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 its 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     int type;
  96
  97     // test wxImage
  98     wxImage img;
  99     CPPUNIT_ASSERT( img.LoadFile(fullname) == false );
 100         // test with the default wxBITMAP_TYPE_ANY
 101
 102     for (type = wxBITMAP_TYPE_BMP; type < wxBITMAP_TYPE_ANY; type++)
 103         CPPUNIT_ASSERT( img.LoadFile(fullname, (wxBitmapType)type) == false );
 104             // test with all other possible wxBITMAP_TYPE_* flags
 105
 106     // test wxBitmap
 107     wxBitmap bmp;
 108     CPPUNIT_ASSERT( bmp.LoadFile(fullname) == false );
 109         // test with the default wxBITMAP_TYPE_ANY
 110
 111     for (type = wxBITMAP_TYPE_BMP; type < wxBITMAP_TYPE_ANY; type++)
 112         CPPUNIT_ASSERT( bmp.LoadFile(fullname, (wxBitmapType)type) == false );
 113             // test with all other possible wxBITMAP_TYPE_* flags
 114
 115     // test wxIcon
 116     wxIcon icon;
 117     CPPUNIT_ASSERT( icon.LoadFile(fullname) == false );
 118         // test with the default wxICON_DEFAULT_TYPE
 119
 120     for (type = wxBITMAP_TYPE_BMP; type < wxBITMAP_TYPE_ANY; type++)
 121         CPPUNIT_ASSERT( icon.LoadFile(fullname, (wxBitmapType)type) == false );
 122             // test with all other possible wxBITMAP_TYPE_* flags
 123
 124
 125     // test wxAnimation
 126     wxAnimation anim;
 127     CPPUNIT_ASSERT( anim.LoadFile(fullname) == false );
 128         // test with the default wxANIMATION_TYPE_ANY
 129
 130     for (type = wxANIMATION_TYPE_INVALID+1; type < wxANIMATION_TYPE_ANY; type++)
 131         CPPUNIT_ASSERT( anim.LoadFile(fullname, (wxAnimationType)type) == false );
 132             // test with all other possible wxANIMATION_TYPE_* flags
 133
 134
 135     // test wxDynamicLibrary
 136     wxDynamicLibrary lib;
 137     CPPUNIT_ASSERT( lib.Load(fullname) == false );
 138         // test with the default wxANIMATION_TYPE_ANY
 139 /*
 140 #if wxUSE_MEDIACTRL
 141     // test wxMediaCtrl
 142     wxMediaCtrl *media = new wxMediaCtrl(wxTheApp->GetTopWindow());
 143     CPPUNIT_ASSERT( media->Load(fullname) == false );
 144 #endif
 145
 146     // test wxHtmlWindow
 147     wxHtmlWindow *htmlwin = new wxHtmlWindow(wxTheApp->GetTopWindow());
 148     CPPUNIT_ASSERT( htmlwin->LoadFile(fullname) == false );
 149     delete htmlwin;
 150 */
 151     // test wxXmlResource
 152     CPPUNIT_ASSERT( wxXmlResource::Get()->Load(fullname) == false );
 153 }
 154
 155 void GarbageTestCase::DoLoadStream(wxInputStream& stream)
 156 {
 157     int type;
 158
 159     // NOTE: not all classes tested by DoLoadFile() supports loading
 160     //       from an input stream!
 161
 162     // test wxImage
 163     wxImage img;
 164     CPPUNIT_ASSERT( img.LoadFile(stream) == false );
 165         // test with the default wxBITMAP_TYPE_ANY
 166
 167     for (type = wxBITMAP_TYPE_INVALID+1; type < wxBITMAP_TYPE_ANY; type++)
 168         CPPUNIT_ASSERT( img.LoadFile(stream, (wxBitmapType)type) == false );
 169             // test with all other possible wxBITMAP_TYPE_* flags
 170
 171
 172     // test wxAnimation
 173     wxAnimation anim;
 174     CPPUNIT_ASSERT( anim.Load(stream) == false );
 175         // test with the default wxANIMATION_TYPE_ANY
 176
 177     for (type = wxANIMATION_TYPE_INVALID+1; type < wxANIMATION_TYPE_ANY; type++)
 178         CPPUNIT_ASSERT( anim.Load(stream, (wxAnimationType)type) == false );
 179             // test with all other possible wxANIMATION_TYPE_* flags
 180 /*
 181     // test wxHtmlWindow
 182     wxHtmlWindow *htmlwin = new wxHtmlWindow(wxTheApp->GetTopWindow());
 183     CPPUNIT_ASSERT( htmlwin->LoadFile(fullname) == false );
 184     delete htmlwin;
 185 */
 186 }
 187