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Diffstat (limited to 'src/components/include/test/utils/test_async_waiter.h')
-rw-r--r-- | src/components/include/test/utils/test_async_waiter.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/components/include/test/utils/test_async_waiter.h b/src/components/include/test/utils/test_async_waiter.h new file mode 100644 index 0000000000..fee7672e93 --- /dev/null +++ b/src/components/include/test/utils/test_async_waiter.h @@ -0,0 +1,106 @@ +/* + * Copyright (c) 2017, Ford Motor Company + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following + * disclaimer in the documentation and/or other materials provided with the + * distribution. + * + * Neither the name of the Ford Motor Company nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef SRC_COMPONENTS_INCLUDE_TEST_UTILS_TEST_ASYNC_WAITER_H_ +#define SRC_COMPONENTS_INCLUDE_TEST_UTILS_TEST_ASYNC_WAITER_H_ + +#include <stdint.h> + +#include "utils/lock.h" +#include "utils/conditional_variable.h" + +namespace test { + +/** + * @brief The TestAsyncWaiter class + * Tool with condition variable style interface + * to be used in unit tests for asynchronous calls waiting. + * Could wait specified number of calls, waiting for timeout is also supported + * + * Usage example: + * TEST() { + * TestAsyncWaiter waiter; + * EXPECT_CALL(mock, InterestingCall()) + * .Times(n) + * .WillRepeatedly(NotifyTestAsyncWaiter(&waiter)); + * EXPECT_TRUE(waiter.WaitFor(n, 1000)); + * } + */ +class TestAsyncWaiter { + public: + TestAsyncWaiter() : notified_(false), count_(0), lock_(), cond_var_() {} + + /** + * @brief WaitFor + * Waits for specified number of notifications but not longer + * than given timeout for each notification + * @param wait_count Number of notifications to wait for + * @param milliseconds Timeout in milliseconds + * @return True if specified number of notifications have been received, + * false otherwise (return by timeout) + */ + bool WaitFor(const uint32_t wait_count, const uint32_t milliseconds) { + sync_primitives::AutoLock auto_lock(lock_); + while (count_ < wait_count) { + notified_ = false; + if (sync_primitives::ConditionalVariable::kTimeout == + cond_var_.WaitFor(auto_lock, milliseconds)) { + return false; + } + } + return true; + } + + /** + * @brief Notify + * Notifies async waiter + */ + void Notify() { + sync_primitives::AutoLock auto_lock(lock_); + notified_ = true; + ++count_; + cond_var_.Broadcast(); + } + + private: + bool notified_; + uint32_t count_; + sync_primitives::Lock lock_; + sync_primitives::ConditionalVariable cond_var_; +}; + +ACTION_P(NotifyTestAsyncWaiter, test_async_waiter) { + test_async_waiter->Notify(); +} + +} // namespace test +#endif // SRC_COMPONENTS_INCLUDE_TEST_UTILS_TEST_ASYNC_WAITER_H_ |