OpenShot Library | libopenshot-audio  0.1.9
juce_CachedValue.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  By using JUCE, you agree to the terms of both the JUCE 5 End-User License
11  Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
12  27th April 2017).
13 
14  End User License Agreement: www.juce.com/juce-5-licence
15  Privacy Policy: www.juce.com/juce-5-privacy-policy
16 
17  Or: You may also use this code under the terms of the GPL v3 (see
18  www.gnu.org/licenses).
19 
20  JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
21  EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
22  DISCLAIMED.
23 
24  ==============================================================================
25 */
26 
27 namespace juce
28 {
29 
30 #if JUCE_UNIT_TESTS
31 
32 class CachedValueTests : public UnitTest
33 {
34 public:
35  CachedValueTests() : UnitTest ("CachedValues", "Values") {}
36 
37  void runTest() override
38  {
39  beginTest ("default constructor");
40  {
41  CachedValue<String> cv;
42  expect (cv.isUsingDefault());
43  expect (cv.get() == String());
44  }
45 
46  beginTest ("without default value");
47  {
48  ValueTree t ("root");
49  t.setProperty ("testkey", "testvalue", nullptr);
50 
51  CachedValue<String> cv (t, "testkey", nullptr);
52 
53  expect (! cv.isUsingDefault());
54  expect (cv.get() == "testvalue");
55 
56  cv.resetToDefault();
57 
58  expect (cv.isUsingDefault());
59  expect (cv.get() == String());
60  }
61 
62  beginTest ("with default value");
63  {
64  ValueTree t ("root");
65  t.setProperty ("testkey", "testvalue", nullptr);
66 
67  CachedValue<String> cv (t, "testkey", nullptr, "defaultvalue");
68 
69  expect (! cv.isUsingDefault());
70  expect (cv.get() == "testvalue");
71 
72  cv.resetToDefault();
73 
74  expect (cv.isUsingDefault());
75  expect (cv.get() == "defaultvalue");
76  }
77 
78  beginTest ("with default value (int)");
79  {
80  ValueTree t ("root");
81  t.setProperty ("testkey", 23, nullptr);
82 
83  CachedValue<int> cv (t, "testkey", nullptr, 34);
84 
85  expect (! cv.isUsingDefault());
86  expect (cv == 23);
87  expectEquals (cv.get(), 23);
88 
89  cv.resetToDefault();
90 
91  expect (cv.isUsingDefault());
92  expect (cv == 34);
93  }
94 
95  beginTest ("with void value");
96  {
97  ValueTree t ("root");
98  t.setProperty ("testkey", var(), nullptr);
99 
100  CachedValue<String> cv (t, "testkey", nullptr, "defaultvalue");
101 
102  expect (! cv.isUsingDefault());
103  expect (cv == "");
104  expectEquals (cv.get(), String());
105  }
106 
107  beginTest ("with non-existent value");
108  {
109  ValueTree t ("root");
110 
111  CachedValue<String> cv (t, "testkey", nullptr, "defaultvalue");
112 
113  expect (cv.isUsingDefault());
114  expect (cv == "defaultvalue");
115  expect (cv.get() == "defaultvalue");
116  }
117 
118  beginTest ("with value changing");
119  {
120  ValueTree t ("root");
121  t.setProperty ("testkey", "oldvalue", nullptr);
122 
123  CachedValue<String> cv (t, "testkey", nullptr, "defaultvalue");
124  expect (cv == "oldvalue");
125 
126  t.setProperty ("testkey", "newvalue", nullptr);
127  expect (cv != "oldvalue");
128  expect (cv == "newvalue");
129  }
130 
131  beginTest ("set value");
132  {
133  ValueTree t ("root");
134  t.setProperty ("testkey", 23, nullptr);
135 
136  CachedValue<int> cv (t, "testkey", nullptr, 45);
137  cv = 34;
138 
139  expectEquals ((int) t["testkey"], 34);
140 
141  cv.resetToDefault();
142  expect (cv == 45);
143  expectEquals (cv.get(), 45);
144 
145  expect (t["testkey"] == var());
146  }
147  }
148 };
149 
150 static CachedValueTests cachedValueTests;
151 
152 #endif
153 
154 } // namespace juce