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TestBase64.cxx

/*=========================================================================

  Program: GDCM (Grassroots DICOM). A DICOM library
  Module:  $URL$

  Copyright (c) 2006-2010 Mathieu Malaterre
  All rights reserved.
  See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#include "gdcmBase64.h"
#include "gdcmTesting.h"
#include "gdcmSystem.h"

#include <string.h>

int TestBase64(int , char *[])
{
  const char str[] = "GDCM Test Base64 Encoding";
  gdcm::Base64 base64;

  std::cout << "sizeof:" << sizeof(str) << std::endl;
  std::cout << "strlen:" << strlen(str) << std::endl;
  unsigned int l1 = gdcm::Base64::GetEncodeLength( str, sizeof(str) );
  if( l1 != 37 )
    {
    std::cerr << "Fail 1: " << l1 << std::endl;
    return 1;
    }

  char buffer[256] = {};
  if( l1 > sizeof(buffer) )
    {
    std::cerr << "Fail 2" << std::endl;
    return 1;
    }

  int l2 = gdcm::Base64::Encode( buffer, sizeof(buffer), str, sizeof(str) );
  if( l2 != 0 )
    {
    std::cerr << "Fail 3" << std::endl;
    return 1;
    }

  size_t lbuffer = strlen(buffer);
  if( lbuffer != l1 - 1 )
    {
    std::cerr << "Fail 4" << std::endl;
    return 1;
    }

  unsigned int l3 = gdcm::Base64::GetDecodeLength( buffer, l1 - 1 );
  if( l3 != 26 )
    {
    std::cerr << "Fail 5" << std::endl;
    return 1;
    }
  if( l3 != sizeof(str) )
    {
    std::cerr << "Fail 6" << std::endl;
    return 1;
    }

  char buffer2[256];
  if( l3 > sizeof(buffer2) )
    {
    std::cerr << "Fail 7" << std::endl;
    return 1;
    }
  int l4 = gdcm::Base64::Decode( buffer2, sizeof(buffer2), buffer, l1 - 1);
  if( l4 != 0 )
    {
    std::cerr << "Fail 8" << std::endl;
    return 1;
    }

  if( strcmp( str, buffer2 ) != 0 )
    {
    std::cerr << "Fail 9" << std::endl;
    return 1;
    }

  return 0;
}


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