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:
MockMutex()25 MockMutex() : mLockCount(0) {}
26
lock()27 void lock() {
28 mLockCount++;
29 }
30
unlock()31 void unlock() {
32 mLockCount--;
33 }
34
getLockCount()35 int getLockCount() {
36 return mLockCount;
37 }
38
39 private:
40 int mLockCount;
41 };
42
TEST(ConditionalLockGuard,LockUnlock)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
TEST(ConditionalLockGuard,DontLock)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