1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "gtest/gtest.h" 18 19 #include "chre/util/conditional_lock_guard.h" 20 21 using chre::ConditionalLockGuard; 22 23 class MockMutex { 24 public: 25 MockMutex() : mLockCount(0) {} 26 27 void lock() { 28 mLockCount++; 29 } 30 31 void unlock() { 32 mLockCount--; 33 } 34 35 int getLockCount() { 36 return mLockCount; 37 } 38 39 private: 40 int mLockCount; 41 }; 42 43 TEST(ConditionalLockGuard, LockUnlock) { 44 MockMutex mutex; 45 ASSERT_EQ(mutex.getLockCount(), 0); 46 47 { 48 ConditionalLockGuard<MockMutex> lock(mutex, true); 49 EXPECT_EQ(mutex.getLockCount(), 1); 50 } 51 52 EXPECT_EQ(mutex.getLockCount(), 0); 53 } 54 55 TEST(ConditionalLockGuard, DontLock) { 56 MockMutex mutex; 57 ASSERT_EQ(mutex.getLockCount(), 0); 58 59 { 60 ConditionalLockGuard<MockMutex> lock(mutex, false); 61 EXPECT_EQ(mutex.getLockCount(), 0); 62 } 63 64 EXPECT_EQ(mutex.getLockCount(), 0); 65 } 66
