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Diffstat (limited to 'base/deferred_sequenced_task_runner_unittest.cc')
| -rw-r--r-- | base/deferred_sequenced_task_runner_unittest.cc | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/base/deferred_sequenced_task_runner_unittest.cc b/base/deferred_sequenced_task_runner_unittest.cc new file mode 100644 index 0000000..c033ba8 --- /dev/null +++ b/base/deferred_sequenced_task_runner_unittest.cc @@ -0,0 +1,184 @@ +// Copyright (c) 2013 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/deferred_sequenced_task_runner.h" + +#include "base/basictypes.h" +#include "base/bind.h" +#include "base/bind_helpers.h" +#include "base/memory/ref_counted.h" +#include "base/message_loop.h" +#include "base/message_loop_proxy.h" +#include "base/threading/non_thread_safe.h" +#include "base/threading/thread.h" +#include "testing/gmock/include/gmock/gmock.h" +#include "testing/gtest/include/gtest/gtest.h" + +namespace { + +class DeferredSequencedTaskRunnerTest : public testing::Test, + public base::NonThreadSafe { + public: + class ExecuteTaskOnDestructor : + public base::RefCounted<ExecuteTaskOnDestructor> { + public: + ExecuteTaskOnDestructor( + DeferredSequencedTaskRunnerTest* executor, + int task_id) + : executor_(executor), + task_id_(task_id) { + } + private: + friend class base::RefCounted<ExecuteTaskOnDestructor>; + virtual ~ExecuteTaskOnDestructor() { + executor_->ExecuteTask(task_id_); + } + DeferredSequencedTaskRunnerTest* executor_; + int task_id_; + }; + + void ExecuteTask(int task_id) { + base::AutoLock lock(lock_); + executed_task_ids_.push_back(task_id); + } + + void PostExecuteTask(int task_id) { + runner_->PostTask(FROM_HERE, + base::Bind(&DeferredSequencedTaskRunnerTest::ExecuteTask, + base::Unretained(this), + task_id)); + } + + void StartRunner() { + runner_->Start(); + } + + void DoNothing(ExecuteTaskOnDestructor* object) { + } + + protected: + DeferredSequencedTaskRunnerTest() : + loop_(), + runner_( + new base::DeferredSequencedTaskRunner(loop_.message_loop_proxy())) { + } + + MessageLoop loop_; + scoped_refptr<base::DeferredSequencedTaskRunner> runner_; + mutable base::Lock lock_; + std::vector<int> executed_task_ids_; +}; + +TEST_F(DeferredSequencedTaskRunnerTest, Stopped) { + PostExecuteTask(1); + loop_.RunUntilIdle(); + EXPECT_THAT(executed_task_ids_, testing::ElementsAre()); +} + +TEST_F(DeferredSequencedTaskRunnerTest, Start) { + StartRunner(); + PostExecuteTask(1); + loop_.RunUntilIdle(); + EXPECT_THAT(executed_task_ids_, testing::ElementsAre(1)); +} + +TEST_F(DeferredSequencedTaskRunnerTest, StartWithMultipleElements) { + StartRunner(); + for (int i = 1; i < 5; ++i) + PostExecuteTask(i); + + loop_.RunUntilIdle(); + EXPECT_THAT(executed_task_ids_, testing::ElementsAre(1, 2, 3, 4)); +} + +TEST_F(DeferredSequencedTaskRunnerTest, DeferredStart) { + PostExecuteTask(1); + loop_.RunUntilIdle(); + EXPECT_THAT(executed_task_ids_, testing::ElementsAre()); + + StartRunner(); + loop_.RunUntilIdle(); + EXPECT_THAT(executed_task_ids_, testing::ElementsAre(1)); + + PostExecuteTask(2); + loop_.RunUntilIdle(); + EXPECT_THAT(executed_task_ids_, testing::ElementsAre(1, 2)); +} + +TEST_F(DeferredSequencedTaskRunnerTest, DeferredStartWithMultipleElements) { + for (int i = 1; i < 5; ++i) + PostExecuteTask(i); + loop_.RunUntilIdle(); + EXPECT_THAT(executed_task_ids_, testing::ElementsAre()); + + StartRunner(); + for (int i = 5; i < 9; ++i) + PostExecuteTask(i); + loop_.RunUntilIdle(); + EXPECT_THAT(executed_task_ids_, testing::ElementsAre(1, 2, 3, 4, 5, 6, 7, 8)); +} + +TEST_F(DeferredSequencedTaskRunnerTest, DeferredStartWithMultipleThreads) { + { + base::Thread thread1("DeferredSequencedTaskRunnerTestThread1"); + base::Thread thread2("DeferredSequencedTaskRunnerTestThread2"); + thread1.Start(); + thread2.Start(); + for (int i = 0; i < 5; ++i) { + thread1.message_loop()->PostTask( + FROM_HERE, + base::Bind(&DeferredSequencedTaskRunnerTest::PostExecuteTask, + base::Unretained(this), + 2 * i)); + thread2.message_loop()->PostTask( + FROM_HERE, + base::Bind(&DeferredSequencedTaskRunnerTest::PostExecuteTask, + base::Unretained(this), + 2 * i + 1)); + if (i == 2) { + thread1.message_loop()->PostTask( + FROM_HERE, + base::Bind(&DeferredSequencedTaskRunnerTest::StartRunner, + base::Unretained(this))); + } + } + } + + loop_.RunUntilIdle(); + EXPECT_THAT(executed_task_ids_, + testing::WhenSorted(testing::ElementsAre(0, 1, 2, 3, 4, 5, 6, 7, 8, 9))); +} + +TEST_F(DeferredSequencedTaskRunnerTest, ObjectDestructionOrder) { + { + base::Thread thread("DeferredSequencedTaskRunnerTestThread"); + thread.Start(); + runner_ = + new base::DeferredSequencedTaskRunner(thread.message_loop_proxy()); + for (int i = 0; i < 5; ++i) { + { + // Use a block to ensure that no reference to |short_lived_object| + // is kept on the main thread after it is posted to |runner_|. + scoped_refptr<ExecuteTaskOnDestructor> short_lived_object = + new ExecuteTaskOnDestructor(this, 2 * i); + runner_->PostTask( + FROM_HERE, + base::Bind(&DeferredSequencedTaskRunnerTest::DoNothing, + base::Unretained(this), + short_lived_object)); + } + // |short_lived_object| with id |2 * i| should be destroyed before the + // task |2 * i + 1| is executed. + PostExecuteTask(2 * i + 1); + } + StartRunner(); + } + + // All |short_lived_object| with id |2 * i| are destroyed before the task + // |2 * i + 1| is executed. + EXPECT_THAT(executed_task_ids_, + testing::ElementsAre(0, 1, 2, 3, 4, 5, 6, 7, 8, 9)); +} + +} // namespace |