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Side by Side Diff: base/singleton_unittest.cc

Issue 2042003: Switch some Singletons to use LeakySingleton. Base URL: http://src.chromium.org/git/chromium.git
Patch Set: More build fixes. Created 10 years, 7 months ago
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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "base/at_exit.h" 5 #include "base/at_exit.h"
6 #include "base/file_util.h" 6 #include "base/file_util.h"
7 #include "base/path_service.h" 7 #include "base/path_service.h"
8 #include "base/singleton.h" 8 #include "base/singleton.h"
9 #include "testing/gtest/include/gtest/gtest.h" 9 #include "testing/gtest/include/gtest/gtest.h"
10 10
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37 37
38 struct LeakTrait : public CallbackTrait { 38 struct LeakTrait : public CallbackTrait {
39 static const bool kRegisterAtExit = false; 39 static const bool kRegisterAtExit = false;
40 }; 40 };
41 41
42 int* SingletonInt1() { 42 int* SingletonInt1() {
43 return Singleton<int>::get(); 43 return Singleton<int>::get();
44 } 44 }
45 45
46 int* SingletonInt2() { 46 int* SingletonInt2() {
47 typedef int FooType;
47 // Force to use a different singleton than SingletonInt1. 48 // Force to use a different singleton than SingletonInt1.
48 return Singleton<int, DefaultSingletonTraits<int> >::get(); 49 return Singleton<FooType>::get();
49 } 50 }
50 51
51 class DummyDifferentiatingClass { 52 class DummyDifferentiatingClass {
52 }; 53 };
53 54
54 int* SingletonInt3() { 55 int* SingletonInt3() {
55 // Force to use a different singleton than SingletonInt1 and SingletonInt2. 56 // Force to use a different singleton than SingletonInt1 and SingletonInt2.
56 // Note that any type can be used; int, float, std::wstring... 57 // Note that any type can be used; int, float, std::wstring...
57 return Singleton<int, DefaultSingletonTraits<int>, 58 return Singleton<int, DefaultSingletonTraits<int>,
58 DummyDifferentiatingClass>::get(); 59 DummyDifferentiatingClass>::get();
(...skipping 68 matching lines...) Expand 10 before | Expand all | Expand 10 after
127 int* singleton_int_4; 128 int* singleton_int_4;
128 int* singleton_int_5; 129 int* singleton_int_5;
129 CallbackFunc* leaky_singleton; 130 CallbackFunc* leaky_singleton;
130 131
131 { 132 {
132 base::ShadowingAtExitManager sem; 133 base::ShadowingAtExitManager sem;
133 { 134 {
134 singleton_int_1 = SingletonInt1(); 135 singleton_int_1 = SingletonInt1();
135 } 136 }
136 // Ensure POD type initialization. 137 // Ensure POD type initialization.
137 EXPECT_EQ(*singleton_int_1, 0); 138 EXPECT_EQ(0, *singleton_int_1);
138 *singleton_int_1 = 1; 139 *singleton_int_1 = 1;
139 140
140 EXPECT_EQ(singleton_int_1, SingletonInt1()); 141 EXPECT_EQ(singleton_int_1, SingletonInt1());
141 EXPECT_EQ(*singleton_int_1, 1); 142 EXPECT_EQ(1, *singleton_int_1);
142 143
143 { 144 {
144 singleton_int_2 = SingletonInt2(); 145 singleton_int_2 = SingletonInt2();
145 } 146 }
146 // Same instance that 1. 147 // Same instance that 1.
147 EXPECT_EQ(*singleton_int_2, 1); 148 EXPECT_EQ(1, *singleton_int_2);
148 EXPECT_EQ(singleton_int_1, singleton_int_2); 149 EXPECT_EQ(singleton_int_1, singleton_int_2);
149 150
150 { 151 {
151 singleton_int_3 = SingletonInt3(); 152 singleton_int_3 = SingletonInt3();
152 } 153 }
153 // Different instance than 1 and 2. 154 // Different instance than 1 and 2.
154 EXPECT_EQ(*singleton_int_3, 0); 155 EXPECT_EQ(0, *singleton_int_3);
155 EXPECT_NE(singleton_int_1, singleton_int_3); 156 EXPECT_NE(singleton_int_1, singleton_int_3);
156 *singleton_int_3 = 3; 157 *singleton_int_3 = 3;
157 EXPECT_EQ(*singleton_int_1, 1); 158 EXPECT_EQ(1, *singleton_int_1);
158 EXPECT_EQ(*singleton_int_2, 1); 159 EXPECT_EQ(1, *singleton_int_2);
159 160
160 { 161 {
161 singleton_int_4 = SingletonInt4(); 162 singleton_int_4 = SingletonInt4();
162 } 163 }
163 // Use a lock for creation. Not really tested at length. 164 // Use a lock for creation. Not really tested at length.
164 EXPECT_EQ(*singleton_int_4, 0); 165 EXPECT_EQ(*singleton_int_4, 0);
165 *singleton_int_4 = 4; 166 *singleton_int_4 = 4;
166 EXPECT_NE(singleton_int_1, singleton_int_4); 167 EXPECT_NE(singleton_int_1, singleton_int_4);
167 EXPECT_NE(singleton_int_3, singleton_int_4); 168 EXPECT_NE(singleton_int_3, singleton_int_4);
168 169
(...skipping 26 matching lines...) Expand all
195 EXPECT_EQ(*singleton_int_1, 0); 196 EXPECT_EQ(*singleton_int_1, 0);
196 } 197 }
197 { 198 {
198 singleton_int_5 = SingletonInt5(); 199 singleton_int_5 = SingletonInt5();
199 EXPECT_EQ(*singleton_int_5, 5); 200 EXPECT_EQ(*singleton_int_5, 5);
200 } 201 }
201 } 202 }
202 // The leaky singleton shouldn't leak since SingletonLeak has not been called. 203 // The leaky singleton shouldn't leak since SingletonLeak has not been called.
203 VerifiesCallbacksNotCalled(); 204 VerifiesCallbacksNotCalled();
204 } 205 }
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