// Author: Hans Van Leemputten
// RCS-ID: $Id$
// Copyright: (c) 2004 Hans Van Leemputten
-// Licence: wxWidgets licence
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
-#if defined(__GNUG__) && !defined(__APPLE__)
- #pragma implementation
- #pragma interface
-#endif
-
// For compilers that support precompilation, includes "wx/wx.h".
-#include "wx/wxprec.h"
+// and "wx/cppunit.h"
+#include "testprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#include "wx/wx.h"
#endif
-#include "wx/cppunit.h"
#include "wx/zstream.h"
#include "wx/wfstream.h"
#include "wx/mstream.h"
+#include "wx/txtstrm.h"
+#include "wx/buffer.h"
#include "bstream.h"
-using namespace std;
-using namespace CppUnit;
+using std::string;
#define WXTEST_WITH_GZIP_CONDITION(testMethod) \
WXTEST_WITH_CONDITION( COMPOSE_TEST_NAME(zlibStream), wxZlibInputStream::CanHandleGZip() && wxZlibOutputStream::CanHandleGZip(), testMethod )
#define DATABUFFER_SIZE 1024
-static const wxString FILENAME_GZ = _T("zlibtest.gz");
+static const wxString FILENAME_GZ = wxT("zlibtest.gz");
///////////////////////////////////////////////////////////////////////////////
// The test case
CPPUNIT_TEST(Input_Read);
CPPUNIT_TEST(Input_Eof);
CPPUNIT_TEST(Input_LastRead);
+ CPPUNIT_TEST(Input_CanRead);
CPPUNIT_TEST_FAIL(Input_SeekI);
CPPUNIT_TEST(Input_TellI);
CPPUNIT_TEST(Input_Peek);
CPPUNIT_TEST(TestStream_NoHeader_NoComp);
CPPUNIT_TEST(TestStream_NoHeader_SpeedComp);
CPPUNIT_TEST(TestStream_NoHeader_BestComp);
+ CPPUNIT_TEST(TestStream_NoHeader_Dictionary);
CPPUNIT_TEST(TestStream_ZLib_Default);
CPPUNIT_TEST(TestStream_ZLib_NoComp);
CPPUNIT_TEST(TestStream_ZLib_SpeedComp);
WXTEST_WITH_GZIP_CONDITION(TestStream_GZip_NoComp);
WXTEST_WITH_GZIP_CONDITION(TestStream_GZip_SpeedComp);
WXTEST_WITH_GZIP_CONDITION(TestStream_GZip_BestComp);
+ WXTEST_WITH_GZIP_CONDITION(TestStream_GZip_Dictionary);
WXTEST_WITH_GZIP_CONDITION(TestStream_ZLibGZip);
CPPUNIT_TEST(Decompress_BadData);
- CPPUNIT_TEST(Decompress_wx24Data);
+ CPPUNIT_TEST(Decompress_wx251_zlib114_Data_NoHeader);
+ CPPUNIT_TEST(Decompress_wx251_zlib114_Data_ZLib);
+ WXTEST_WITH_GZIP_CONDITION(Decompress_gzip135Data);
CPPUNIT_TEST_SUITE_END();
protected:
void TestStream_NoHeader_NoComp();
void TestStream_NoHeader_SpeedComp();
void TestStream_NoHeader_BestComp();
+ void TestStream_NoHeader_Dictionary();
void TestStream_ZLib_Default();
void TestStream_ZLib_NoComp();
void TestStream_ZLib_SpeedComp();
void TestStream_GZip_NoComp();
void TestStream_GZip_SpeedComp();
void TestStream_GZip_BestComp();
+ void TestStream_GZip_Dictionary();
void TestStream_ZLibGZip();
// Try to decompress bad data.
void Decompress_BadData();
- // Decompress a data file created with wx 2.4.
+ // Decompress data that was compress by an external app.
+ // (like test wx 2.4.2, 2.5.1 and gzip data)
// Note: This test is limited in testing range!
- void Decompress_wx24Data();
+ void Decompress_wx251_zlib114_Data_NoHeader();
+ void Decompress_wx251_zlib114_Data_ZLib();
+ void Decompress_gzip135Data();
private:
const char *GetDataBuffer();
const unsigned char *GetCompressedData();
- void doTestStreamData(int input_flag, int output_flag, int compress_level);
+ void doTestStreamData(int input_flag, int output_flag, int compress_level, const wxMemoryBuffer *buf = NULL);
+ void doDecompress_ExternalData(const unsigned char *data, const char *value, size_t data_size, size_t value_size, int flag = wxZLIB_AUTO);
private:
// Implement base class functions.
- virtual wxZlibInputStream *DoCreateInStream();
+ virtual wxZlibInputStream *DoCreateInStream();
virtual wxZlibOutputStream *DoCreateOutStream();
virtual void DoDeleteInStream();
virtual void DoDeleteOutStream();
+ // Helper that can be used to create new wx compatibility tests...
+ // Otherwise not used by the tests.
+ void genExtTestData(wxTextOutputStream &out, const char *buf, int flag);
+
private:
char m_DataBuffer[DATABUFFER_SIZE];
size_t m_SizeCompressedData;
unsigned char *m_pCompressedData;
+ wxMemoryBuffer m_Dictionary;
// Used by the base Creat[In|Out]Stream and Delete[In|Out]Stream.
wxMemoryInputStream *m_pTmpMemInStream;
for (size_t i = 0; i < DATABUFFER_SIZE; i++)
m_DataBuffer[i] = (i % 0xFF);
+ m_Dictionary.AppendData(m_DataBuffer, sizeof(m_DataBuffer) / 2);
+
// Set extra base config settings.
m_bSimpleTellITest = true;
m_bSimpleTellOTest = true;
+
+/* Example code on how to produce test data...
+ {
+ wxFFileOutputStream fstream_out(wxT("gentest.cpp"));
+ wxTextOutputStream out( fstream_out );
+
+ genExtTestData(out, "zlib data created with wxWidgets 2.5.x [March 27], wxZLIB_NO_HEADER, zlib 1.1.4", wxZLIB_NO_HEADER);
+ genExtTestData(out, "zlib data created with wxWidgets 2.5.x [March 27], wxZLIB_ZLIB, zlib 1.1.4", wxZLIB_ZLIB);
+ }
+*/
}
zlibStream::~zlibStream()
{
- delete m_pCompressedData;
+ delete[] m_pCompressedData;
delete m_pTmpMemInStream;
delete m_pTmpMemOutStream;
{
doTestStreamData(wxZLIB_NO_HEADER, wxZLIB_NO_HEADER, wxZ_BEST_COMPRESSION);
}
+void zlibStream::TestStream_NoHeader_Dictionary()
+{
+ doTestStreamData(wxZLIB_NO_HEADER, wxZLIB_NO_HEADER, wxZ_DEFAULT_COMPRESSION, &m_Dictionary);
+}
void zlibStream::TestStream_ZLib_Default()
{
{
doTestStreamData(wxZLIB_GZIP, wxZLIB_GZIP, wxZ_BEST_COMPRESSION);
}
+void zlibStream::TestStream_GZip_Dictionary()
+{
+ doTestStreamData(wxZLIB_GZIP, wxZLIB_GZIP, wxZ_DEFAULT_COMPRESSION, &m_Dictionary);
+}
void zlibStream::TestStream_ZLibGZip()
{
- // Only use default compression level, as this test is
+ // Only use default compression level, as this test is
// for testing if the streams can determine the stream type info them self...
- doTestStreamData(wxZLIB_ZLIB|wxZLIB_GZIP, wxZLIB_ZLIB, wxZ_DEFAULT_COMPRESSION);
- doTestStreamData(wxZLIB_ZLIB|wxZLIB_GZIP, wxZLIB_GZIP, wxZ_DEFAULT_COMPRESSION);
+ doTestStreamData(wxZLIB_AUTO, wxZLIB_ZLIB, wxZ_DEFAULT_COMPRESSION);
+ doTestStreamData(wxZLIB_AUTO, wxZLIB_GZIP, wxZ_DEFAULT_COMPRESSION);
}
void zlibStream::Decompress_BadData()
wxMemoryInputStream memstream_in(GetDataBuffer(), DATABUFFER_SIZE);
CPPUNIT_ASSERT(memstream_in.IsOk());
wxZlibInputStream zstream_in(memstream_in);
- CPPUNIT_ASSERT(zstream_in.IsOk()); // We did not yet read from the stream
+ CPPUNIT_ASSERT(zstream_in.IsOk()); // We did not yet read from the stream
// so it should still be OK.
// Try to force the stream to go to bad status.
CPPUNIT_ASSERT(!zstream_in.Eof());
CPPUNIT_ASSERT(!zstream_in.IsOk());
}
-void zlibStream::Decompress_wx24Data()
+void zlibStream::Decompress_wx251_zlib114_Data_NoHeader()
{
- // The wx24_value was used in a wxWidgets 2.4(.2)
- // application to produce wx24_data, using wxZlibOutputStream.
- const unsigned char wx24_data[] = {120,156,242,72,205,201,201,87,40,207,47,202,73,97,0,0,0,0,255,255,0};
- const char *wx24_value = "Hello world";
- // Size of the value and date items.
- const size_t data_size = sizeof(wx24_data);
- const size_t value_size = strlen(wx24_value);
-
- const unsigned char *buf = GetCompressedData();
- m_pTmpMemInStream = new wxMemoryInputStream(buf, m_SizeCompressedData);
-
- wxMemoryInputStream memstream_in(wx24_data, data_size);
- CPPUNIT_ASSERT(memstream_in.IsOk());
- wxZlibInputStream zstream_in(memstream_in);
- CPPUNIT_ASSERT(zstream_in.IsOk());
-
- size_t i;
- for (i = 0; !zstream_in.Eof(); i++)
- {
- char last_value = zstream_in.GetC();
- if (last_value != wx24_value[i])
- break;
+ 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};
+ const char *value = "zlib data created with wxWidgets 2.5.x [March 27], wxZLIB_NO_HEADER, zlib 1.1.4";
+ const size_t data_size = sizeof(data);
+ const size_t value_size = strlen(value);
+ // We need to specify wxZLIB_NO_HEADER because wxZLIB_AUTO can't find it his self.
+ doDecompress_ExternalData(data, value, data_size, value_size, wxZLIB_NO_HEADER);
+}
- // Don't go over the end of the value buffer...
- if (wx24_value[i] == '\0')
- {
- // And if we do then try to see how long the stream actually is.
- for (/* nothing */; !zstream_in.Eof(); i++)
- {
- // Move one item along in the stream.
- (void)zstream_in.GetC();
-
- // Check if we are in an infinite loop by multiplying value_size
- // by 5 to have a *much* bigger range then the real range.
- // Note: Incase you ask your self, why 5, the answer is no reason...
- // it is not to big and not to small a size, nothing more
- // nothing less to it.
- if (i > (value_size*5))
- {
- // Note: Please make sure Input_Eof test passed.
- CPPUNIT_FAIL("Infinite stream detected, breaking the infinite loop");
- return;
- }
- }
+void zlibStream::Decompress_wx251_zlib114_Data_ZLib()
+{
+ 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};
+ const char *value = "zlib data created with wxWidgets 2.5.x [March 27], wxZLIB_ZLIB, zlib 1.1.4";
+ const size_t data_size = sizeof(data);
+ const size_t value_size = strlen(value);
+ doDecompress_ExternalData(data, value, data_size, value_size);
+}
- break;
- }
- }
+void zlibStream::Decompress_gzip135Data()
+{
+ // Compressed data was on the command line with gzip 1.3.5.
+ 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};
+ const char *gzip135_value = "Compressed data created with GNU gzip 1.3.5\n";
+ // Size of the value and date items.
+ const size_t data_size = sizeof(gzip135_data);
+ const size_t value_size = strlen(gzip135_value);
- CPPUNIT_ASSERT_MESSAGE("Could not decompress data that was compressed with wxWidgets 2.4.x", i == (value_size + 1));
+ // Perform a generic data test on the data.
+ doDecompress_ExternalData(gzip135_data, gzip135_value, data_size, value_size);
}
const char *zlibStream::GetDataBuffer()
{
if (!m_pCompressedData)
{
-#if 1
// Construct the compressed data live.
wxMemoryOutputStream memstream_out;
{
zstream_out.Write(buf, strlen(buf));
}
- // Copy the to the
+ // Copy the to the
m_SizeCompressedData = memstream_out.GetSize();
m_pCompressedData = new unsigned char[m_SizeCompressedData];
memstream_out.CopyTo(m_pCompressedData, m_SizeCompressedData);
-#else
- // Or use recorded compressed data.
- const unsigned char tmp[] = {120,218,51,48,52,50,54,49,53,51,183,176,52,32,142,197,0,0,3,229,10,9,0};
- m_SizeCompressedData = sizeof(tmp);
- m_pCompressedData = new unsigned char[m_SizeCompressedData+1];
- memcpy(m_pCompressedData, tmp, m_SizeCompressedData);
-#endif
}
- CPPUNIT_ASSERT(m_pCompressedData != NULL);
+ CPPUNIT_ASSERT(m_pCompressedData != NULL);
return m_pCompressedData;
}
-void zlibStream::doTestStreamData(int input_flag, int output_flag, int compress_level)
+void zlibStream::doTestStreamData(int input_flag, int output_flag, int compress_level, const wxMemoryBuffer *buf)
{
- size_t fail_pos = 0;
+ size_t fail_pos;
char last_value = 0;
- bool bWasEOF = true;
+ bool bWasEOF;
{ // Part one: Create a compressed file.
wxFileOutputStream fstream_out(FILENAME_GZ);
CPPUNIT_ASSERT(fstream_out.IsOk());
- wxZlibOutputStream zstream_out(fstream_out, compress_level, output_flag);
- if (!zstream_out.IsOk())
{
- if (output_flag == wxZLIB_GZIP)
- CPPUNIT_FAIL("Could not create the gzip output stream. Note: gzip requires zlib 1.2+!");
- else
- CPPUNIT_FAIL("Could not create the output stream");
+ wxZlibOutputStream zstream_out(fstream_out, compress_level, output_flag);
+ CPPUNIT_ASSERT_MESSAGE("Could not create the output stream", zstream_out.IsOk());
+
+ if (buf)
+ zstream_out.SetDictionary(*buf);
+
+ // Next: Compress some data so the file is containing something.
+ zstream_out.Write(GetDataBuffer(), DATABUFFER_SIZE);
}
- // Next: Compress some data so the file is containing something.
- zstream_out.Write(GetDataBuffer(), DATABUFFER_SIZE);
+ // Next thing is required by zlib versions pre 1.2.0.
+ if (input_flag == wxZLIB_NO_HEADER)
+ fstream_out.PutC(' ');
}
- { // Part two: Verify that the compressed data when uncompressed
+ { // Part two: Verify that the compressed data when uncompressed
// matches the original data.
wxFileInputStream fstream_in(FILENAME_GZ);
CPPUNIT_ASSERT(fstream_in.IsOk());
wxZlibInputStream zstream_in(fstream_in, input_flag);
CPPUNIT_ASSERT_MESSAGE("Could not create the input stream", zstream_in.IsOk());
+ if (buf)
+ zstream_in.SetDictionary(*buf);
+
// Next: Check char per char if the returned data is valid.
const char *pbuf = GetDataBuffer();
for (fail_pos = 0; !zstream_in.Eof(); fail_pos++)
{
last_value = zstream_in.GetC();
- if (last_value != pbuf[fail_pos])
+ if (zstream_in.LastRead() != 1 ||
+ last_value != pbuf[fail_pos])
break;
}
// Check state of the verify action.
if (fail_pos != DATABUFFER_SIZE || !bWasEOF)
{
- wxString msg(wxString::Format(_T("Wrong data item at pos %d (Org_val %d != Zlib_val %d), with compression level %d"),
- fail_pos, GetDataBuffer()[fail_pos], last_value, compress_level));
+ wxString msg;
+ msg << wxT("Wrong data item at pos ") << fail_pos
+ << wxT(" (Org_val ") << GetDataBuffer()[fail_pos]
+ << wxT(" != Zlib_val ") << last_value
+ << wxT("), with compression level ") << compress_level;
CPPUNIT_FAIL(string(msg.mb_str()));
}
}
-wxZlibInputStream *zlibStream::DoCreateInStream()
-{
+void zlibStream::doDecompress_ExternalData(const unsigned char *data, const char *value, size_t data_size, size_t value_size, int flag)
+{
+ // See that the input is ok.
+ wxASSERT(data != NULL);
+ wxASSERT(value != NULL);
+ wxASSERT(data_size > 0);
+ wxASSERT(value_size > 0);
+
+ // Quickly try to see if the data is valid.
+ switch (flag)
+ {
+ case wxZLIB_NO_HEADER:
+ break;
+ case wxZLIB_ZLIB:
+ if (!(data_size >= 1 && data[0] == 0x78))
+ {
+ wxLogError(wxT("zlib data seems to not be zlib data!"));
+ }
+ break;
+ case wxZLIB_GZIP:
+ if (!(data_size >= 2 && data[0] == 0x1F && data[1] == 0x8B))
+ {
+ wxLogError(wxT("gzip data seems to not be gzip data!"));
+ }
+ break;
+ case wxZLIB_AUTO:
+ if (!(data_size >= 1 && data[0] == 0x78) ||
+ !(data_size >= 2 && data[0] == 0x1F && data[1] == 0x8B))
+ {
+ wxLogError(wxT("Data seems to not be zlib or gzip data!"));
+ }
+ default:
+ wxLogError(wxT("Unknown flag, skipping quick test."));
+ };
+
+ // Creat the needed streams.
+ wxMemoryInputStream memstream_in(data, data_size);
+ CPPUNIT_ASSERT(memstream_in.IsOk());
+ wxZlibInputStream zstream_in(memstream_in, flag);
+ CPPUNIT_ASSERT(zstream_in.IsOk());
+
+ bool bValueEq = true;
+ size_t i;
+ for (i = 0; !zstream_in.Eof(); i++)
+ {
+ char last_value = zstream_in.GetC();
+
+ // First check if it is a valid read.
+ if (zstream_in.LastRead() == 1)
+ {
+ // Check the values
+ if (last_value != value[i])
+ {
+ bValueEq = false;
+ break;
+ }
+ }
+ else
+ {
+ // If the read failed and turned the stream to Eof we stop reading.
+ if (zstream_in.Eof())
+ break;
+
+ CPPUNIT_ASSERT_MESSAGE("Stream is no longer ok!", zstream_in.IsOk());
+ }
+
+ // Don't go over the end of the value buffer...
+ if (i == value_size)
+ {
+ // And if we do then try to see how long the stream actually is.
+ while (!zstream_in.Eof())
+ {
+ // Move one item along in the stream.
+ (void)zstream_in.GetC();
+ i++;
+
+ // Check if we are in an infinite loop by multiplying value_size
+ // by 5 to have a *much* bigger range then the real range.
+ // Note: In case you ask yourself, why 5, the answer is no reason...
+ // it is not too big and not to small a size, nothing more
+ // nothing less to it.
+ if (i > (value_size*5))
+ {
+ // Note: Please make sure Input_Eof test passed.
+ CPPUNIT_FAIL("Infinite stream detected, breaking the infinite loop");
+ return;
+ }
+ }
+ }
+ }
+
+ CPPUNIT_ASSERT_MESSAGE("Could not decompress the compressed data, original and restored value did not match.",
+ i == value_size && bValueEq);
+}
+
+wxZlibInputStream *zlibStream::DoCreateInStream()
+{
const unsigned char *buf = GetCompressedData();
m_pTmpMemInStream = new wxMemoryInputStream(buf, m_SizeCompressedData);
CPPUNIT_ASSERT(m_pTmpMemInStream->IsOk());
return pzstream_in;
}
wxZlibOutputStream *zlibStream::DoCreateOutStream()
-{
+{
m_pTmpMemOutStream = new wxMemoryOutputStream();
CPPUNIT_ASSERT(m_pTmpMemOutStream->IsOk());
wxZlibOutputStream *pzstream_out = new wxZlibOutputStream(*m_pTmpMemOutStream);
CPPUNIT_ASSERT(pzstream_out->IsOk());
return pzstream_out;
}
-void zlibStream::DoDeleteInStream()
-{
+void zlibStream::DoDeleteInStream()
+{
delete m_pTmpMemInStream;
m_pTmpMemInStream = NULL;
}
-void zlibStream::DoDeleteOutStream()
-{
+void zlibStream::DoDeleteOutStream()
+{
delete m_pTmpMemOutStream;
m_pTmpMemOutStream = NULL;
}
+
+void zlibStream::genExtTestData(wxTextOutputStream &out, const char *buf, int flag)
+{
+ unsigned char *data;
+ size_t size;
+
+ { // Gen data
+ wxMemoryOutputStream memstream_out;
+ {
+ wxZlibOutputStream zstream_out(memstream_out, wxZ_DEFAULT_COMPRESSION, flag);
+ zstream_out.Write(buf, strlen(buf));
+ }
+ if (flag == wxZLIB_NO_HEADER)
+ memstream_out.PutC(' ');
+
+ size = memstream_out.GetSize();
+ data = new unsigned char[size];
+ memstream_out.CopyTo(data, size);
+ }
+
+ out << wxT("void zlibStream::Decompress_wxXXXData()") << wxT("\n");
+ out << wxT("{") << wxT("\n") << wxT(" const unsigned char data[] = {");
+
+ size_t i;
+ for (i = 0; i < size; i++)
+ {
+ if (i+1 != size)
+ out << wxString::Format(wxT("%d,"), data[i]);
+ else
+ out << wxString::Format(wxT("%d"), data[i]);
+ }
+ delete [] data;
+
+ out << wxT("};") << wxT("\n");
+ out << wxT(" const char *value = \"") << wxString(buf, wxConvUTF8) << wxT("\";") << wxT("\n");
+ out << wxT(" const size_t data_size = sizeof(data);") << wxT("\n");
+ out << wxT(" const size_t value_size = strlen(value);") << wxT("\n");
+ out << wxT(" doDecompress_ExternalData(data, value, data_size, value_size);") << wxT("\n");
+ out << wxT("}") << wxT("\n");
+}
+
+
// Register the stream sub suite, by using some stream helper macro.
// Note: Don't forget to connect it to the base suite (See: bstream.cpp => StreamCase::suite())
STREAM_TEST_SUBSUITE_NAMED_REGISTRATION(zlibStream)
projects / wxWidgets.git / blobdiff