OpenShot Library | libopenshot-audio  0.2.0
juce_ReferenceCountedArray.cpp
1 /*
2  ==============================================================================
3 
4  This file is part of the JUCE library.
5  Copyright (c) 2018 - ROLI Ltd.
6 
7  JUCE is an open source library subject to commercial or open-source
8  licensing.
9 
10  The code included in this file is provided under the terms of the ISC license
11  http://www.isc.org/downloads/software-support-policy/isc-license. Permission
12  To use, copy, modify, and/or distribute this software for any purpose with or
13  without fee is hereby granted provided that the above copyright notice and
14  this permission notice appear in all copies.
15 
16  JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
17  EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
18  DISCLAIMED.
19 
20  ==============================================================================
21 */
22 
23 namespace juce
24 {
25 
26 #if JUCE_UNIT_TESTS
27 
28 class ReferenceCountedArrayTests : public UnitTest
29 {
30 public:
31  ReferenceCountedArrayTests() : UnitTest ("ReferenceCountedArray", "Containers") {}
32 
33  //==============================================================================
34  void runTest() override
35  {
36  beginTest ("Add derived objects");
37  {
38  ReferenceCountedArray<TestDerivedObj> derivedArray;
39  derivedArray.add (static_cast<TestDerivedObj*> (new TestBaseObj()));
40  expectEquals (derivedArray.size(), 1);
41  expectEquals (derivedArray.getObjectPointer (0)->getReferenceCount(), 1);
42  expectEquals (derivedArray[0]->getReferenceCount(), 2);
43 
44  for (auto o : derivedArray)
45  expectEquals (o->getReferenceCount(), 1);
46 
47  ReferenceCountedArray<TestBaseObj> baseArray;
48  baseArray.addArray (derivedArray);
49 
50  for (auto o : baseArray)
51  expectEquals (o->getReferenceCount(), 2);
52 
53  derivedArray.clearQuick();
54  baseArray.clearQuick();
55 
56  auto* baseObject = new TestBaseObj();
57  TestBaseObj::Ptr baseObjectPtr = baseObject;
58  expectEquals (baseObject->getReferenceCount(), 1);
59 
60  auto* derivedObject = new TestDerivedObj();
61  TestDerivedObj::Ptr derivedObjectPtr = derivedObject;
62  expectEquals (derivedObject->getReferenceCount(), 1);
63 
64  baseArray.add (baseObject);
65  baseArray.add (derivedObject);
66 
67  for (auto o : baseArray)
68  expectEquals (o->getReferenceCount(), 2);
69 
70  expectEquals (baseObject->getReferenceCount(), 2);
71  expectEquals (derivedObject->getReferenceCount(), 2);
72 
73  derivedArray.add (derivedObject);
74 
75  for (auto o : derivedArray)
76  expectEquals (o->getReferenceCount(), 3);
77 
78  derivedArray.clearQuick();
79  baseArray.clearQuick();
80 
81  expectEquals (baseObject->getReferenceCount(), 1);
82  expectEquals (derivedObject->getReferenceCount(), 1);
83 
84  baseArray.add (baseObjectPtr);
85 
86  #if JUCE_STRICT_REFCOUNTEDPOINTER
87  baseArray.add (derivedObjectPtr);
88  #else
89  baseArray.add (derivedObjectPtr.get());
90  #endif
91 
92  for (auto o : baseArray)
93  expectEquals (o->getReferenceCount(), 2);
94 
95  derivedArray.add (derivedObjectPtr);
96 
97  for (auto o : derivedArray)
98  expectEquals (o->getReferenceCount(), 3);
99  }
100  }
101 
102 private:
103  struct TestBaseObj : public ReferenceCountedObject
104  {
105  using Ptr = ReferenceCountedObjectPtr<TestBaseObj>;
106 
107  TestBaseObj() = default;
108  };
109 
110  struct TestDerivedObj : public TestBaseObj
111  {
112  using Ptr = ReferenceCountedObjectPtr<TestDerivedObj>;
113 
114  TestDerivedObj() = default;
115  };
116 };
117 
118 static ReferenceCountedArrayTests referenceCountedArrayTests;
119 
120 #endif
121 
122 } // namespace juce