henrike@webrtc.org | f7795df | 2014-05-13 18:00:26 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #include "webrtc/base/gunit.h" |
| 12 | #include "webrtc/base/referencecountedsingletonfactory.h" |
| 13 | |
| 14 | namespace rtc { |
| 15 | |
| 16 | class MyExistenceWatcher { |
| 17 | public: |
| 18 | MyExistenceWatcher() { create_called_ = true; } |
| 19 | ~MyExistenceWatcher() { delete_called_ = true; } |
| 20 | |
| 21 | static bool create_called_; |
| 22 | static bool delete_called_; |
| 23 | }; |
| 24 | |
| 25 | bool MyExistenceWatcher::create_called_ = false; |
| 26 | bool MyExistenceWatcher::delete_called_ = false; |
| 27 | |
| 28 | class TestReferenceCountedSingletonFactory : |
| 29 | public ReferenceCountedSingletonFactory<MyExistenceWatcher> { |
| 30 | protected: |
| 31 | virtual bool SetupInstance() { |
| 32 | instance_.reset(new MyExistenceWatcher()); |
| 33 | return true; |
| 34 | } |
| 35 | |
| 36 | virtual void CleanupInstance() { |
| 37 | instance_.reset(); |
| 38 | } |
| 39 | }; |
| 40 | |
| 41 | static void DoCreateAndGoOutOfScope( |
| 42 | ReferenceCountedSingletonFactory<MyExistenceWatcher> *factory) { |
| 43 | rcsf_ptr<MyExistenceWatcher> ptr(factory); |
| 44 | ptr.get(); |
| 45 | // and now ptr should go out of scope. |
| 46 | } |
| 47 | |
| 48 | TEST(ReferenceCountedSingletonFactory, ZeroReferenceCountCausesDeletion) { |
| 49 | TestReferenceCountedSingletonFactory factory; |
| 50 | MyExistenceWatcher::delete_called_ = false; |
| 51 | DoCreateAndGoOutOfScope(&factory); |
| 52 | EXPECT_TRUE(MyExistenceWatcher::delete_called_); |
| 53 | } |
| 54 | |
| 55 | TEST(ReferenceCountedSingletonFactory, NonZeroReferenceCountDoesNotDelete) { |
| 56 | TestReferenceCountedSingletonFactory factory; |
| 57 | rcsf_ptr<MyExistenceWatcher> ptr(&factory); |
| 58 | ptr.get(); |
| 59 | MyExistenceWatcher::delete_called_ = false; |
| 60 | DoCreateAndGoOutOfScope(&factory); |
| 61 | EXPECT_FALSE(MyExistenceWatcher::delete_called_); |
| 62 | } |
| 63 | |
| 64 | TEST(ReferenceCountedSingletonFactory, ReturnedPointersReferToSameThing) { |
| 65 | TestReferenceCountedSingletonFactory factory; |
| 66 | rcsf_ptr<MyExistenceWatcher> one(&factory), two(&factory); |
| 67 | |
| 68 | EXPECT_EQ(one.get(), two.get()); |
| 69 | } |
| 70 | |
| 71 | TEST(ReferenceCountedSingletonFactory, Release) { |
| 72 | TestReferenceCountedSingletonFactory factory; |
| 73 | |
| 74 | rcsf_ptr<MyExistenceWatcher> one(&factory); |
| 75 | one.get(); |
| 76 | |
| 77 | MyExistenceWatcher::delete_called_ = false; |
| 78 | one.release(); |
| 79 | EXPECT_TRUE(MyExistenceWatcher::delete_called_); |
| 80 | } |
| 81 | |
| 82 | TEST(ReferenceCountedSingletonFactory, GetWithoutRelease) { |
| 83 | TestReferenceCountedSingletonFactory factory; |
| 84 | rcsf_ptr<MyExistenceWatcher> one(&factory); |
| 85 | one.get(); |
| 86 | |
| 87 | MyExistenceWatcher::create_called_ = false; |
| 88 | one.get(); |
| 89 | EXPECT_FALSE(MyExistenceWatcher::create_called_); |
| 90 | } |
| 91 | |
| 92 | TEST(ReferenceCountedSingletonFactory, GetAfterRelease) { |
| 93 | TestReferenceCountedSingletonFactory factory; |
| 94 | rcsf_ptr<MyExistenceWatcher> one(&factory); |
| 95 | |
| 96 | MyExistenceWatcher::create_called_ = false; |
| 97 | one.release(); |
| 98 | one.get(); |
| 99 | EXPECT_TRUE(MyExistenceWatcher::create_called_); |
| 100 | } |
| 101 | |
| 102 | TEST(ReferenceCountedSingletonFactory, MultipleReleases) { |
| 103 | TestReferenceCountedSingletonFactory factory; |
| 104 | rcsf_ptr<MyExistenceWatcher> one(&factory), two(&factory); |
| 105 | |
| 106 | MyExistenceWatcher::create_called_ = false; |
| 107 | MyExistenceWatcher::delete_called_ = false; |
| 108 | one.release(); |
| 109 | EXPECT_FALSE(MyExistenceWatcher::delete_called_); |
| 110 | one.release(); |
| 111 | EXPECT_FALSE(MyExistenceWatcher::delete_called_); |
| 112 | one.release(); |
| 113 | EXPECT_FALSE(MyExistenceWatcher::delete_called_); |
| 114 | one.get(); |
| 115 | EXPECT_TRUE(MyExistenceWatcher::create_called_); |
| 116 | } |
| 117 | |
| 118 | TEST(ReferenceCountedSingletonFactory, Existentialism) { |
| 119 | TestReferenceCountedSingletonFactory factory; |
| 120 | |
| 121 | rcsf_ptr<MyExistenceWatcher> one(&factory); |
| 122 | |
| 123 | MyExistenceWatcher::create_called_ = false; |
| 124 | MyExistenceWatcher::delete_called_ = false; |
| 125 | |
| 126 | one.get(); |
| 127 | EXPECT_TRUE(MyExistenceWatcher::create_called_); |
| 128 | one.release(); |
| 129 | EXPECT_TRUE(MyExistenceWatcher::delete_called_); |
| 130 | } |
| 131 | |
| 132 | } // namespace rtc |