tests/test-mbfile.c

   1 /* Test of multibyte character I/O.
   2    Copyright (C) 2023-2024 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>, 2023.  */
  18
  19 #include <config.h>
  20
  21 #include "mbfile.h"
  22
  23 #include <locale.h>
  24 #include <string.h>
  25
  26 #include "localcharset.h"
  27 #include "macros.h"
  28
  29 int
  30 main ()
  31 {
  32   /* Switch to an UTF-8 locale.  */
  33   if (!(setlocale (LC_ALL, "en_US.UTF-8") != NULL
  34         /* Check whether it's really an UTF-8 locale.
  35            On native Windows, this setlocale call succeeds but the encoding
  36            of this locale is CP1252, not UTF-8.  */
  37         && strcmp (locale_charset (), "UTF-8") == 0))
  38     {
  39       fprintf (stderr, "Skipping test: English Unicode locale is not installed\n");
  40       return 77;
  41     }
  42
  43   mb_file_t mbstdin;
  44   mbf_init (mbstdin, stdin);
  45   /* The input consists of 4 UTF-8 characters:
  46      '$', U+00A5, U+20AC, U+0001F403.  */
  47   mbf_char_t next;
  48
  49   mbf_getc (next, mbstdin);
  50   ASSERT (!mb_iseof (next));
  51   ASSERT (mb_len (next) == 1);
  52   ASSERT (mb_iseq (next, 0x0024));
  53
  54   mbf_getc (next, mbstdin);
  55   ASSERT (!mb_iseof (next));
  56   ASSERT (mb_len (next) == 2);
  57   ASSERT (mb_iseq (next, 0x00A5));
  58
  59   mbf_getc (next, mbstdin);
  60   ASSERT (!mb_iseof (next));
  61   ASSERT (mb_len (next) == 3);
  62   ASSERT (mb_iseq (next, 0x20AC));
  63
  64   mbf_getc (next, mbstdin);
  65   ASSERT (!mb_iseof (next));
  66   ASSERT (mb_len (next) == 4);
  67   ASSERT (mb_iseq (next, 0x1F403));
  68
  69   mbf_getc (next, mbstdin);
  70   ASSERT (mb_iseof (next));
  71
  72   return test_exit_status;
  73 }