1  /*
2   Copyright 2010 Larry Gritz and the other authors and contributors.
3   All Rights Reserved.
4 
5   Redistribution and use in source and binary forms, with or without
6   modification, are permitted provided that the following conditions are
7   met:
8   * Redistributions of source code must retain the above copyright
9   notice, this list of conditions and the following disclaimer.
10   * Redistributions in binary form must reproduce the above copyright
11   notice, this list of conditions and the following disclaimer in the
12   documentation and/or other materials provided with the distribution.
13   * Neither the name of the software's owners nor the names of its
14   contributors may be used to endorse or promote products derived from
15   this software without specific prior written permission.
16   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 
28   (This is the Modified BSD License)
29 */
30 
31 #ifndef OPENCOLORIO_UNITTEST_H
32 #define OPENCOLORIO_UNITTEST_H
33 
34 #include <iostream>
35 #include <cmath>
36 #include <vector>
37 #include <string>
38 
39 extern int unit_test_failures;
40 
41 void unittest_fail();
42 
43 typedef void (*OIIOTestFunc)();
44 
45 struct OIIOTest
46 {
OIIOTestOIIOTest47     OIIOTest(std::string testgroup, std::string testname, OIIOTestFunc test) :
48         group(testgroup), name(testname), function(test) { };
49     std::string group, name;
50     OIIOTestFunc function;
51 };
52 
53 typedef std::vector<OIIOTest*> UnitTests;
54 
55 UnitTests& GetUnitTests();
56 
57 struct AddTest { AddTest(OIIOTest* test); };
58 
59 /// OIIO_CHECK_* macros checks if the conditions is met, and if not,
60 /// prints an error message indicating the module and line where the
61 /// error occurred, but does NOT abort.  This is helpful for unit tests
62 /// where we do not want one failure.
63 #define OIIO_CHECK_ASSERT(x)                                            \
64     ((x) ? ((void)0)                                                    \
65          : ((std::cout << __FILE__ << ":" << __LINE__ << ":\n"          \
66                        << "FAILED: " << #x << "\n"),                    \
67             (void)++unit_test_failures))
68 
69 #define OIIO_CHECK_EQUAL(x,y)                                           \
70     (((x) == (y)) ? ((void)0)                                           \
71          : ((std::cout << __FILE__ << ":" << __LINE__ << ":\n"          \
72              << "FAILED: " << #x << " == " << #y << "\n"                \
73              << "\tvalues were '" << (x) << "' and '" << (y) << "'\n"), \
74             (void)++unit_test_failures))
75 
76 #define OIIO_CHECK_NE(x,y)                                              \
77     (((x) != (y)) ? ((void)0)                                           \
78          : ((std::cout << __FILE__ << ":" << __LINE__ << ":\n"          \
79              << "FAILED: " << #x << " != " << #y << "\n"                \
80              << "\tvalues were '" << (x) << "' and '" << (y) << "'\n"), \
81             (void)++unit_test_failures))
82 
83 #define OIIO_CHECK_LT(x,y)                                              \
84     (((x) < (y)) ? ((void)0)                                            \
85          : ((std::cout << __FILE__ << ":" << __LINE__ << ":\n"          \
86              << "FAILED: " << #x << " < " << #y << "\n"                 \
87              << "\tvalues were '" << (x) << "' and '" << (y) << "'\n"), \
88             (void)++unit_test_failures))
89 
90 #define OIIO_CHECK_GT(x,y)                                              \
91     (((x) > (y)) ? ((void)0)                                            \
92          : ((std::cout << __FILE__ << ":" << __LINE__ << ":\n"          \
93              << "FAILED: " << #x << " > " << #y << "\n"                 \
94              << "\tvalues were '" << (x) << "' and '" << (y) << "'\n"), \
95             (void)++unit_test_failures))
96 
97 #define OIIO_CHECK_LE(x,y)                                              \
98     (((x) <= (y)) ? ((void)0)                                           \
99          : ((std::cout << __FILE__ << ":" << __LINE__ << ":\n"          \
100              << "FAILED: " << #x << " <= " << #y << "\n"                \
101              << "\tvalues were '" << (x) << "' and '" << (y) << "'\n"), \
102             (void)++unit_test_failures))
103 
104 #define OIIO_CHECK_GE(x,y)                                              \
105     (((x) >= (y)) ? ((void)0)                                           \
106          : ((std::cout << __FILE__ << ":" << __LINE__ << ":\n"          \
107              << "FAILED: " << #x << " >= " << #y << "\n"                \
108              << "\tvalues were '" << (x) << "' and '" << (y) << "'\n"), \
109             (void)++unit_test_failures))
110 
111 #define OIIO_CHECK_CLOSE(x,y,tol)                                       \
112     ((std::abs((x) - (y)) < (tol)) ? ((void)0)                          \
113          : ((std::cout << __FILE__ << ":" << __LINE__ << ":\n"          \
114              << "FAILED: abs(" << #x << " - " << #y << ") < " << #tol << "\n" \
115              << "\tvalues were '" << (x) << "', '" << (y) << "' and '" << (tol) << "'\n"), \
116             (void)++unit_test_failures))
117 
118 #define OIIO_CHECK_THROW(S, E)                                          \
119     try { S; throw "throwanything"; } catch( E const& ) { } catch (...) { \
120         std::cout << __FILE__ << ":" << __LINE__ << ":\n"               \
121         << "FAILED: " << #E << " is expected to be thrown\n";           \
122         ++unit_test_failures; }
123 
124 #define OIIO_CHECK_NO_THROW(S)                                          \
125     try {                                                               \
126         S;                                                              \
127     } catch (OCIO_NAMESPACE::Exception & ex ) {                         \
128         std::cout << __FILE__ << ":" << __LINE__ << ":\n"               \
129             << "FAILED: exception thrown from " << #S << ": \""         \
130             << ex.what() << "\"\n";                                     \
131         ++unit_test_failures;                                           \
132     } catch (...) {                                                     \
133         std::cout << __FILE__ << ":" << __LINE__ << ":\n"               \
134         << "FAILED: exception thrown from " << #S <<"\n";               \
135         ++unit_test_failures; }
136 
137 #define OIIO_ADD_TEST(group, name)                                      \
138     static void oiiotest_##group##_##name();                            \
139     AddTest oiioaddtest_##group##_##name(new OIIOTest(#group, #name, oiiotest_##group##_##name)); \
140     static void oiiotest_##group##_##name()
141 
142 #define OIIO_TEST_SETUP() \
143     int unit_test_failures = 0
144 
145 #define OIIO_TEST_APP(app)                                              \
146     std::vector<OIIOTest*>& GetUnitTests() {                            \
147         static std::vector<OIIOTest*> oiio_unit_tests;                  \
148         return oiio_unit_tests; }                                       \
149     AddTest::AddTest(OIIOTest* test){GetUnitTests().push_back(test);};  \
150     OIIO_TEST_SETUP(); \
151     int main(int, char **) { std::cerr << "\n" << #app <<"\n\n";        \
152         for(size_t i = 0; i < GetUnitTests().size(); ++i) {             \
153             int _tmp = unit_test_failures; GetUnitTests()[i]->function(); \
154             std::cerr << "Test [" << GetUnitTests()[i]->group << "] [" << GetUnitTests()[i]->name << "] - "; \
155             std::cerr << (_tmp == unit_test_failures ? "PASSED" : "FAILED") << "\n"; } \
156         std::cerr << "\n" << unit_test_failures << " tests failed\n\n";   \
157         return unit_test_failures; }
158 
159 #endif /* OPENCOLORIO_UNITTEST_H */
160