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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 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/leak_tracker.h" | 5 #include "base/leak_tracker.h" |
6 #include "base/scoped_ptr.h" | 6 #include "base/scoped_ptr.h" |
7 #include "testing/gtest/include/gtest/gtest.h" | 7 #include "testing/gtest/include/gtest/gtest.h" |
8 | 8 |
9 namespace { | 9 namespace { |
10 | 10 |
11 class ClassA { | 11 class ClassA { |
12 private: | 12 private: |
13 base::LeakTracker<ClassA> leak_tracker_; | 13 base::LeakTracker<ClassA> leak_tracker_; |
14 }; | 14 }; |
15 | 15 |
16 class ClassB { | 16 class ClassB { |
17 private: | 17 private: |
18 base::LeakTracker<ClassB> leak_tracker_; | 18 base::LeakTracker<ClassB> leak_tracker_; |
19 }; | 19 }; |
20 | 20 |
21 #ifdef NDEBUG | 21 #ifndef ENABLE_LEAK_TRACKER |
22 | 22 |
23 // In RELEASE mode, leak tracking is disabled. | 23 // If leak tracking is disabled, we should do nothing. |
24 TEST(LeakTrackerTest, ReleaseMode) { | 24 TEST(LeakTrackerTest, NotEnabled) { |
25 EXPECT_EQ(-1, base::LeakTracker<ClassA>::NumLiveInstances()); | 25 EXPECT_EQ(-1, base::LeakTracker<ClassA>::NumLiveInstances()); |
26 EXPECT_EQ(-1, base::LeakTracker<ClassB>::NumLiveInstances()); | 26 EXPECT_EQ(-1, base::LeakTracker<ClassB>::NumLiveInstances()); |
27 | 27 |
28 // Use scoped_ptr so compiler doesn't complain about unused variables. | 28 // Use scoped_ptr so compiler doesn't complain about unused variables. |
29 scoped_ptr<ClassA> a1(new ClassA); | 29 scoped_ptr<ClassA> a1(new ClassA); |
30 scoped_ptr<ClassB> b1(new ClassB); | 30 scoped_ptr<ClassB> b1(new ClassB); |
31 scoped_ptr<ClassB> b2(new ClassB); | 31 scoped_ptr<ClassB> b2(new ClassB); |
32 | 32 |
33 EXPECT_EQ(-1, base::LeakTracker<ClassA>::NumLiveInstances()); | 33 EXPECT_EQ(-1, base::LeakTracker<ClassA>::NumLiveInstances()); |
34 EXPECT_EQ(-1, base::LeakTracker<ClassB>::NumLiveInstances()); | 34 EXPECT_EQ(-1, base::LeakTracker<ClassB>::NumLiveInstances()); |
35 } | 35 } |
36 | 36 |
37 #else | 37 #else |
38 | 38 |
39 // In DEBUG mode, leak tracking should work. | 39 TEST(LeakTrackerTest, Basic) { |
40 TEST(LeakTrackerTest, DebugMode) { | |
41 { | 40 { |
42 ClassA a1; | 41 ClassA a1; |
43 | 42 |
44 EXPECT_EQ(1, base::LeakTracker<ClassA>::NumLiveInstances()); | 43 EXPECT_EQ(1, base::LeakTracker<ClassA>::NumLiveInstances()); |
45 EXPECT_EQ(0, base::LeakTracker<ClassB>::NumLiveInstances()); | 44 EXPECT_EQ(0, base::LeakTracker<ClassB>::NumLiveInstances()); |
46 | 45 |
47 ClassB b1; | 46 ClassB b1; |
48 ClassB b2; | 47 ClassB b2; |
49 | 48 |
50 EXPECT_EQ(1, base::LeakTracker<ClassA>::NumLiveInstances()); | 49 EXPECT_EQ(1, base::LeakTracker<ClassA>::NumLiveInstances()); |
51 EXPECT_EQ(2, base::LeakTracker<ClassB>::NumLiveInstances()); | 50 EXPECT_EQ(2, base::LeakTracker<ClassB>::NumLiveInstances()); |
52 | 51 |
53 scoped_ptr<ClassA> a2(new ClassA); | 52 scoped_ptr<ClassA> a2(new ClassA); |
54 | 53 |
55 EXPECT_EQ(2, base::LeakTracker<ClassA>::NumLiveInstances()); | 54 EXPECT_EQ(2, base::LeakTracker<ClassA>::NumLiveInstances()); |
56 EXPECT_EQ(2, base::LeakTracker<ClassB>::NumLiveInstances()); | 55 EXPECT_EQ(2, base::LeakTracker<ClassB>::NumLiveInstances()); |
57 | 56 |
58 a2.reset(); | 57 a2.reset(); |
59 | 58 |
60 EXPECT_EQ(1, base::LeakTracker<ClassA>::NumLiveInstances()); | 59 EXPECT_EQ(1, base::LeakTracker<ClassA>::NumLiveInstances()); |
61 EXPECT_EQ(2, base::LeakTracker<ClassB>::NumLiveInstances()); | 60 EXPECT_EQ(2, base::LeakTracker<ClassB>::NumLiveInstances()); |
62 } | 61 } |
63 | 62 |
64 EXPECT_EQ(0, base::LeakTracker<ClassA>::NumLiveInstances()); | 63 EXPECT_EQ(0, base::LeakTracker<ClassA>::NumLiveInstances()); |
65 EXPECT_EQ(0, base::LeakTracker<ClassB>::NumLiveInstances()); | 64 EXPECT_EQ(0, base::LeakTracker<ClassB>::NumLiveInstances()); |
66 } | 65 } |
67 | 66 |
68 // Try some orderings of create/remove to hit different cases in the linked-list | 67 // Try some orderings of create/remove to hit different cases in the linked-list |
69 // assembly. | 68 // assembly. |
70 TEST(LeakTrackerTest, DebugMode_LinkedList) { | 69 TEST(LeakTrackerTest, LinkedList) { |
71 EXPECT_EQ(0, base::LeakTracker<ClassB>::NumLiveInstances()); | 70 EXPECT_EQ(0, base::LeakTracker<ClassB>::NumLiveInstances()); |
72 | 71 |
73 scoped_ptr<ClassA> a1(new ClassA); | 72 scoped_ptr<ClassA> a1(new ClassA); |
74 scoped_ptr<ClassA> a2(new ClassA); | 73 scoped_ptr<ClassA> a2(new ClassA); |
75 scoped_ptr<ClassA> a3(new ClassA); | 74 scoped_ptr<ClassA> a3(new ClassA); |
76 scoped_ptr<ClassA> a4(new ClassA); | 75 scoped_ptr<ClassA> a4(new ClassA); |
77 | 76 |
78 EXPECT_EQ(4, base::LeakTracker<ClassA>::NumLiveInstances()); | 77 EXPECT_EQ(4, base::LeakTracker<ClassA>::NumLiveInstances()); |
79 | 78 |
80 // Remove the head of the list (a1). | 79 // Remove the head of the list (a1). |
(...skipping 10 matching lines...) Expand all Loading... |
91 | 90 |
92 a2.reset(); | 91 a2.reset(); |
93 a3.reset(); | 92 a3.reset(); |
94 | 93 |
95 EXPECT_EQ(1, base::LeakTracker<ClassA>::NumLiveInstances()); | 94 EXPECT_EQ(1, base::LeakTracker<ClassA>::NumLiveInstances()); |
96 | 95 |
97 a5.reset(); | 96 a5.reset(); |
98 EXPECT_EQ(0, base::LeakTracker<ClassA>::NumLiveInstances()); | 97 EXPECT_EQ(0, base::LeakTracker<ClassA>::NumLiveInstances()); |
99 } | 98 } |
100 | 99 |
101 TEST(LeakTrackerTest, DebugMode_NoOpCheckForLeaks) { | 100 TEST(LeakTrackerTest, NoOpCheckForLeaks) { |
102 // There are no live instances of ClassA, so this should do nothing. | 101 // There are no live instances of ClassA, so this should do nothing. |
103 base::LeakTracker<ClassA>::CheckForLeaks(); | 102 base::LeakTracker<ClassA>::CheckForLeaks(); |
104 } | 103 } |
105 | 104 |
106 #endif // NDEBUG | 105 #endif // ENABLE_LEAK_TRACKER |
107 | 106 |
108 } // namespace | 107 } // namespace |
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