git.m6w6.name Git - awesomized/libmemcached/blob - libtest/vchar.cc

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Data Differential YATL (i.e. libtest)  library
   4  *
   5  *  Copyright (C) 2012 Data Differential, http://datadifferential.com/
   6  *
   7  *  Redistribution and use in source and binary forms, with or without
   8  *  modification, are permitted provided that the following conditions are
   9  *  met:
  10  *
  11  *      * Redistributions of source code must retain the above copyright
  12  *  notice, this list of conditions and the following disclaimer.
  13  *
  14  *      * Redistributions in binary form must reproduce the above
  15  *  copyright notice, this list of conditions and the following disclaimer
  16  *  in the documentation and/or other materials provided with the
  17  *  distribution.
  18  *
  19  *      * The names of its contributors may not be used to endorse or
  20  *  promote products derived from this software without specific prior
  21  *  written permission.
  22  *
  23  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  24  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  25  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  26  *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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  31  *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  32  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  33  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  *
  35  */
  36
  37 #include "libtest/yatlcon.h"
  38 #include <libtest/common.h>
  39
  40 /* Use this for string generation */
  41 static const char ALPHANUMERICS[]=
  42   "0123456789ABCDEFGHIJKLMNOPQRSTWXYZabcdefghijklmnopqrstuvwxyz";
  43
  44 #define ALPHANUMERICS_SIZE (sizeof(ALPHANUMERICS)-1)
  45
  46 static size_t get_alpha_num(void)
  47 {
  48   return (size_t)random() % ALPHANUMERICS_SIZE;
  49 }
  50
  51 namespace libtest {
  52
  53 int random_alpha_num(void)
  54 {
  55   return ALPHANUMERICS[get_alpha_num()];
  56 }
  57
  58 static std::string printer(const char *str, size_t length)
  59 {
  60   std::ostringstream buf;
  61   for (size_t x= 0; x < length; x++)
  62   {
  63     if (isprint(str[x]))
  64     {
  65       buf << str[x];
  66     }
  67     else
  68     {
  69       buf << "(" << int(str[x]) << ")";
  70     }
  71   }
  72
  73   return buf.str();
  74 }
  75
  76 namespace vchar {
  77
  78 int compare(libtest::vchar_t& arg, const char *str, size_t length)
  79 {
  80   if (arg.size() == length and (memcmp(&arg[0], str, length) == 0))
  81   {
  82     return 0;
  83   }
  84   else if (arg.size() > length)
  85   {
  86     return 1;
  87   }
  88
  89   return -1;
  90 }
  91
  92 void make(libtest::vchar_t& arg)
  93 {
  94   size_t length= rand() % 1024;
  95   make(arg, length);
  96 }
  97
  98 void make(libtest::vchar_t& arg, size_t length)
  99 {
 100   arg.reserve(length);
 101   for (uint32_t x= 0; x < length; ++x)
 102   {
 103     arg.push_back(ALPHANUMERICS[get_alpha_num()]);
 104   }
 105 }
 106
 107 void chomp(libtest::vchar_t& arg)
 108 {
 109   while(arg.size())
 110   {
 111     if (arg.back() == 0)
 112     {
 113       arg.pop_back();
 114     }
 115     else
 116     {
 117       break;
 118     }
 119   }
 120 }
 121
 122 void append(libtest::vchar_ptr_t& arg, const char* ptr)
 123 {
 124   if (ptr)
 125   {
 126     char* new_ptr= strdup(ptr);
 127     if (new_ptr == NULL)
 128     {
 129       FATAL("UNABLE to allocate %s(%p)", ptr, ptr);
 130     }
 131
 132     arg.push_back(new_ptr);
 133   }
 134 }
 135
 136 void append(libtest::vchar_t& arg, const char* ptr)
 137 {
 138   if (ptr)
 139   {
 140     size_t length= strlen(ptr);
 141     ASSERT_TRUE(length);
 142     arg.reserve(length);
 143     do
 144     {
 145       arg.push_back(*ptr);
 146       ++ptr;
 147     } while (*ptr);
 148
 149     arg.push_back(0);
 150   }
 151 }
 152
 153 } // namespace vchar
 154
 155 void make_vector(libtest::vchar_t& arg, const char *str, size_t length)
 156 {
 157   arg.resize(length);
 158   memcpy(&arg[0], str, length);
 159 }
 160
 161 std::ostream& operator<<(std::ostream& output, const libtest::vchar_t& arg)
 162 {
 163   std::string tmp= libtest::printer(arg.data(), arg.size());
 164   output << tmp <<  "[" << arg.size() << "]";
 165
 166   return output;
 167 }
 168
 169 } // namespace libtest