| // Copyright (c) 2011 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. |
| |
| #ifndef BASE_TEST_THREAD_TEST_HELPER_H_ |
| #define BASE_TEST_THREAD_TEST_HELPER_H_ |
| |
| #include "base/memory/ref_counted.h" |
| #include "base/synchronization/waitable_event.h" |
| #include "base/task/sequenced_task_runner.h" |
| |
| namespace base { |
| |
| // Helper class that executes code on a given target sequence/thread while |
| // blocking on the invoking sequence/thread. To use, derive from this class and |
| // overwrite RunTest. An alternative use of this class is to use it directly. It |
| // will then block until all pending tasks on a given sequence/thread have been |
| // executed. |
| class ThreadTestHelper : public RefCountedThreadSafe<ThreadTestHelper> { |
| public: |
| explicit ThreadTestHelper(scoped_refptr<SequencedTaskRunner> target_sequence); |
| |
| ThreadTestHelper(const ThreadTestHelper&) = delete; |
| ThreadTestHelper& operator=(const ThreadTestHelper&) = delete; |
| |
| // True if RunTest() was successfully executed on the target sequence. |
| [[nodiscard]] bool Run(); |
| |
| virtual void RunTest(); |
| |
| protected: |
| friend class RefCountedThreadSafe<ThreadTestHelper>; |
| |
| virtual ~ThreadTestHelper(); |
| |
| // Use this method to store the result of RunTest(). |
| void set_test_result(bool test_result) { test_result_ = test_result; } |
| |
| private: |
| void RunOnSequence(); |
| |
| bool test_result_; |
| scoped_refptr<SequencedTaskRunner> target_sequence_; |
| WaitableEvent done_event_; |
| }; |
| |
| } // namespace base |
| |
| #endif // BASE_TEST_THREAD_TEST_HELPER_H_ |