root/maint/gnulib/tests/unistdio/test-u8-vasnprintf3.c

/* */

DEFINITIONS

1. test_function
2. my_asnprintf
3. test_vasnprintf
4. main

   1 /* Test of u8_vasnprintf() function in an UTF-8 locale.
   2    Copyright (C) 2007-2021 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 "unistdio.h"
  22 
  23 #include <locale.h>
  24 #include <stdarg.h>
  25 #include <stdint.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 
  29 #include "unistr.h"
  30 #include "macros.h"
  31 
  32 static void
  33 test_function (uint8_t * (*my_asnprintf) (uint8_t *, size_t *, const char *, ...))
     /*  */
  34 {
  35   /* Test the support of the 's' conversion specifier for strings.  */
  36 
  37   {
  38     const char *locale_string = "\303\204rger"; /* Ärger */
  39     {
  40       size_t length;
  41       uint8_t *result =
  42         my_asnprintf (NULL, &length, "%s %d", locale_string, 33, 44, 55);
  43       static const uint8_t expected[] = "\303\204rger 33";
  44       ASSERT (result != NULL);
  45       ASSERT (u8_strcmp (result, expected) == 0);
  46       ASSERT (length == u8_strlen (result));
  47       free (result);
  48     }
  49     { /* Width.  */
  50       size_t length;
  51       uint8_t *result =
  52         my_asnprintf (NULL, &length, "%10s %d", locale_string, 33, 44, 55);
  53       static const uint8_t expected[] = "     \303\204rger 33";
  54       ASSERT (result != NULL);
  55       ASSERT (u8_strcmp (result, expected) == 0);
  56       ASSERT (length == u8_strlen (result));
  57       free (result);
  58     }
  59     { /* FLAG_LEFT.  */
  60       size_t length;
  61       uint8_t *result =
  62         my_asnprintf (NULL, &length, "%-10s %d", locale_string, 33, 44, 55);
  63       static const uint8_t expected[] = "\303\204rger      33";
  64       ASSERT (result != NULL);
  65       ASSERT (u8_strcmp (result, expected) == 0);
  66       ASSERT (length == u8_strlen (result));
  67       free (result);
  68     }
  69     { /* FLAG_ZERO: no effect.  */
  70       size_t length;
  71       uint8_t *result =
  72         my_asnprintf (NULL, &length, "%010s %d", locale_string, 33, 44, 55);
  73       static const uint8_t expected[] = "     \303\204rger 33";
  74       ASSERT (result != NULL);
  75       ASSERT (u8_strcmp (result, expected) == 0);
  76       ASSERT (length == u8_strlen (result));
  77       free (result);
  78     }
  79   }
  80 }
  81 
  82 static uint8_t *
  83 my_asnprintf (uint8_t *resultbuf, size_t *lengthp, const char *format, ...)
     /*  */
  84 {
  85   va_list args;
  86   uint8_t *ret;
  87 
  88   va_start (args, format);
  89   ret = u8_vasnprintf (resultbuf, lengthp, format, args);
  90   va_end (args);
  91   return ret;
  92 }
  93 
  94 static void
  95 test_vasnprintf ()
     /*  */
  96 {
  97   test_function (my_asnprintf);
  98 }
  99 
 100 int
 101 main (int argc, char *argv[])
     /*  */
 102 {
 103   /* configure should already have checked that the locale is supported.  */
 104   if (setlocale (LC_ALL, "") == NULL)
 105     return 1;
 106 
 107   test_vasnprintf ();
 108   return 0;
 109 }

/* */