tests/test-hard-locale.c

   1 /* Test of determination whether a locale is different from the "C" locale.
   2    Copyright (C) 2019-2020 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>, 2019.  */
  18
  19 #include <config.h>
  20
  21 #include "hard-locale.h"
  22
  23 #include <locale.h>
  24 #include <stdbool.h>
  25 #include <stdio.h>
  26 #include <string.h>
  27
  28 /* True if all locale names are accepted and all locales are trivial.
  29    This is the case e.g. on OpenBSD 3.8.  */
  30 static bool all_trivial;
  31
  32 static int
  33 test_one (const char *name, int failure_bitmask)
  34 {
  35   if (setlocale (LC_ALL, name) != NULL)
  36     {
  37       bool expected;
  38
  39       /* musl libc has special code for the C.UTF-8 locale; other than that,
  40          all locale names are accepted and all locales are trivial.
  41          OpenBSD returns the locale name that was set, but we don't know how it
  42          behaves under the hood.  Likewise for Haiku.  */
  43 #if defined MUSL_LIBC || defined __OpenBSD__ || defined __HAIKU__
  44       expected = true;
  45 #else
  46       expected = !all_trivial;
  47 #endif
  48       if (hard_locale (LC_CTYPE) != expected)
  49         {
  50           if (expected)
  51             fprintf (stderr, "Unexpected: The category LC_CTYPE of the locale '%s' is not equivalent to C or POSIX.\n",
  52                      name);
  53           else
  54             fprintf (stderr, "Unexpected: The category LC_CTYPE of the locale '%s' is equivalent to C or POSIX.\n",
  55                      name);
  56           return failure_bitmask;
  57         }
  58
  59       /* On NetBSD 7.0, some locales such as de_DE.ISO8859-1 and de_DE.UTF-8
  60          have the LC_COLLATE category set to "C".
  61          Similarly, on musl libc, with the C.UTF-8 locale.  */
  62 #if defined __NetBSD__
  63       expected = false;
  64 #elif defined MUSL_LIBC
  65       expected = strcmp (name, "C.UTF-8") != 0;
  66 #elif (defined __OpenBSD__ && HAVE_DUPLOCALE) || defined __HAIKU__ /* OpenBSD >= 6.2, Haiku */
  67       expected = true;
  68 #else
  69       expected = !all_trivial;
  70 #endif
  71       if (hard_locale (LC_COLLATE) != expected)
  72         {
  73           if (expected)
  74             fprintf (stderr, "Unexpected: The category LC_COLLATE of the locale '%s' is not equivalent to C or POSIX.\n",
  75                      name);
  76           else
  77             fprintf (stderr, "Unexpected: The category LC_COLLATE of the locale '%s' is equivalent to C or POSIX.\n",
  78                      name);
  79           return failure_bitmask;
  80         }
  81     }
  82   return 0;
  83 }
  84
  85 int
  86 main ()
  87 {
  88   int fail = 0;
  89
  90   /* The initial locale is the "C" or "POSIX" locale.  */
  91   if (hard_locale (LC_CTYPE) || hard_locale (LC_COLLATE))
  92     {
  93       fprintf (stderr, "The initial locale should not be hard!\n");
  94       fail |= 1;
  95     }
  96
  97   all_trivial = (setlocale (LC_ALL, "foobar") != NULL);
  98
  99   fail |= test_one ("de", 2);
 100   fail |= test_one ("de_DE", 4);
 101   fail |= test_one ("de_DE.ISO8859-1", 8);
 102   fail |= test_one ("de_DE.iso88591", 8);
 103   fail |= test_one ("de_DE.UTF-8", 16);
 104   fail |= test_one ("de_DE.utf8", 16);
 105   fail |= test_one ("german", 32);
 106   fail |= test_one ("C.UTF-8", 64);
 107
 108   return fail;
 109 }