tests/misc/dynamiclib.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/misc/dynamiclib.cpp
   3 // Purpose:     Test wxDynamicLibrary
   4 // Author:      Francesco Montorsi (extracted from console sample)
   5 // Created:     2010-06-13
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2010 wxWidgets team
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 // ----------------------------------------------------------------------------
  11 // headers
  12 // ----------------------------------------------------------------------------
  13
  14 #include "testprec.h"
  15
  16 #ifdef __BORLANDC__
  17 #   pragma hdrstop
  18 #endif
  19
  20 #include "wx/dynlib.h"
  21
  22 // ----------------------------------------------------------------------------
  23 // test class
  24 // ----------------------------------------------------------------------------
  25
  26 class DynamicLibraryTestCase : public CppUnit::TestCase
  27 {
  28 public:
  29     DynamicLibraryTestCase() { }
  30
  31 private:
  32     CPPUNIT_TEST_SUITE( DynamicLibraryTestCase );
  33         CPPUNIT_TEST( Load );
  34     CPPUNIT_TEST_SUITE_END();
  35
  36     void Load();
  37
  38     DECLARE_NO_COPY_CLASS(DynamicLibraryTestCase)
  39 };
  40
  41 // register in the unnamed registry so that these tests are run by default
  42 CPPUNIT_TEST_SUITE_REGISTRATION( DynamicLibraryTestCase );
  43
  44 // also include in it's own registry so that these tests can be run alone
  45 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( DynamicLibraryTestCase, "DynamicLibraryTestCase" );
  46
  47 void DynamicLibraryTestCase::Load()
  48 {
  49 #if defined(__WXMSW__)
  50     static const wxChar *LIB_NAME = wxT("kernel32.dll");
  51     static const wxChar *FUNC_NAME = wxT("lstrlenA");
  52 #elif defined(__UNIX__)
  53     // weird: using just libc.so does *not* work!
  54     static const wxChar *LIB_NAME = wxT("/lib/libc.so.6");
  55     static const wxChar *FUNC_NAME = wxT("strlen");
  56 #else
  57     #error "don't know how to test wxDllLoader on this platform"
  58 #endif
  59
  60     wxDynamicLibrary lib(LIB_NAME);
  61     CPPUNIT_ASSERT( lib.IsLoaded() );
  62
  63     typedef int (wxSTDCALL *wxStrlenType)(const char *);
  64     wxStrlenType pfnStrlen = (wxStrlenType)lib.GetSymbol(FUNC_NAME);
  65
  66     wxString errMsg = wxString::Format("ERROR: function '%s' wasn't found in '%s'.\n",
  67                                        FUNC_NAME, LIB_NAME);
  68     CPPUNIT_ASSERT_MESSAGE( errMsg.ToStdString(), pfnStrlen );
  69
  70     // Call the function dynamically loaded
  71     CPPUNIT_ASSERT( pfnStrlen("foo") == 3 );
  72
  73 #ifdef __WXMSW__
  74     static const wxChar *FUNC_NAME_AW = wxT("lstrlen");
  75
  76     typedef int (wxSTDCALL *wxStrlenTypeAorW)(const wxChar *);
  77     wxStrlenTypeAorW
  78         pfnStrlenAorW = (wxStrlenTypeAorW)lib.GetSymbolAorW(FUNC_NAME_AW);
  79
  80     wxString errMsg2 = wxString::Format("ERROR: function '%s' wasn't found in '%s'.\n",
  81                                        FUNC_NAME_AW, LIB_NAME);
  82     CPPUNIT_ASSERT_MESSAGE( errMsg2.ToStdString(), pfnStrlenAorW );
  83
  84     CPPUNIT_ASSERT( pfnStrlenAorW(wxT("foobar")) == 6 );
  85 #endif // __WXMSW__
  86 }