common/include/test-ascii-string.c

   1 /* nbdkit
   2  * Copyright Red Hat
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *
  11  * * Redistributions in binary form must reproduce the above copyright
  12  * notice, this list of conditions and the following disclaimer in the
  13  * documentation and/or other materials provided with the distribution.
  14  *
  15  * * Neither the name of Red Hat nor the names of its contributors may be
  16  * used to endorse or promote products derived from this software without
  17  * specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  22  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  26  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  27  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  28  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  29  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #include <config.h>
  34
  35 #include <stdio.h>
  36 #include <stdlib.h>
  37 #undef NDEBUG /* Keep test strong even for nbdkit built without assertions */
  38 #include <assert.h>
  39
  40 #include "ascii-string.h"
  41
  42 int
  43 main (void)
  44 {
  45   assert (ascii_strcasecmp ("", "") == 0);
  46   assert (ascii_strcasecmp ("a", "a") == 0);
  47   assert (ascii_strcasecmp ("abc", "abc") == 0);
  48   assert (ascii_strcasecmp ("a", "b") < 0);
  49   assert (ascii_strcasecmp ("b", "a") > 0);
  50   assert (ascii_strcasecmp ("aa", "a") > 0);
  51
  52   /* Second string contains Turkish dotless lowercase letter ı. */
  53   assert (ascii_strcasecmp ("hi", "hı") != 0);
  54
  55   /* Check that we got our rounding behaviour correct. */
  56   assert (ascii_strcasecmp ("\x1", "\x7f") < 0);
  57   assert (ascii_strcasecmp ("\x1", "\x80") < 0);
  58   assert (ascii_strcasecmp ("\x1", "\x81") < 0);
  59   assert (ascii_strcasecmp ("\x1", "\xff") < 0);
  60
  61   assert (ascii_strncasecmp ("", "", 0) == 0);
  62   assert (ascii_strncasecmp ("a", "a", 1) == 0);
  63   assert (ascii_strncasecmp ("abc", "abc", 3) == 0);
  64   assert (ascii_strncasecmp ("abc", "def", 0) == 0);
  65   assert (ascii_strncasecmp ("abc", "abd", 2) == 0);
  66   assert (ascii_strncasecmp ("a", "b", 1) < 0);
  67   assert (ascii_strncasecmp ("b", "a", 1) > 0);
  68   assert (ascii_strncasecmp ("aa", "a", 2) > 0);
  69   assert (ascii_strncasecmp ("aa", "a", 100) > 0);
  70
  71   assert (ascii_strncasecmp ("hi", "hı", 1) == 0);
  72   assert (ascii_strncasecmp ("hi", "hı", 2) != 0);
  73
  74   assert (ascii_strncasecmp ("\x1", "\x7f", 1) < 0);
  75   assert (ascii_strncasecmp ("\x1", "\x80", 1) < 0);
  76   assert (ascii_strncasecmp ("\x1", "\x81", 1) < 0);
  77   assert (ascii_strncasecmp ("\x1", "\xff", 1) < 0);
  78
  79   exit (EXIT_SUCCESS);
  80 }