xref: /aosp_15_r20/external/cronet/base/thread_annotations_unittest.cc (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b) 
1 // Copyright 2018 The Chromium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "thread_annotations.h"
6 
7 #include "base/memory/raw_ref.h"
8 #include "testing/gtest/include/gtest/gtest.h"
9 
10 namespace {
11 
12 class LOCKABLE Lock {
13  public:
Acquire()14   void Acquire() EXCLUSIVE_LOCK_FUNCTION() {}
Release()15   void Release() UNLOCK_FUNCTION() {}
16 };
17 
18 class SCOPED_LOCKABLE AutoLock {
19  public:
EXCLUSIVE_LOCK_FUNCTION(lock)20   AutoLock(Lock& lock) EXCLUSIVE_LOCK_FUNCTION(lock) : lock_(lock) {
21     lock.Acquire();
22   }
UNLOCK_FUNCTION()23   ~AutoLock() UNLOCK_FUNCTION() { lock_->Release(); }
24 
25  private:
26   const raw_ref<Lock> lock_;
27 };
28 
29 class ThreadSafe {
30  public:
31   void ExplicitIncrement();
32   void ImplicitIncrement();
33 
34  private:
35   Lock lock_;
36   int counter_ GUARDED_BY(lock_);
37 };
38 
ExplicitIncrement()39 void ThreadSafe::ExplicitIncrement() {
40   lock_.Acquire();
41   ++counter_;
42   lock_.Release();
43 }
44 
ImplicitIncrement()45 void ThreadSafe::ImplicitIncrement() {
46   AutoLock auto_lock(lock_);
47   counter_++;
48 }
49 
TEST(ThreadAnnotationsTest,ExplicitIncrement)50 TEST(ThreadAnnotationsTest, ExplicitIncrement) {
51   ThreadSafe thread_safe;
52   thread_safe.ExplicitIncrement();
53 }
TEST(ThreadAnnotationsTest,ImplicitIncrement)54 TEST(ThreadAnnotationsTest, ImplicitIncrement) {
55   ThreadSafe thread_safe;
56   thread_safe.ImplicitIncrement();
57 }
58 
59 }  // anonymous namespace
60