| // Copyright 2020 The Pigweed Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| // use this file except in compliance with the License. You may obtain a copy of |
| // the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| // License for the specific language governing permissions and limitations under |
| // the License. |
| |
| #include <chrono> |
| |
| #include "gtest/gtest.h" |
| #include "pw_sync/mutex.h" |
| |
| namespace pw::sync { |
| namespace { |
| |
| extern "C" { |
| |
| // Functions defined in mutex_facade_test_c.c which call the API from C. |
| void pw_sync_Mutex_CallLock(pw_sync_Mutex* mutex); |
| bool pw_sync_Mutex_CallTryLock(pw_sync_Mutex* mutex); |
| void pw_sync_Mutex_CallUnlock(pw_sync_Mutex* mutex); |
| |
| } // extern "C" |
| |
| // TODO(pwbug/291): Add real concurrency tests once we have pw::thread. |
| |
| TEST(Mutex, LockUnlock) { |
| pw::sync::Mutex mutex; |
| mutex.lock(); |
| // TODO(pwbug/291): Ensure it fails to lock when already held. |
| // EXPECT_FALSE(mutex.try_lock()); |
| mutex.unlock(); |
| } |
| |
| Mutex static_mutex; |
| TEST(Mutex, LockUnlockStatic) { |
| static_mutex.lock(); |
| // TODO(pwbug/291): Ensure it fails to lock when already held. |
| // EXPECT_FALSE(static_mutex.try_lock()); |
| static_mutex.unlock(); |
| } |
| |
| TEST(Mutex, TryLockUnlock) { |
| pw::sync::Mutex mutex; |
| const bool locked = mutex.try_lock(); |
| EXPECT_TRUE(locked); |
| if (locked) { |
| // TODO(pwbug/291): Ensure it fails to lock when already held. |
| // EXPECT_FALSE(mutex.try_lock()); |
| mutex.unlock(); |
| } |
| } |
| |
| TEST(Mutex, LockUnlockInC) { |
| pw::sync::Mutex mutex; |
| pw_sync_Mutex_CallLock(&mutex); |
| pw_sync_Mutex_CallUnlock(&mutex); |
| } |
| |
| TEST(Mutex, TryLockUnlockInC) { |
| pw::sync::Mutex mutex; |
| ASSERT_TRUE(pw_sync_Mutex_CallTryLock(&mutex)); |
| // TODO(pwbug/291): Ensure it fails to lock when already held. |
| // EXPECT_FALSE(pw_sync_Mutex_CallTryLock(&mutex)); |
| pw_sync_Mutex_CallUnlock(&mutex); |
| } |
| |
| } // namespace |
| } // namespace pw::sync |