tests/misc/metatest.cpp

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