tests/test-c-strcasecmp.c

   1 /* Test of case-insensitive string comparison function.
   2    Copyright (C) 2007-2024 Free Software Foundation, Inc.
   3
   4    This program is free software: you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation, either version 3 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  16
  17 /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
  18
  19 #include <config.h>
  20
  21 #include "c-strcase.h"
  22 #include "c-ctype.h"
  23
  24 #include <locale.h>
  25 #include <string.h>
  26
  27 #include "macros.h"
  28
  29 int
  30 main (int argc, char *argv[])
  31 {
  32   if (argc > 1)
  33     {
  34       /* configure should already have checked that the locale is supported.  */
  35       if (setlocale (LC_ALL, "") == NULL)
  36         return 1;
  37     }
  38
  39   ASSERT (c_strcasecmp ("paragraph", "Paragraph") == 0);
  40
  41   ASSERT (c_strcasecmp ("paragrapH", "parAgRaph") == 0);
  42
  43   ASSERT (c_strcasecmp ("paragraph", "paraLyzed") < 0);
  44   ASSERT (c_strcasecmp ("paraLyzed", "paragraph") > 0);
  45
  46   ASSERT (c_strcasecmp ("para", "paragraph") < 0);
  47   ASSERT (c_strcasecmp ("paragraph", "para") > 0);
  48
  49   /* The following tests shows how c_strcasecmp() is different from
  50      strcasecmp().  */
  51
  52   ASSERT (c_strcasecmp ("\311mile", "\351mile") < 0);
  53   ASSERT (c_strcasecmp ("\351mile", "\311mile") > 0);
  54
  55   /* The following tests shows how c_strcasecmp() is different from
  56      mbscasecmp().  */
  57
  58   ASSERT (c_strcasecmp ("\303\266zg\303\274r", "\303\226ZG\303\234R") > 0); /* özgür */
  59   ASSERT (c_strcasecmp ("\303\226ZG\303\234R", "\303\266zg\303\274r") < 0); /* özgür */
  60
  61 #if C_CTYPE_ASCII
  62   /* This test shows how strings of different size cannot compare equal.  */
  63   ASSERT (c_strcasecmp ("turkish", "TURK\304\260SH") < 0);
  64   ASSERT (c_strcasecmp ("TURK\304\260SH", "turkish") > 0);
  65 #endif
  66
  67   return test_exit_status;
  68 }