usr/src/test/libc-tests/tests/wcsncasecmp.c

   1 /*
   2  * This file and its contents are supplied under the terms of the
   3  * Common Development and Distribution License ("CDDL"), version 1.0.
   4  * You may only use this file in accordance with the terms of version
   5  * 1.0 of the CDDL.
   6  *
   7  * A full copy of the text of the CDDL should have accompanied this
   8  * source.  A copy of the CDDL is also available via the Internet at
   9  * http://www.illumos.org/license/CDDL.
  10  */
  11
  12 /*
  13  * Copyright 2016 Joyent, Inc.
  14  */
  15
  16 /*
  17  * General tests for wcsncasecmp(). Test to make sure that the following are
  18  * true:
  19  *
  20  *   o Two identical strings are equal
  21  *   o Two strings with the same contents are equal
  22  *   o Case insensitive in ASCII works
  23  *   o Basic cases where strings aren't equal
  24  *   o An ASCII string that would compare greater due to case is properly less
  25  *   o Comparing with zero characters succeeds even if different strings
  26  *   o Characters in a locale / language that don't have a notion of case are
  27  *     consistent
  28  */
  29
  30 #include <wchar.h>
  31 #include <string.h>
  32 #include <strings.h>
  33 #include <stdlib.h>
  34 #include <locale.h>
  35 #include <sys/debug.h>
  36
  37 int
  38 main(void)
  39 {
  40         int ret;
  41         wchar_t a[32], b[32];
  42         const char *str = "kefka";
  43         const char *caps = "KEFKA";
  44         const char *less = "celes";
  45         const char *more = "terra";
  46         const char *hikari = "光";
  47         const char *awake = "目覚め";
  48         size_t len = strlen(str);
  49
  50         /*
  51          * Start in en_US.UTF-8, which the test suites deps guarantee is
  52          * present.
  53          */
  54         (void) setlocale(LC_ALL, "en_US.UTF-8");
  55         (void) memset(a, 'a', sizeof (a));
  56         (void) memset(b, 'b', sizeof (b));
  57
  58         ret = mbstowcs(a, str, len);
  59         VERIFY3U(ret, ==, len);
  60         ret = mbstowcs(b, str, len);
  61         VERIFY3U(ret, ==, len);
  62
  63         VERIFY0(wcsncasecmp(a, a, len));
  64         VERIFY0(wcsncasecmp(a, b, len));
  65
  66         ret = mbstowcs(b, caps, len);
  67         VERIFY3U(ret, ==, len);
  68         VERIFY0(wcsncasecmp(a, b, len));
  69
  70         ret = mbstowcs(b, less, len);
  71         VERIFY3U(ret, ==, len);
  72         VERIFY3S(wcsncasecmp(a, b, len), >, 0);
  73
  74         ret = mbstowcs(b, more, len);
  75         VERIFY3U(ret, ==, len);
  76         VERIFY3S(wcsncasecmp(a, b, len), <, 0);
  77
  78         ret = mbstowcs(a, caps, len);
  79         VERIFY3U(ret, ==, len);
  80         ret = mbstowcs(b, less, len);
  81         VERIFY3U(ret, ==, len);
  82         VERIFY3S(wcsncmp(a, b, len), <, 0);
  83         VERIFY3S(wcsncasecmp(a, b, len), >, 0);
  84
  85         VERIFY3S(wcsncasecmp(a, b, 0), ==, 0);
  86
  87         /*
  88          * This locale is also guaranteed by the test suite.
  89          */
  90         (void) setlocale(LC_ALL, "ja_JP.UTF-8");
  91         ret = mbstowcs(a, hikari, sizeof (a));
  92         VERIFY3U(ret, >, 0);
  93         ret = mbstowcs(b, hikari, sizeof (b));
  94         VERIFY3U(ret, >, 0);
  95         VERIFY3S(wcsncasecmp(a, b, 1), ==, 0);
  96
  97         ret = mbstowcs(b, awake, sizeof (b));
  98         VERIFY3U(ret, >, 0);
  99         VERIFY3S(wcsncasecmp(a, b, 1), !=, 0);
 100
 101         return (0);
 102 }