Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / base / threading / non_thread_safe_unittest.cc
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
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 "base/basictypes.h"
6 #include "base/logging.h"
7 #include "base/memory/scoped_ptr.h"
8 #include "base/threading/non_thread_safe.h"
9 #include "base/threading/simple_thread.h"
10 #include "testing/gtest/include/gtest/gtest.h"
11
12 // Duplicated from base/threading/non_thread_safe.h so that we can be
13 // good citizens there and undef the macro.
14 #if (!defined(NDEBUG) || defined(DCHECK_ALWAYS_ON))
15 #define ENABLE_NON_THREAD_SAFE 1
16 #else
17 #define ENABLE_NON_THREAD_SAFE 0
18 #endif
19
20 namespace base {
21
22 namespace {
23
24 // Simple class to exersice the basics of NonThreadSafe.
25 // Both the destructor and DoStuff should verify that they were
26 // called on the same thread as the constructor.
27 class NonThreadSafeClass : public NonThreadSafe {
28  public:
29   NonThreadSafeClass() {}
30
31   // Verifies that it was called on the same thread as the constructor.
32   void DoStuff() {
33     DCHECK(CalledOnValidThread());
34   }
35
36   void DetachFromThread() {
37     NonThreadSafe::DetachFromThread();
38   }
39
40   static void MethodOnDifferentThreadImpl();
41   static void DestructorOnDifferentThreadImpl();
42
43  private:
44   DISALLOW_COPY_AND_ASSIGN(NonThreadSafeClass);
45 };
46
47 // Calls NonThreadSafeClass::DoStuff on another thread.
48 class CallDoStuffOnThread : public SimpleThread {
49  public:
50   explicit CallDoStuffOnThread(NonThreadSafeClass* non_thread_safe_class)
51       : SimpleThread("call_do_stuff_on_thread"),
52         non_thread_safe_class_(non_thread_safe_class) {
53   }
54
55   void Run() override { non_thread_safe_class_->DoStuff(); }
56
57  private:
58   NonThreadSafeClass* non_thread_safe_class_;
59
60   DISALLOW_COPY_AND_ASSIGN(CallDoStuffOnThread);
61 };
62
63 // Deletes NonThreadSafeClass on a different thread.
64 class DeleteNonThreadSafeClassOnThread : public SimpleThread {
65  public:
66   explicit DeleteNonThreadSafeClassOnThread(
67       NonThreadSafeClass* non_thread_safe_class)
68       : SimpleThread("delete_non_thread_safe_class_on_thread"),
69         non_thread_safe_class_(non_thread_safe_class) {
70   }
71
72   void Run() override { non_thread_safe_class_.reset(); }
73
74  private:
75   scoped_ptr<NonThreadSafeClass> non_thread_safe_class_;
76
77   DISALLOW_COPY_AND_ASSIGN(DeleteNonThreadSafeClassOnThread);
78 };
79
80 }  // namespace
81
82 TEST(NonThreadSafeTest, CallsAllowedOnSameThread) {
83   scoped_ptr<NonThreadSafeClass> non_thread_safe_class(
84       new NonThreadSafeClass);
85
86   // Verify that DoStuff doesn't assert.
87   non_thread_safe_class->DoStuff();
88
89   // Verify that the destructor doesn't assert.
90   non_thread_safe_class.reset();
91 }
92
93 TEST(NonThreadSafeTest, DetachThenDestructOnDifferentThread) {
94   scoped_ptr<NonThreadSafeClass> non_thread_safe_class(
95       new NonThreadSafeClass);
96
97   // Verify that the destructor doesn't assert when called on a different thread
98   // after a detach.
99   non_thread_safe_class->DetachFromThread();
100   DeleteNonThreadSafeClassOnThread delete_on_thread(
101       non_thread_safe_class.release());
102
103   delete_on_thread.Start();
104   delete_on_thread.Join();
105 }
106
107 #if GTEST_HAS_DEATH_TEST || !ENABLE_NON_THREAD_SAFE
108
109 void NonThreadSafeClass::MethodOnDifferentThreadImpl() {
110   scoped_ptr<NonThreadSafeClass> non_thread_safe_class(
111       new NonThreadSafeClass);
112
113   // Verify that DoStuff asserts in debug builds only when called
114   // on a different thread.
115   CallDoStuffOnThread call_on_thread(non_thread_safe_class.get());
116
117   call_on_thread.Start();
118   call_on_thread.Join();
119 }
120
121 #if ENABLE_NON_THREAD_SAFE
122 TEST(NonThreadSafeDeathTest, MethodNotAllowedOnDifferentThreadInDebug) {
123   ASSERT_DEATH({
124       NonThreadSafeClass::MethodOnDifferentThreadImpl();
125     }, "");
126 }
127 #else
128 TEST(NonThreadSafeTest, MethodAllowedOnDifferentThreadInRelease) {
129   NonThreadSafeClass::MethodOnDifferentThreadImpl();
130 }
131 #endif  // ENABLE_NON_THREAD_SAFE
132
133 void NonThreadSafeClass::DestructorOnDifferentThreadImpl() {
134   scoped_ptr<NonThreadSafeClass> non_thread_safe_class(
135       new NonThreadSafeClass);
136
137   // Verify that the destructor asserts in debug builds only
138   // when called on a different thread.
139   DeleteNonThreadSafeClassOnThread delete_on_thread(
140       non_thread_safe_class.release());
141
142   delete_on_thread.Start();
143   delete_on_thread.Join();
144 }
145
146 #if ENABLE_NON_THREAD_SAFE
147 TEST(NonThreadSafeDeathTest, DestructorNotAllowedOnDifferentThreadInDebug) {
148   ASSERT_DEATH({
149       NonThreadSafeClass::DestructorOnDifferentThreadImpl();
150     }, "");
151 }
152 #else
153 TEST(NonThreadSafeTest, DestructorAllowedOnDifferentThreadInRelease) {
154   NonThreadSafeClass::DestructorOnDifferentThreadImpl();
155 }
156 #endif  // ENABLE_NON_THREAD_SAFE
157
158 #endif  // GTEST_HAS_DEATH_TEST || !ENABLE_NON_THREAD_SAFE
159
160 // Just in case we ever get lumped together with other compilation units.
161 #undef ENABLE_NON_THREAD_SAFE
162
163 }  // namespace base