1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_TEST_THREAD_TEST_HELPER_H_ 6 #define BASE_TEST_THREAD_TEST_HELPER_H_ 7 8 #include "base/compiler_specific.h" 9 #include "base/memory/ref_counted.h" 10 #include "base/message_loop/message_loop_proxy.h" 11 #include "base/synchronization/waitable_event.h" 12 13 namespace base { 14 15 // Helper class that executes code on a given thread while blocking on the 16 // invoking thread. To use, derive from this class and overwrite RunTest. An 17 // alternative use of this class is to use it directly. It will then block 18 // until all pending tasks on a given thread have been executed. 19 class ThreadTestHelper : public RefCountedThreadSafe<ThreadTestHelper> { 20 public: 21 explicit ThreadTestHelper(MessageLoopProxy* target_thread); 22 23 // True if RunTest() was successfully executed on the target thread. 24 bool Run() WARN_UNUSED_RESULT; 25 26 virtual void RunTest(); 27 28 protected: 29 friend class RefCountedThreadSafe<ThreadTestHelper>; 30 31 virtual ~ThreadTestHelper(); 32 33 // Use this method to store the result of RunTest(). 34 void set_test_result(bool test_result) { test_result_ = test_result; } 35 36 private: 37 void RunInThread(); 38 39 bool test_result_; 40 scoped_refptr<MessageLoopProxy> target_thread_; 41 WaitableEvent done_event_; 42 43 DISALLOW_COPY_AND_ASSIGN(ThreadTestHelper); 44 }; 45 46 } // namespace base 47 48 #endif // BASE_TEST_THREAD_TEST_HELPER_H_ 49
