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juce_OwnedArray.cpp
1/*
2 ==============================================================================
3
4 This file is part of the JUCE library.
5 Copyright (c) 2022 - Raw Material Software Limited
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 static struct OwnedArrayTest : public UnitTest
29{
30 struct Base
31 {
32 Base() = default;
33 virtual ~Base() = default;
34
35 JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (Base)
36 };
37
38 struct Derived final : public Base
39 {
40 Derived() = default;
41
42 JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (Derived)
43 };
44
45 struct DestructorObj
46 {
47 DestructorObj (OwnedArrayTest& p,
48 OwnedArray<DestructorObj>& arr)
49 : parent (p), objectArray (arr)
50 {}
51
52 ~DestructorObj()
53 {
54 data = 0;
55
56 for (auto* o : objectArray)
57 {
58 parent.expect (o != nullptr);
59 parent.expect (o != this);
60
61 if (o != nullptr)
62 parent.expectEquals (o->data, 956);
63 }
64 }
65
66 OwnedArrayTest& parent;
67 OwnedArray<DestructorObj>& objectArray;
68 int data = 956;
69
70 JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (DestructorObj)
71 };
72
73 OwnedArrayTest()
74 : UnitTest ("OwnedArray", UnitTestCategories::containers)
75 {}
76
77 void runTest() override
78 {
79 beginTest ("After converting move construction, ownership is transferred");
80 {
81 OwnedArray<Derived> derived { new Derived{}, new Derived{}, new Derived{} };
82
83 OwnedArray<Base> base { std::move (derived) };
84
85 expectEquals (base.size(), 3);
86 expectEquals (derived.size(), 0);
87 }
88
89 beginTest ("After converting move assignment, ownership is transferred");
90 {
91 OwnedArray<Base> base;
92
93 base = OwnedArray<Derived> { new Derived{}, new Derived{}, new Derived{} };
94
95 expectEquals (base.size(), 3);
96 }
97
98 beginTest ("Iterate in destructor");
99 {
100 {
101 OwnedArray<DestructorObj> arr;
102
103 for (int i = 0; i < 2; ++i)
104 arr.add (new DestructorObj (*this, arr));
105 }
106
107 OwnedArray<DestructorObj> arr;
108
109 for (int i = 0; i < 1025; ++i)
110 arr.add (new DestructorObj (*this, arr));
111
112 while (! arr.isEmpty())
113 arr.remove (0);
114
115 for (int i = 0; i < 1025; ++i)
116 arr.add (new DestructorObj (*this, arr));
117
118 arr.removeRange (1, arr.size() - 3);
119
120 for (int i = 0; i < 1025; ++i)
121 arr.add (new DestructorObj (*this, arr));
122
123 arr.set (500, new DestructorObj (*this, arr));
124 }
125 }
126} ownedArrayTest;
127
128#endif
129
130}