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juce_OwnedArray.cpp
1/*
2 ==============================================================================
3
4 This file is part of the JUCE library.
5 Copyright (c) 2017 - 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 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 : 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 parent.expectEquals (o->data, 956);
61 }
62 }
63
64 OwnedArrayTest& parent;
65 OwnedArray<DestructorObj>& objectArray;
66 int data = 956;
67
68 JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (DestructorObj)
69 };
70
71 OwnedArrayTest()
72 : UnitTest ("OwnedArray", UnitTestCategories::containers)
73 {}
74
75 void runTest() override
76 {
77 beginTest ("After converting move construction, ownership is transferred");
78 {
79 OwnedArray<Derived> derived { new Derived{}, new Derived{}, new Derived{} };
80
81 OwnedArray<Base> base { std::move (derived) };
82
83 expectEquals (base.size(), 3);
84 expectEquals (derived.size(), 0);
85 }
86
87 beginTest ("After converting move assignment, ownership is transferred");
88 {
89 OwnedArray<Base> base;
90
91 base = OwnedArray<Derived> { new Derived{}, new Derived{}, new Derived{} };
92
93 expectEquals (base.size(), 3);
94 }
95
96 beginTest ("Iterate in destructor");
97 {
98 {
99 OwnedArray<DestructorObj> arr;
100
101 for (int i = 0; i < 2; ++i)
102 arr.add (new DestructorObj (*this, arr));
103 }
104
105 OwnedArray<DestructorObj> arr;
106
107 for (int i = 0; i < 1025; ++i)
108 arr.add (new DestructorObj (*this, arr));
109
110 while (! arr.isEmpty())
111 arr.remove (0);
112
113 for (int i = 0; i < 1025; ++i)
114 arr.add (new DestructorObj (*this, arr));
115
116 arr.removeRange (1, arr.size() - 3);
117
118 for (int i = 0; i < 1025; ++i)
119 arr.add (new DestructorObj (*this, arr));
120
121 arr.set (500, new DestructorObj (*this, arr));
122 }
123 }
124} ownedArrayTest;
125
126#endif
127
128}