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// 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(VirtualMutex, LockUnlock) {
pw::sync::VirtualMutex mutex;
mutex.lock();
// TODO(pwbug/291): Ensure it fails to lock when already held.
// EXPECT_FALSE(mutex.try_lock());
mutex.unlock();
}
VirtualMutex static_virtual_mutex;
TEST(VirtualMutex, LockUnlockStatic) {
static_virtual_mutex.lock();
// TODO(pwbug/291): Ensure it fails to lock when already held.
// EXPECT_FALSE(static_virtual_mutex.try_lock());
static_virtual_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
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