root/maint/gnulib/tests/unistdio/test-u16-vasnprintf3.c

/* */

DEFINITIONS

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

   1 /* Test of u16_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 (uint16_t * (*my_asnprintf) (uint16_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       uint16_t *result =
  42         my_asnprintf (NULL, &length, "%s %d", locale_string, 33, 44, 55);
  43       static const uint16_t expected[] =
  44         { 0x00c4, 'r', 'g', 'e', 'r', ' ', '3', '3', 0 };
  45       ASSERT (result != NULL);
  46       ASSERT (u16_strcmp (result, expected) == 0);
  47       ASSERT (length == u16_strlen (result));
  48       free (result);
  49     }
  50     { /* Width.  */
  51       size_t length;
  52       uint16_t *result =
  53         my_asnprintf (NULL, &length, "%10s %d", locale_string, 33, 44, 55);
  54       static const uint16_t expected[] =
  55         { ' ', ' ', ' ', ' ', ' ', 0x00c4, 'r', 'g', 'e', 'r',
  56           ' ', '3', '3', 0
  57         };
  58       ASSERT (result != NULL);
  59       ASSERT (u16_strcmp (result, expected) == 0);
  60       ASSERT (length == u16_strlen (result));
  61       free (result);
  62     }
  63     { /* FLAG_LEFT.  */
  64       size_t length;
  65       uint16_t *result =
  66         my_asnprintf (NULL, &length, "%-10s %d", locale_string, 33, 44, 55);
  67       static const uint16_t expected[] =
  68         { 0x00c4, 'r', 'g', 'e', 'r', ' ', ' ', ' ', ' ', ' ',
  69           ' ', '3', '3', 0
  70         };
  71       ASSERT (result != NULL);
  72       ASSERT (u16_strcmp (result, expected) == 0);
  73       ASSERT (length == u16_strlen (result));
  74       free (result);
  75     }
  76     { /* FLAG_ZERO: no effect.  */
  77       size_t length;
  78       uint16_t *result =
  79         my_asnprintf (NULL, &length, "%010s %d", locale_string, 33, 44, 55);
  80       static const uint16_t expected[] =
  81         { ' ', ' ', ' ', ' ', ' ', 0x00c4, 'r', 'g', 'e', 'r',
  82           ' ', '3', '3', 0
  83         };
  84       ASSERT (result != NULL);
  85       ASSERT (u16_strcmp (result, expected) == 0);
  86       ASSERT (length == u16_strlen (result));
  87       free (result);
  88     }
  89   }
  90 }
  91 
  92 static uint16_t *
  93 my_asnprintf (uint16_t *resultbuf, size_t *lengthp, const char *format, ...)
     /*  */
  94 {
  95   va_list args;
  96   uint16_t *ret;
  97 
  98   va_start (args, format);
  99   ret = u16_vasnprintf (resultbuf, lengthp, format, args);
 100   va_end (args);
 101   return ret;
 102 }
 103 
 104 static void
 105 test_vasnprintf ()
     /*  */
 106 {
 107   test_function (my_asnprintf);
 108 }
 109 
 110 int
 111 main (int argc, char *argv[])
     /*  */
 112 {
 113   /* configure should already have checked that the locale is supported.  */
 114   if (setlocale (LC_ALL, "") == NULL)
 115     return 1;
 116 
 117   test_vasnprintf ();
 118   return 0;
 119 }

/* */