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 // Copyright:   (c) 2009 Francesco Montorsi
   7 ///////////////////////////////////////////////////////////////////////////////
   8
   9 // ----------------------------------------------------------------------------
  10 // headers
  11 // ----------------------------------------------------------------------------
  12
  13 #include "testprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #include "wx/filename.h"
  20 #include "wx/image.h"
  21 #include "wx/animate.h"
  22 #include "wx/mstream.h"
  23 #include "wx/dynlib.h"
  24 #include "wx/mediactrl.h"
  25 #include "wx/html/htmlwin.h"
  26 #include "wx/xrc/xmlres.h"
  27
  28 #define GARBAGE_DATA_SIZE   1000000             // in bytes; ~ 1MB
  29
  30 // ----------------------------------------------------------------------------
  31 // test class
  32 // ----------------------------------------------------------------------------
  33
  34 class GarbageTestCase : public CppUnit::TestCase
  35 {
  36 public:
  37     GarbageTestCase() { }
  38
  39 private:
  40     CPPUNIT_TEST_SUITE( GarbageTestCase );
  41         CPPUNIT_TEST( LoadGarbage );
  42     CPPUNIT_TEST_SUITE_END();
  43
  44     void LoadGarbage();
  45     void DoLoadFile(const wxString& fullname);
  46     void DoLoadStream(wxInputStream& stream);
  47
  48     DECLARE_NO_COPY_CLASS(GarbageTestCase)
  49 };
  50
  51 // register in the unnamed registry so that these tests are run by default
  52 CPPUNIT_TEST_SUITE_REGISTRATION( GarbageTestCase );
  53
  54 // also include in its own registry so that these tests can be run alone
  55 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( GarbageTestCase, "GarbageTestCase" );
  56
  57
  58 void GarbageTestCase::LoadGarbage()
  59 {
  60     srand(1234);
  61
  62     wxInitAllImageHandlers();
  63
  64     for (size_t size = 1; size < GARBAGE_DATA_SIZE; size *= size+1)
  65     {
  66         // first, generate some garbage data
  67         unsigned char *data = new unsigned char[size];
  68         for (size_t i = 0; i < size; i++)
  69             data[i] = rand();
  70
  71         // write it to a file
  72         wxString garbagename = wxFileName::CreateTempFileName("garbage");
  73         CPPUNIT_ASSERT( !garbagename.empty() );
  74
  75         wxFile garbage(garbagename, wxFile::write);
  76         CPPUNIT_ASSERT( garbage.IsOpened() );
  77
  78         CPPUNIT_ASSERT( garbage.Write(data, size) == size );
  79         garbage.Close();
  80
  81         // try to load it by name
  82         DoLoadFile(garbagename);
  83
  84         // try to load it from a wxInputStream
  85         wxMemoryInputStream stream(data, size);
  86         DoLoadStream(stream);
  87
  88         wxDELETEA(data);
  89     }
  90 }
  91
  92 void GarbageTestCase::DoLoadFile(const wxString& fullname)
  93 {
  94     int type;
  95
  96     // test wxImage
  97     wxImage img;
  98     CPPUNIT_ASSERT( img.LoadFile(fullname) == false );
  99         // test with the default wxBITMAP_TYPE_ANY
 100
 101     for (type = wxBITMAP_TYPE_BMP; type < wxBITMAP_TYPE_ANY; type++)
 102         CPPUNIT_ASSERT( img.LoadFile(fullname, (wxBitmapType)type) == false );
 103             // test with all other possible wxBITMAP_TYPE_* flags
 104
 105     // test wxBitmap
 106     wxBitmap bmp;
 107     CPPUNIT_ASSERT( bmp.LoadFile(fullname) == false );
 108         // test with the default wxBITMAP_TYPE_ANY
 109
 110     for (type = wxBITMAP_TYPE_BMP; type < wxBITMAP_TYPE_ANY; type++)
 111         CPPUNIT_ASSERT( bmp.LoadFile(fullname, (wxBitmapType)type) == false );
 112             // test with all other possible wxBITMAP_TYPE_* flags
 113
 114     // test wxIcon
 115     wxIcon icon;
 116     CPPUNIT_ASSERT( icon.LoadFile(fullname) == false );
 117         // test with the default wxICON_DEFAULT_TYPE
 118
 119     for (type = wxBITMAP_TYPE_BMP; type < wxBITMAP_TYPE_ANY; type++)
 120         CPPUNIT_ASSERT( icon.LoadFile(fullname, (wxBitmapType)type) == false );
 121             // test with all other possible wxBITMAP_TYPE_* flags
 122
 123
 124     // test wxAnimation
 125     wxAnimation anim;
 126     CPPUNIT_ASSERT( anim.LoadFile(fullname) == false );
 127         // test with the default wxANIMATION_TYPE_ANY
 128
 129     for (type = wxANIMATION_TYPE_INVALID+1; type < wxANIMATION_TYPE_ANY; type++)
 130         CPPUNIT_ASSERT( anim.LoadFile(fullname, (wxAnimationType)type) == false );
 131             // test with all other possible wxANIMATION_TYPE_* flags
 132
 133
 134     // test wxDynamicLibrary
 135     wxDynamicLibrary lib;
 136     CPPUNIT_ASSERT( lib.Load(fullname) == false );
 137         // test with the default wxANIMATION_TYPE_ANY
 138 /*
 139 #if wxUSE_MEDIACTRL
 140     // test wxMediaCtrl
 141     wxMediaCtrl *media = new wxMediaCtrl(wxTheApp->GetTopWindow());
 142     CPPUNIT_ASSERT( media->Load(fullname) == false );
 143 #endif
 144
 145     // test wxHtmlWindow
 146     wxHtmlWindow *htmlwin = new wxHtmlWindow(wxTheApp->GetTopWindow());
 147     CPPUNIT_ASSERT( htmlwin->LoadFile(fullname) == false );
 148     delete htmlwin;
 149 */
 150     // test wxXmlResource
 151     CPPUNIT_ASSERT( wxXmlResource::Get()->Load(fullname) == false );
 152 }
 153
 154 void GarbageTestCase::DoLoadStream(wxInputStream& stream)
 155 {
 156     int type;
 157
 158     // NOTE: not all classes tested by DoLoadFile() supports loading
 159     //       from an input stream!
 160
 161     // test wxImage
 162     wxImage img;
 163     CPPUNIT_ASSERT( img.LoadFile(stream) == false );
 164         // test with the default wxBITMAP_TYPE_ANY
 165
 166     for (type = wxBITMAP_TYPE_INVALID+1; type < wxBITMAP_TYPE_ANY; type++)
 167         CPPUNIT_ASSERT( img.LoadFile(stream, (wxBitmapType)type) == false );
 168             // test with all other possible wxBITMAP_TYPE_* flags
 169
 170
 171     // test wxAnimation
 172     wxAnimation anim;
 173     CPPUNIT_ASSERT( anim.Load(stream) == false );
 174         // test with the default wxANIMATION_TYPE_ANY
 175
 176     for (type = wxANIMATION_TYPE_INVALID+1; type < wxANIMATION_TYPE_ANY; type++)
 177         CPPUNIT_ASSERT( anim.Load(stream, (wxAnimationType)type) == false );
 178             // test with all other possible wxANIMATION_TYPE_* flags
 179 /*
 180     // test wxHtmlWindow
 181     wxHtmlWindow *htmlwin = new wxHtmlWindow(wxTheApp->GetTopWindow());
 182     CPPUNIT_ASSERT( htmlwin->LoadFile(fullname) == false );
 183     delete htmlwin;
 184 */
 185 }
 186