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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: tests/misc/metatest.cpp | |
3 | // Purpose: Test template meta-programming constructs | |
4 | // Author: Jaakko Salli | |
5 | // Copyright: (c) the wxWidgets team | |
6 | // Licence: wxWindows licence | |
7 | /////////////////////////////////////////////////////////////////////////////// | |
8 | ||
9 | #include "testprec.h" | |
10 | ||
11 | #ifdef __BORLANDC__ | |
12 | # pragma hdrstop | |
13 | #endif | |
14 | ||
15 | #include "wx/object.h" | |
16 | #include "wx/utils.h" | |
17 | #include "wx/meta/pod.h" | |
18 | #include "wx/meta/movable.h" | |
19 | ||
20 | #ifndef wxNO_RTTI | |
21 | #include <typeinfo> | |
22 | #endif | |
23 | ||
24 | // ---------------------------------------------------------------------------- | |
25 | // test class | |
26 | // ---------------------------------------------------------------------------- | |
27 | ||
28 | class MetaProgrammingTestCase : public CppUnit::TestCase | |
29 | { | |
30 | public: | |
31 | MetaProgrammingTestCase() { } | |
32 | ||
33 | private: | |
34 | CPPUNIT_TEST_SUITE( MetaProgrammingTestCase ); | |
35 | CPPUNIT_TEST( IsPod ); | |
36 | CPPUNIT_TEST( IsMovable ); | |
37 | CPPUNIT_TEST( ImplicitConversion ); | |
38 | CPPUNIT_TEST( MinMax ); | |
39 | CPPUNIT_TEST_SUITE_END(); | |
40 | ||
41 | void IsPod(); | |
42 | void IsMovable(); | |
43 | void ImplicitConversion(); | |
44 | void MinMax(); | |
45 | ||
46 | DECLARE_NO_COPY_CLASS(MetaProgrammingTestCase) | |
47 | }; | |
48 | ||
49 | // register in the unnamed registry so that these tests are run by default | |
50 | CPPUNIT_TEST_SUITE_REGISTRATION( MetaProgrammingTestCase ); | |
51 | ||
52 | // also include in its own registry so that these tests can be run alone | |
53 | CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( MetaProgrammingTestCase, | |
54 | "MetaProgrammingTestCase" ); | |
55 | ||
56 | ||
57 | void MetaProgrammingTestCase::IsPod() | |
58 | { | |
59 | CPPUNIT_ASSERT(wxIsPod<bool>::value); | |
60 | CPPUNIT_ASSERT(wxIsPod<signed int>::value); | |
61 | CPPUNIT_ASSERT(wxIsPod<double>::value); | |
62 | #if !defined(__VISUALC__) || wxCHECK_VISUALC_VERSION(7) | |
63 | CPPUNIT_ASSERT(wxIsPod<wxObject*>::value); | |
64 | #endif | |
65 | CPPUNIT_ASSERT(!wxIsPod<wxObject>::value); | |
66 | } | |
67 | ||
68 | void MetaProgrammingTestCase::IsMovable() | |
69 | { | |
70 | CPPUNIT_ASSERT(wxIsMovable<bool>::value); | |
71 | CPPUNIT_ASSERT(wxIsMovable<signed int>::value); | |
72 | CPPUNIT_ASSERT(wxIsMovable<double>::value); | |
73 | #if !defined(__VISUALC__) || wxCHECK_VISUALC_VERSION(7) | |
74 | CPPUNIT_ASSERT(wxIsMovable<wxObject*>::value); | |
75 | #endif | |
76 | CPPUNIT_ASSERT(!wxIsMovable<wxObject>::value); | |
77 | } | |
78 | ||
79 | void MetaProgrammingTestCase::ImplicitConversion() | |
80 | { | |
81 | #ifndef wxNO_RTTI | |
82 | CPPUNIT_ASSERT(typeid(wxImplicitConversionType<char,int>::value) == typeid(int)); | |
83 | CPPUNIT_ASSERT(typeid(wxImplicitConversionType<int,unsigned>::value) == typeid(unsigned)); | |
84 | #ifdef wxLongLong_t | |
85 | CPPUNIT_ASSERT(typeid(wxImplicitConversionType<wxLongLong_t,float>::value) == typeid(float)); | |
86 | #endif | |
87 | #endif // !wxNO_RTTI | |
88 | } | |
89 | ||
90 | void MetaProgrammingTestCase::MinMax() | |
91 | { | |
92 | // test that wxMax(1.1,1) returns float, not long int | |
93 | float f = wxMax(1.1f, 1l); | |
94 | CPPUNIT_ASSERT_EQUAL( 1.1f, f); | |
95 | ||
96 | // test that comparing signed and unsigned correctly returns unsigned: this | |
97 | // may seem counterintuitive in this case but this is consistent with the | |
98 | // standard C conversions | |
99 | CPPUNIT_ASSERT_EQUAL( 1, wxMin(-1, 1u) ); | |
100 | ||
101 | CPPUNIT_ASSERT_EQUAL( -1., wxClip(-1.5, -1, 1) ); | |
102 | CPPUNIT_ASSERT_EQUAL( 0, wxClip(0, -1, 1) ); | |
103 | CPPUNIT_ASSERT_EQUAL( 1, wxClip(2l, -1, 1) ); | |
104 | } |