC); |
| |
| WaitableEvent task_ran(WaitableEvent::ResetPolicy::MANUAL, |
| WaitableEvent::InitialState::NOT_SIGNALED); |
| PostTask(FROM_HERE, |
| BindOnce([](WaitableEvent* task_ran) { task_ran->Signal(); }, |
| Unretained(&task_ran))); |
| task_ran.Wait(); |
| } |
| |
| // Verify that a task posted to an ExecutionMode::ASYNC ScopedTaskEnvironment |
| // after a call to RunUntilIdle() can run without another call to |
| // RunUntilIdle(). |
| TEST(ScopedTaskEnvironmentTest, AsyncTasksRunAsTheyArePostedAfterRunUntilIdle) { |
| ScopedTaskEnvironment scoped_task_environment( |
| ScopedTaskEnvironment::MainThreadType::DEFAULT, |
| ScopedTaskEnvironment::ExecutionMode::ASYNC); |
| |
| scoped_task_environment.RunUntilIdle(); |
| |
| WaitableEvent task_ran(WaitableEvent::ResetPolicy::MANUAL, |
| WaitableEvent::InitialState::NOT_SIGNALED); |
| PostTask(FROM_HERE, |
| BindOnce([](WaitableEvent* task_ran) { task_ran->Signal(); }, |
| Unretained(&task_ran))); |
| task_ran.Wait(); |
| } |
| |
| } // namespace test |
| } // namespace base |