tests/streams/zlibstream.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/streams/zlibstream.cpp
   3 // Purpose:     Test wxZlibInputStream/wxZlibOutputStream
   4 // Author:      Hans Van Leemputten
   5 // Copyright:   (c) 2004 Hans Van Leemputten
   6 // Licence:     wxWindows licence
   7 ///////////////////////////////////////////////////////////////////////////////
   8
   9 // For compilers that support precompilation, includes "wx/wx.h".
  10 // and "wx/cppunit.h"
  11 #include "testprec.h"
  12
  13 #ifdef __BORLANDC__
  14     #pragma hdrstop
  15 #endif
  16
  17 // for all others, include the necessary headers
  18 #ifndef WX_PRECOMP
  19     #include "wx/wx.h"
  20 #endif
  21
  22 #include "wx/zstream.h"
  23 #include "wx/wfstream.h"
  24 #include "wx/mstream.h"
  25 #include "wx/txtstrm.h"
  26 #include "wx/buffer.h"
  27
  28 #include "bstream.h"
  29
  30 using std::string;
  31
  32 #define WXTEST_WITH_GZIP_CONDITION(testMethod) \
  33     WXTEST_WITH_CONDITION( COMPOSE_TEST_NAME(zlibStream), wxZlibInputStream::CanHandleGZip() && wxZlibOutputStream::CanHandleGZip(), testMethod )
  34
  35 #define DATABUFFER_SIZE 1024
  36
  37 static const wxString FILENAME_GZ = wxT("zlibtest.gz");
  38
  39 ///////////////////////////////////////////////////////////////////////////////
  40 // The test case
  41 //
  42 // Try to fully test wxZlibInputStream and wxZlibOutputStream
  43
  44 class zlibStream : public BaseStreamTestCase<wxZlibInputStream, wxZlibOutputStream>
  45 {
  46 public:
  47     zlibStream();
  48     virtual ~zlibStream();
  49
  50     CPPUNIT_TEST_SUITE(zlibStream);
  51         // Base class stream tests the zlibstream supports.
  52         CPPUNIT_TEST_FAIL(Input_GetSize);
  53         CPPUNIT_TEST(Input_GetC);
  54         CPPUNIT_TEST(Input_Read);
  55         CPPUNIT_TEST(Input_Eof);
  56         CPPUNIT_TEST(Input_LastRead);
  57         CPPUNIT_TEST(Input_CanRead);
  58         CPPUNIT_TEST_FAIL(Input_SeekI);
  59         CPPUNIT_TEST(Input_TellI);
  60         CPPUNIT_TEST(Input_Peek);
  61         CPPUNIT_TEST(Input_Ungetch);
  62
  63         CPPUNIT_TEST(Output_PutC);
  64         CPPUNIT_TEST(Output_Write);
  65         CPPUNIT_TEST(Output_LastWrite);
  66         CPPUNIT_TEST_FAIL(Output_SeekO);
  67         CPPUNIT_TEST(Output_TellO);
  68
  69         // Other test specific for zlib stream test case.
  70         CPPUNIT_TEST(TestStream_NoHeader_Default);
  71         CPPUNIT_TEST(TestStream_NoHeader_NoComp);
  72         CPPUNIT_TEST(TestStream_NoHeader_SpeedComp);
  73         CPPUNIT_TEST(TestStream_NoHeader_BestComp);
  74         CPPUNIT_TEST(TestStream_NoHeader_Dictionary);
  75         CPPUNIT_TEST(TestStream_ZLib_Default);
  76         CPPUNIT_TEST(TestStream_ZLib_NoComp);
  77         CPPUNIT_TEST(TestStream_ZLib_SpeedComp);
  78         CPPUNIT_TEST(TestStream_ZLib_BestComp);
  79         WXTEST_WITH_GZIP_CONDITION(TestStream_GZip_Default);
  80         WXTEST_WITH_GZIP_CONDITION(TestStream_GZip_NoComp);
  81         WXTEST_WITH_GZIP_CONDITION(TestStream_GZip_SpeedComp);
  82         WXTEST_WITH_GZIP_CONDITION(TestStream_GZip_BestComp);
  83         WXTEST_WITH_GZIP_CONDITION(TestStream_GZip_Dictionary);
  84         WXTEST_WITH_GZIP_CONDITION(TestStream_ZLibGZip);
  85         CPPUNIT_TEST(Decompress_BadData);
  86         CPPUNIT_TEST(Decompress_wx251_zlib114_Data_NoHeader);
  87         CPPUNIT_TEST(Decompress_wx251_zlib114_Data_ZLib);
  88         WXTEST_WITH_GZIP_CONDITION(Decompress_gzip135Data);
  89     CPPUNIT_TEST_SUITE_END();
  90
  91 protected:
  92     // Test different stream construct settings.
  93     void TestStream_NoHeader_Default();
  94     void TestStream_NoHeader_NoComp();
  95     void TestStream_NoHeader_SpeedComp();
  96     void TestStream_NoHeader_BestComp();
  97     void TestStream_NoHeader_Dictionary();
  98     void TestStream_ZLib_Default();
  99     void TestStream_ZLib_NoComp();
 100     void TestStream_ZLib_SpeedComp();
 101     void TestStream_ZLib_BestComp();
 102     void TestStream_GZip_Default();
 103     void TestStream_GZip_NoComp();
 104     void TestStream_GZip_SpeedComp();
 105     void TestStream_GZip_BestComp();
 106     void TestStream_GZip_Dictionary();
 107     void TestStream_ZLibGZip();
 108     // Try to decompress bad data.
 109     void Decompress_BadData();
 110     // Decompress data that was compress by an external app.
 111     // (like test wx 2.4.2, 2.5.1 and gzip data)
 112     // Note: This test is limited in testing range!
 113     void Decompress_wx251_zlib114_Data_NoHeader();
 114     void Decompress_wx251_zlib114_Data_ZLib();
 115     void Decompress_gzip135Data();
 116
 117 private:
 118     const char *GetDataBuffer();
 119     const unsigned char *GetCompressedData();
 120     void doTestStreamData(int input_flag, int output_flag, int compress_level, const wxMemoryBuffer *buf = NULL);
 121     void doDecompress_ExternalData(const unsigned char *data, const char *value, size_t data_size, size_t value_size, int flag = wxZLIB_AUTO);
 122
 123 private:
 124     // Implement base class functions.
 125     virtual wxZlibInputStream  *DoCreateInStream();
 126     virtual wxZlibOutputStream *DoCreateOutStream();
 127     virtual void DoDeleteInStream();
 128     virtual void DoDeleteOutStream();
 129
 130     // Helper that can be used to create new wx compatibility tests...
 131     // Otherwise not used by the tests.
 132     void genExtTestData(wxTextOutputStream &out, const char *buf, int flag);
 133
 134 private:
 135     char            m_DataBuffer[DATABUFFER_SIZE];
 136     size_t          m_SizeCompressedData;
 137     unsigned char  *m_pCompressedData;
 138     wxMemoryBuffer  m_Dictionary;
 139
 140     // Used by the base Creat[In|Out]Stream and Delete[In|Out]Stream.
 141     wxMemoryInputStream  *m_pTmpMemInStream;
 142     wxMemoryOutputStream *m_pTmpMemOutStream;
 143 };
 144
 145 zlibStream::zlibStream()
 146     :m_SizeCompressedData(0),
 147      m_pCompressedData(NULL),
 148      m_pTmpMemInStream(NULL),
 149      m_pTmpMemOutStream(NULL)
 150 {
 151     // Init the data buffer.
 152     for (size_t i = 0; i < DATABUFFER_SIZE; i++)
 153         m_DataBuffer[i] = (i % 0xFF);
 154
 155     m_Dictionary.AppendData(m_DataBuffer, sizeof(m_DataBuffer) / 2);
 156
 157     // Set extra base config settings.
 158     m_bSimpleTellITest = true;
 159     m_bSimpleTellOTest = true;
 160
 161 /* Example code on how to produce test data...
 162     {
 163         wxFFileOutputStream fstream_out(wxT("gentest.cpp"));
 164         wxTextOutputStream out( fstream_out );
 165
 166         genExtTestData(out, "zlib data created with wxWidgets 2.5.x [March 27], wxZLIB_NO_HEADER, zlib 1.1.4", wxZLIB_NO_HEADER);
 167         genExtTestData(out, "zlib data created with wxWidgets 2.5.x [March 27], wxZLIB_ZLIB, zlib 1.1.4", wxZLIB_ZLIB);
 168     }
 169 */
 170 }
 171
 172 zlibStream::~zlibStream()
 173 {
 174     delete[] m_pCompressedData;
 175
 176     delete m_pTmpMemInStream;
 177     delete m_pTmpMemOutStream;
 178 }
 179
 180 void zlibStream::TestStream_NoHeader_Default()
 181 {
 182     doTestStreamData(wxZLIB_NO_HEADER, wxZLIB_NO_HEADER, wxZ_DEFAULT_COMPRESSION);
 183 }
 184 void zlibStream::TestStream_NoHeader_NoComp()
 185 {
 186     doTestStreamData(wxZLIB_NO_HEADER, wxZLIB_NO_HEADER, wxZ_NO_COMPRESSION);
 187 }
 188 void zlibStream::TestStream_NoHeader_SpeedComp()
 189 {
 190     doTestStreamData(wxZLIB_NO_HEADER, wxZLIB_NO_HEADER, wxZ_BEST_SPEED);
 191 }
 192 void zlibStream::TestStream_NoHeader_BestComp()
 193 {
 194     doTestStreamData(wxZLIB_NO_HEADER, wxZLIB_NO_HEADER, wxZ_BEST_COMPRESSION);
 195 }
 196 void zlibStream::TestStream_NoHeader_Dictionary()
 197 {
 198     doTestStreamData(wxZLIB_NO_HEADER, wxZLIB_NO_HEADER, wxZ_DEFAULT_COMPRESSION, &m_Dictionary);
 199 }
 200
 201 void zlibStream::TestStream_ZLib_Default()
 202 {
 203     doTestStreamData(wxZLIB_ZLIB, wxZLIB_ZLIB, wxZ_DEFAULT_COMPRESSION);
 204 }
 205 void zlibStream::TestStream_ZLib_NoComp()
 206 {
 207     doTestStreamData(wxZLIB_ZLIB, wxZLIB_ZLIB, wxZ_NO_COMPRESSION);
 208 }
 209 void zlibStream::TestStream_ZLib_SpeedComp()
 210 {
 211     doTestStreamData(wxZLIB_ZLIB, wxZLIB_ZLIB, wxZ_BEST_SPEED);
 212 }
 213 void zlibStream::TestStream_ZLib_BestComp()
 214 {
 215     doTestStreamData(wxZLIB_ZLIB, wxZLIB_ZLIB, wxZ_BEST_COMPRESSION);
 216 }
 217
 218 void zlibStream::TestStream_GZip_Default()
 219 {
 220     doTestStreamData(wxZLIB_GZIP, wxZLIB_GZIP, wxZ_DEFAULT_COMPRESSION);
 221 }
 222 void zlibStream::TestStream_GZip_NoComp()
 223 {
 224     doTestStreamData(wxZLIB_GZIP, wxZLIB_GZIP, wxZ_NO_COMPRESSION);
 225 }
 226 void zlibStream::TestStream_GZip_SpeedComp()
 227 {
 228     doTestStreamData(wxZLIB_GZIP, wxZLIB_GZIP, wxZ_BEST_SPEED);
 229 }
 230 void zlibStream::TestStream_GZip_BestComp()
 231 {
 232     doTestStreamData(wxZLIB_GZIP, wxZLIB_GZIP, wxZ_BEST_COMPRESSION);
 233 }
 234 void zlibStream::TestStream_GZip_Dictionary()
 235 {
 236     doTestStreamData(wxZLIB_GZIP, wxZLIB_GZIP, wxZ_DEFAULT_COMPRESSION, &m_Dictionary);
 237 }
 238
 239 void zlibStream::TestStream_ZLibGZip()
 240 {
 241     // Only use default compression level, as this test is
 242     // for testing if the streams can determine the stream type info them self...
 243     doTestStreamData(wxZLIB_AUTO, wxZLIB_ZLIB, wxZ_DEFAULT_COMPRESSION);
 244     doTestStreamData(wxZLIB_AUTO, wxZLIB_GZIP, wxZ_DEFAULT_COMPRESSION);
 245 }
 246
 247 void zlibStream::Decompress_BadData()
 248 {
 249     // Setup the bad data stream and the zlib stream.
 250     wxMemoryInputStream memstream_in(GetDataBuffer(), DATABUFFER_SIZE);
 251     CPPUNIT_ASSERT(memstream_in.IsOk());
 252     wxZlibInputStream zstream_in(memstream_in);
 253     CPPUNIT_ASSERT(zstream_in.IsOk()); // We did not yet read from the stream
 254                                        // so it should still be OK.
 255     // Try to force the stream to go to bad status.
 256     CPPUNIT_ASSERT(!zstream_in.Eof());
 257     if (zstream_in.IsOk())
 258         zstream_in.GetC();
 259
 260     // Because of the bad data in the input stream the zlib
 261     // stream should be marked as NOT OK.
 262     CPPUNIT_ASSERT(!zstream_in.IsOk());
 263 }
 264
 265 void zlibStream::Decompress_wx251_zlib114_Data_NoHeader()
 266 {
 267     const unsigned char data[] = {171,202,201,76,82,72,73,44,73,84,72,46,74,77,44,73,77,81,40,207,44,201,80,40,175,8,207,76,73,79,45,41,86,48,210,51,213,171,80,136,246,77,44,74,206,80,48,50,143,213,1,202,69,249,120,58,197,251,249,199,123,184,58,186,184,6,233,40,84,129,12,49,212,51,212,51,1,0,32};
 268     const char *value = "zlib data created with wxWidgets 2.5.x [March 27], wxZLIB_NO_HEADER, zlib 1.1.4";
 269     const size_t data_size = sizeof(data);
 270     const size_t value_size = strlen(value);
 271     // We need to specify wxZLIB_NO_HEADER because wxZLIB_AUTO can't find it his self.
 272     doDecompress_ExternalData(data, value, data_size, value_size, wxZLIB_NO_HEADER);
 273 }
 274
 275 void zlibStream::Decompress_wx251_zlib114_Data_ZLib()
 276 {
 277     const unsigned char data[] = {120,156,171,202,201,76,82,72,73,44,73,84,72,46,74,77,44,73,77,81,40,207,44,201,80,40,175,8,207,76,73,79,45,41,86,48,210,51,213,171,80,136,246,77,44,74,206,80,48,50,143,213,1,202,69,249,120,58,197,131,8,29,133,42,144,126,67,61,67,61,19,0,191,86,23,216};
 278     const char *value = "zlib data created with wxWidgets 2.5.x [March 27], wxZLIB_ZLIB, zlib 1.1.4";
 279     const size_t data_size = sizeof(data);
 280     const size_t value_size = strlen(value);
 281     doDecompress_ExternalData(data, value, data_size, value_size);
 282 }
 283
 284 void zlibStream::Decompress_gzip135Data()
 285 {
 286     // Compressed data was on the command line with gzip 1.3.5.
 287     const unsigned char gzip135_data[] = {31,139,8,0,177,248,112,64,4,3,115,206,207,45,40,74,45,46,78,77,81,72,73,44,73,84,72,46,74,77,44,1,114,202,51,75,50,20,220,253,66,21,210,171,50,11,20,12,245,140,245,76,185,0,1,107,16,80,44,0,0,0,0};
 288     const char *gzip135_value = "Compressed data created with GNU gzip 1.3.5\n";
 289     // Size of the value and date items.
 290     const size_t data_size = sizeof(gzip135_data);
 291     const size_t value_size = strlen(gzip135_value);
 292
 293     // Perform a generic data test on the data.
 294     doDecompress_ExternalData(gzip135_data, gzip135_value, data_size, value_size);
 295 }
 296
 297 const char *zlibStream::GetDataBuffer()
 298 {
 299     return m_DataBuffer;
 300 }
 301
 302 const unsigned char *zlibStream::GetCompressedData()
 303 {
 304     if (!m_pCompressedData)
 305     {
 306         // Construct the compressed data live.
 307         wxMemoryOutputStream memstream_out;
 308         {
 309             const char *buf = "01234567890123456789012345678901234567890123456789"; /* = 50 */
 310             wxZlibOutputStream zstream_out(memstream_out);
 311             zstream_out.Write(buf, strlen(buf));
 312         }
 313
 314         // Copy the to the
 315         m_SizeCompressedData = memstream_out.GetSize();
 316         m_pCompressedData = new unsigned char[m_SizeCompressedData];
 317         memstream_out.CopyTo(m_pCompressedData, m_SizeCompressedData);
 318     }
 319
 320     CPPUNIT_ASSERT(m_pCompressedData != NULL);
 321     return m_pCompressedData;
 322 }
 323
 324 void zlibStream::doTestStreamData(int input_flag, int output_flag, int compress_level, const wxMemoryBuffer *buf)
 325 {
 326     size_t fail_pos;
 327     char last_value = 0;
 328     bool bWasEOF;
 329
 330     {   // Part one: Create a compressed file.
 331         wxFileOutputStream fstream_out(FILENAME_GZ);
 332         CPPUNIT_ASSERT(fstream_out.IsOk());
 333         {
 334             wxZlibOutputStream zstream_out(fstream_out, compress_level, output_flag);
 335             CPPUNIT_ASSERT_MESSAGE("Could not create the output stream", zstream_out.IsOk());
 336
 337             if (buf)
 338                 zstream_out.SetDictionary(*buf);
 339
 340             // Next: Compress some data so the file is containing something.
 341             zstream_out.Write(GetDataBuffer(), DATABUFFER_SIZE);
 342         }
 343
 344         // Next thing is required by zlib versions pre 1.2.0.
 345         if (input_flag == wxZLIB_NO_HEADER)
 346             fstream_out.PutC(' ');
 347     }
 348
 349     {   // Part two: Verify that the compressed data when uncompressed
 350         //           matches the original data.
 351         wxFileInputStream fstream_in(FILENAME_GZ);
 352         CPPUNIT_ASSERT(fstream_in.IsOk());
 353         wxZlibInputStream zstream_in(fstream_in, input_flag);
 354         CPPUNIT_ASSERT_MESSAGE("Could not create the input stream", zstream_in.IsOk());
 355
 356         if (buf)
 357             zstream_in.SetDictionary(*buf);
 358
 359         // Next: Check char per char if the returned data is valid.
 360         const char *pbuf = GetDataBuffer();
 361         for (fail_pos = 0; !zstream_in.Eof(); fail_pos++)
 362         {
 363             last_value = zstream_in.GetC();
 364             if (zstream_in.LastRead() != 1 ||
 365                 last_value != pbuf[fail_pos])
 366                 break;
 367         }
 368
 369         bWasEOF = zstream_in.Eof();
 370     }
 371
 372     // Remove the temp file...
 373     ::wxRemoveFile(FILENAME_GZ);
 374
 375     // Check state of the verify action.
 376     if (fail_pos != DATABUFFER_SIZE || !bWasEOF)
 377     {
 378         wxString msg;
 379         msg << wxT("Wrong data item at pos ") << fail_pos
 380             << wxT(" (Org_val ") << GetDataBuffer()[fail_pos]
 381             << wxT(" != Zlib_val ") << last_value
 382             << wxT("), with compression level ") << compress_level;
 383         CPPUNIT_FAIL(string(msg.mb_str()));
 384     }
 385 }
 386
 387 void zlibStream::doDecompress_ExternalData(const unsigned char *data, const char *value, size_t data_size, size_t value_size, int flag)
 388 {
 389     // See that the input is ok.
 390     wxASSERT(data != NULL);
 391     wxASSERT(value != NULL);
 392     wxASSERT(data_size > 0);
 393     wxASSERT(value_size > 0);
 394
 395     // Quickly try to see if the data is valid.
 396     switch (flag)
 397     {
 398     case wxZLIB_NO_HEADER:
 399         break;
 400     case wxZLIB_ZLIB:
 401         if (!(data_size >= 1 && data[0] == 0x78))
 402         {
 403             wxLogError(wxT("zlib data seems to not be zlib data!"));
 404         }
 405         break;
 406     case wxZLIB_GZIP:
 407         if (!(data_size >= 2 && data[0] == 0x1F && data[1] == 0x8B))
 408         {
 409             wxLogError(wxT("gzip data seems to not be gzip data!"));
 410         }
 411         break;
 412     case wxZLIB_AUTO:
 413         if (!(data_size >= 1 && data[0] == 0x78) ||
 414             !(data_size >= 2 && data[0] == 0x1F && data[1] == 0x8B))
 415         {
 416             wxLogError(wxT("Data seems to not be zlib or gzip data!"));
 417         }
 418     default:
 419         wxLogError(wxT("Unknown flag, skipping quick test."));
 420     };
 421
 422     // Creat the needed streams.
 423     wxMemoryInputStream memstream_in(data, data_size);
 424     CPPUNIT_ASSERT(memstream_in.IsOk());
 425     wxZlibInputStream zstream_in(memstream_in, flag);
 426     CPPUNIT_ASSERT(zstream_in.IsOk());
 427
 428     bool bValueEq = true;
 429     size_t i;
 430     for (i = 0; !zstream_in.Eof(); i++)
 431     {
 432         char last_value = zstream_in.GetC();
 433
 434         // First check if it is a valid read.
 435         if (zstream_in.LastRead() == 1)
 436         {
 437             // Check the values
 438             if (last_value != value[i])
 439             {
 440                 bValueEq = false;
 441                 break;
 442             }
 443         }
 444         else
 445         {
 446             // If the read failed and turned the stream to Eof we stop reading.
 447             if (zstream_in.Eof())
 448                 break;
 449
 450             CPPUNIT_ASSERT_MESSAGE("Stream is no longer ok!", zstream_in.IsOk());
 451         }
 452
 453         // Don't go over the end of the value buffer...
 454         if (i == value_size)
 455         {
 456             // And if we do then try to see how long the stream actually is.
 457             while (!zstream_in.Eof())
 458             {
 459                 // Move one item along in the stream.
 460                 (void)zstream_in.GetC();
 461                 i++;
 462
 463                 // Check if we are in an infinite loop by multiplying value_size
 464                 // by 5 to have a *much* bigger range then the real range.
 465                 // Note: In case you ask yourself, why 5, the answer is no reason...
 466                 //       it is not too big and not to small a size, nothing more
 467                 //       nothing less to it.
 468                 if (i > (value_size*5))
 469                 {
 470                     // Note: Please make sure Input_Eof test passed.
 471                     CPPUNIT_FAIL("Infinite stream detected, breaking the infinite loop");
 472                     return;
 473                 }
 474             }
 475         }
 476     }
 477
 478     CPPUNIT_ASSERT_MESSAGE("Could not decompress the compressed data, original and restored value did not match.",
 479                            i == value_size && bValueEq);
 480 }
 481
 482 wxZlibInputStream *zlibStream::DoCreateInStream()
 483 {
 484     const unsigned char *buf = GetCompressedData();
 485     m_pTmpMemInStream = new wxMemoryInputStream(buf, m_SizeCompressedData);
 486     CPPUNIT_ASSERT(m_pTmpMemInStream->IsOk());
 487     wxZlibInputStream *pzstream_in = new wxZlibInputStream(*m_pTmpMemInStream);
 488     CPPUNIT_ASSERT(pzstream_in->IsOk());
 489     return pzstream_in;
 490 }
 491 wxZlibOutputStream *zlibStream::DoCreateOutStream()
 492 {
 493     m_pTmpMemOutStream = new wxMemoryOutputStream();
 494     CPPUNIT_ASSERT(m_pTmpMemOutStream->IsOk());
 495     wxZlibOutputStream *pzstream_out = new wxZlibOutputStream(*m_pTmpMemOutStream);
 496     CPPUNIT_ASSERT(pzstream_out->IsOk());
 497     return pzstream_out;
 498 }
 499 void zlibStream::DoDeleteInStream()
 500 {
 501     delete m_pTmpMemInStream;
 502     m_pTmpMemInStream = NULL;
 503 }
 504 void zlibStream::DoDeleteOutStream()
 505 {
 506     delete m_pTmpMemOutStream;
 507     m_pTmpMemOutStream = NULL;
 508 }
 509
 510
 511 void zlibStream::genExtTestData(wxTextOutputStream &out, const char *buf, int flag)
 512 {
 513     unsigned char *data;
 514     size_t size;
 515
 516     {   // Gen data
 517         wxMemoryOutputStream memstream_out;
 518         {
 519             wxZlibOutputStream zstream_out(memstream_out, wxZ_DEFAULT_COMPRESSION, flag);
 520             zstream_out.Write(buf, strlen(buf));
 521         }
 522         if (flag == wxZLIB_NO_HEADER)
 523             memstream_out.PutC(' ');
 524
 525         size = memstream_out.GetSize();
 526         data = new unsigned char[size];
 527         memstream_out.CopyTo(data, size);
 528     }
 529
 530     out << wxT("void zlibStream::Decompress_wxXXXData()") << wxT("\n");
 531     out << wxT("{") << wxT("\n") << wxT("    const unsigned char data[] = {");
 532
 533     size_t i;
 534     for (i = 0; i < size; i++)
 535     {
 536         if (i+1 != size)
 537             out << wxString::Format(wxT("%d,"), data[i]);
 538         else
 539             out << wxString::Format(wxT("%d"), data[i]);
 540     }
 541     delete [] data;
 542
 543     out << wxT("};") << wxT("\n");
 544     out << wxT("    const char *value = \"") << wxString(buf, wxConvUTF8) << wxT("\";") << wxT("\n");
 545     out << wxT("    const size_t data_size = sizeof(data);") << wxT("\n");
 546     out << wxT("    const size_t value_size = strlen(value);") << wxT("\n");
 547     out << wxT("    doDecompress_ExternalData(data, value, data_size, value_size);") << wxT("\n");
 548     out << wxT("}") << wxT("\n");
 549 }
 550
 551
 552 // Register the stream sub suite, by using some stream helper macro.
 553 // Note: Don't forget to connect it to the base suite (See: bstream.cpp => StreamCase::suite())
 554 STREAM_TEST_SUBSUITE_NAMED_REGISTRATION(zlibStream)
 555