tests/misc/garbage.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/misc/garbage.cpp
   3 // Purpose:     test if loading garbage fails
   4 // Author:      Francesco Montorsi
   5 // Created:     2009-01-10
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2009 Francesco Montorsi
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 // ----------------------------------------------------------------------------
  11 // headers
  12 // ----------------------------------------------------------------------------
  13
  14 #include "testprec.h"
  15
  16 #ifdef __BORLANDC__
  17     #pragma hdrstop
  18 #endif
  19
  20 #include "wx/filename.h"
  21 #include "wx/image.h"
  22 #include "wx/animate.h"
  23 #include "wx/mstream.h"
  24 #include "wx/dynlib.h"
  25 #include "wx/mediactrl.h"
  26 #include "wx/html/htmlwin.h"
  27 #include "wx/xrc/xmlres.h"
  28
  29 #define GARBAGE_DATA_SIZE   1000000             // in bytes; ~ 1MB
  30
  31 // ----------------------------------------------------------------------------
  32 // test class
  33 // ----------------------------------------------------------------------------
  34
  35 class GarbageTestCase : public CppUnit::TestCase
  36 {
  37 public:
  38     GarbageTestCase() { }
  39
  40 private:
  41     CPPUNIT_TEST_SUITE( GarbageTestCase );
  42         CPPUNIT_TEST( LoadGarbage );
  43     CPPUNIT_TEST_SUITE_END();
  44
  45     void LoadGarbage();
  46     void DoLoadFile(const wxString& fullname);
  47     void DoLoadStream(wxInputStream& stream);
  48
  49     DECLARE_NO_COPY_CLASS(GarbageTestCase)
  50 };
  51
  52 // register in the unnamed registry so that these tests are run by default
  53 CPPUNIT_TEST_SUITE_REGISTRATION( GarbageTestCase );
  54
  55 // also include in it's own registry so that these tests can be run alone
  56 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( GarbageTestCase, "GarbageTestCase" );
  57
  58
  59 void GarbageTestCase::LoadGarbage()
  60 {
  61     srand(1234);
  62
  63     wxInitAllImageHandlers();
  64
  65     for (size_t size = 1; size < GARBAGE_DATA_SIZE; size *= size+1)
  66     {
  67         // first, generate some garbage data
  68         unsigned char *data = new unsigned char[size];
  69         for (size_t i = 0; i < size; i++)
  70             data[i] = rand();
  71
  72         // write it to a file
  73         wxString garbagename = wxFileName::CreateTempFileName("garbage");
  74         CPPUNIT_ASSERT( !garbagename.empty() );
  75
  76         wxFile garbage(garbagename, wxFile::write);
  77         CPPUNIT_ASSERT( garbage.IsOpened() );
  78
  79         CPPUNIT_ASSERT( garbage.Write(data, size) == size );
  80         garbage.Close();
  81
  82         // try to load it by name
  83         DoLoadFile(garbagename);
  84
  85         // try to load it from a wxInputStream
  86         wxMemoryInputStream stream(data, size);
  87         DoLoadStream(stream);
  88
  89         wxDELETEA(data);
  90     }
  91 }
  92
  93 void GarbageTestCase::DoLoadFile(const wxString& fullname)
  94 {
  95     // test wxImage
  96     wxImage img;
  97     CPPUNIT_ASSERT( img.LoadFile(fullname) == false );
  98         // test with the default wxBITMAP_TYPE_ANY
  99
 100     for (int type = wxBITMAP_TYPE_BMP; type < wxBITMAP_TYPE_ANY; type++)
 101         CPPUNIT_ASSERT( img.LoadFile(fullname, (wxBitmapType)type) == false );
 102             // test with all other possible wxBITMAP_TYPE_* flags
 103
 104     // test wxBitmap
 105     wxBitmap bmp;
 106     CPPUNIT_ASSERT( bmp.LoadFile(fullname) == false );
 107         // test with the default wxBITMAP_TYPE_ANY
 108
 109     for (int type = wxBITMAP_TYPE_BMP; type < wxBITMAP_TYPE_ANY; type++)
 110         CPPUNIT_ASSERT( bmp.LoadFile(fullname, (wxBitmapType)type) == false );
 111             // test with all other possible wxBITMAP_TYPE_* flags
 112
 113     // test wxIcon
 114     wxIcon icon;
 115     CPPUNIT_ASSERT( icon.LoadFile(fullname) == false );
 116         // test with the default wxICON_DEFAULT_TYPE
 117
 118     for (int type = wxBITMAP_TYPE_BMP; type < wxBITMAP_TYPE_ANY; type++)
 119         CPPUNIT_ASSERT( icon.LoadFile(fullname, (wxBitmapType)type) == false );
 120             // test with all other possible wxBITMAP_TYPE_* flags
 121
 122
 123     // test wxAnimation
 124     wxAnimation anim;
 125     CPPUNIT_ASSERT( anim.LoadFile(fullname) == false );
 126         // test with the default wxANIMATION_TYPE_ANY
 127
 128     for (int type = wxANIMATION_TYPE_INVALID+1; type < wxANIMATION_TYPE_ANY; type++)
 129         CPPUNIT_ASSERT( anim.LoadFile(fullname, (wxAnimationType)type) == false );
 130             // test with all other possible wxANIMATION_TYPE_* flags
 131
 132
 133     // test wxDynamicLibrary
 134     wxDynamicLibrary lib;
 135     CPPUNIT_ASSERT( lib.Load(fullname) == false );
 136         // test with the default wxANIMATION_TYPE_ANY
 137 /*
 138 #if wxUSE_MEDIACTRL
 139     // test wxMediaCtrl
 140     wxMediaCtrl *media = new wxMediaCtrl(wxTheApp->GetTopWindow());
 141     CPPUNIT_ASSERT( media->Load(fullname) == false );
 142 #endif
 143
 144     // test wxHtmlWindow
 145     wxHtmlWindow *htmlwin = new wxHtmlWindow(wxTheApp->GetTopWindow());
 146     CPPUNIT_ASSERT( htmlwin->LoadFile(fullname) == false );
 147     delete htmlwin;
 148 */
 149     // test wxXmlResource
 150     CPPUNIT_ASSERT( wxXmlResource::Get()->Load(fullname) == false );
 151 }
 152
 153 void GarbageTestCase::DoLoadStream(wxInputStream& stream)
 154 {
 155     // NOTE: not all classes tested by DoLoadFile() supports loading
 156     //       from an input stream!
 157
 158     // test wxImage
 159     wxImage img;
 160     CPPUNIT_ASSERT( img.LoadFile(stream) == false );
 161         // test with the default wxBITMAP_TYPE_ANY
 162
 163     for (int type = wxBITMAP_TYPE_INVALID+1; type < wxBITMAP_TYPE_ANY; type++)
 164         CPPUNIT_ASSERT( img.LoadFile(stream, (wxBitmapType)type) == false );
 165             // test with all other possible wxBITMAP_TYPE_* flags
 166
 167
 168     // test wxAnimation
 169     wxAnimation anim;
 170     CPPUNIT_ASSERT( anim.Load(stream) == false );
 171         // test with the default wxANIMATION_TYPE_ANY
 172
 173     for (int type = wxANIMATION_TYPE_INVALID+1; type < wxANIMATION_TYPE_ANY; type++)
 174         CPPUNIT_ASSERT( anim.Load(stream, (wxAnimationType)type) == false );
 175             // test with all other possible wxANIMATION_TYPE_* flags
 176 /*
 177     // test wxHtmlWindow
 178     wxHtmlWindow *htmlwin = new wxHtmlWindow(wxTheApp->GetTopWindow());
 179     CPPUNIT_ASSERT( htmlwin->LoadFile(fullname) == false );
 180     delete htmlwin;
 181 */
 182 }
 183