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 // Copyright:   (c) 2010 wxWidgets team
   7 ///////////////////////////////////////////////////////////////////////////////
   8
   9 // ----------------------------------------------------------------------------
  10 // headers
  11 // ----------------------------------------------------------------------------
  12
  13 #include "testprec.h"
  14
  15 #ifdef __BORLANDC__
  16 #   pragma hdrstop
  17 #endif
  18
  19 #include "wx/dynlib.h"
  20
  21 #ifdef __UNIX__
  22     #include "wx/filename.h"
  23     #include "wx/log.h"
  24 #endif
  25
  26 // ----------------------------------------------------------------------------
  27 // test class
  28 // ----------------------------------------------------------------------------
  29
  30 class DynamicLibraryTestCase : public CppUnit::TestCase
  31 {
  32 public:
  33     DynamicLibraryTestCase() { }
  34
  35 private:
  36     CPPUNIT_TEST_SUITE( DynamicLibraryTestCase );
  37         CPPUNIT_TEST( Load );
  38     CPPUNIT_TEST_SUITE_END();
  39
  40     void Load();
  41
  42     DECLARE_NO_COPY_CLASS(DynamicLibraryTestCase)
  43 };
  44
  45 // register in the unnamed registry so that these tests are run by default
  46 CPPUNIT_TEST_SUITE_REGISTRATION( DynamicLibraryTestCase );
  47
  48 // also include in its own registry so that these tests can be run alone
  49 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( DynamicLibraryTestCase, "DynamicLibraryTestCase" );
  50
  51 void DynamicLibraryTestCase::Load()
  52 {
  53 #if defined(__WINDOWS__)
  54     static const wxChar *LIB_NAME = wxT("kernel32.dll");
  55     static const wxChar *FUNC_NAME = wxT("lstrlenA");
  56 #elif defined(__UNIX__)
  57 #ifdef __DARWIN__
  58     static const wxChar *LIB_NAME = wxT("/usr/lib/libc.dylib");
  59 #else
  60     // weird: using just libc.so does *not* work!
  61     static const wxChar *LIB_NAME = wxT("/lib/libc.so.6");
  62 #endif
  63     static const wxChar *FUNC_NAME = wxT("strlen");
  64
  65     if ( !wxFileName::Exists(LIB_NAME) )
  66     {
  67         wxLogWarning("Shared library \"%s\" doesn't exist, "
  68                      "skipping DynamicLibraryTestCase::Load() test.");
  69         return;
  70     }
  71 #else
  72     #error "don't know how to test wxDllLoader on this platform"
  73 #endif
  74
  75     wxDynamicLibrary lib(LIB_NAME);
  76     CPPUNIT_ASSERT( lib.IsLoaded() );
  77
  78     typedef int (wxSTDCALL *wxStrlenType)(const char *);
  79     wxStrlenType pfnStrlen = (wxStrlenType)lib.GetSymbol(FUNC_NAME);
  80
  81     wxString errMsg = wxString::Format("ERROR: function '%s' wasn't found in '%s'.\n",
  82                                        FUNC_NAME, LIB_NAME);
  83     CPPUNIT_ASSERT_MESSAGE( errMsg.ToStdString(), pfnStrlen );
  84
  85     // Call the function dynamically loaded
  86     CPPUNIT_ASSERT( pfnStrlen("foo") == 3 );
  87
  88 #ifdef __WINDOWS__
  89     static const wxChar *FUNC_NAME_AW = wxT("lstrlen");
  90
  91     typedef int (wxSTDCALL *wxStrlenTypeAorW)(const wxChar *);
  92     wxStrlenTypeAorW
  93         pfnStrlenAorW = (wxStrlenTypeAorW)lib.GetSymbolAorW(FUNC_NAME_AW);
  94
  95     wxString errMsg2 = wxString::Format("ERROR: function '%s' wasn't found in '%s'.\n",
  96                                        FUNC_NAME_AW, LIB_NAME);
  97     CPPUNIT_ASSERT_MESSAGE( errMsg2.ToStdString(), pfnStrlenAorW );
  98
  99     CPPUNIT_ASSERT( pfnStrlenAorW(wxT("foobar")) == 6 );
 100 #endif // __WINDOWS__
 101 }