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