root/maint/gnulib/tests/unistr/test-u16-uctomb.c

/* */

DEFINITIONS

1. main

   1 /* Test of u16_uctomb() function.
   2    Copyright (C) 2010-2021 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>, 2010.  */
  18 
  19 #include <config.h>
  20 
  21 #include "unistr.h"
  22 
  23 #include "macros.h"
  24 
  25 #define MAGIC 0xBADE
  26 
  27 int
  28 main ()
     /*  */
  29 {
  30   /* Test ISO 646 character, in particular the NUL character.  */
  31   {
  32     ucs4_t uc;
  33 
  34     for (uc = 0; uc < 0x80; uc++)
  35       {
  36         uint16_t buf[3] = { MAGIC, MAGIC, MAGIC };
  37         int ret;
  38 
  39         ret = u16_uctomb (buf, uc, 0);
  40         ASSERT (ret == -2);
  41         ASSERT (buf[0] == MAGIC);
  42 
  43         ret = u16_uctomb (buf, uc, 1);
  44         ASSERT (ret == 1);
  45         ASSERT (buf[0] == uc);
  46         ASSERT (buf[1] == MAGIC);
  47       }
  48   }
  49 
  50   /* Test BMP character.  */
  51   {
  52     ucs4_t uc = 0x20AC;
  53     uint16_t buf[3] = { MAGIC, MAGIC, MAGIC };
  54     int ret;
  55 
  56     ret = u16_uctomb (buf, uc, 0);
  57     ASSERT (ret == -2);
  58     ASSERT (buf[0] == MAGIC);
  59 
  60     ret = u16_uctomb (buf, uc, 1);
  61     ASSERT (ret == 1);
  62     ASSERT (buf[0] == uc);
  63     ASSERT (buf[1] == MAGIC);
  64   }
  65 
  66   /* Test non-BMP character.  */
  67   {
  68     ucs4_t uc = 0x10FFFD;
  69     uint16_t buf[3] = { MAGIC, MAGIC, MAGIC };
  70     int ret;
  71 
  72     ret = u16_uctomb (buf, uc, 0);
  73     ASSERT (ret == -2);
  74     ASSERT (buf[0] == MAGIC);
  75 
  76     ret = u16_uctomb (buf, uc, 1);
  77     ASSERT (ret == -2);
  78     ASSERT (buf[0] == MAGIC);
  79 
  80     ret = u16_uctomb (buf, uc, 2);
  81     ASSERT (ret == 2);
  82     ASSERT (buf[0] == 0xDBFF);
  83     ASSERT (buf[1] == 0xDFFD);
  84     ASSERT (buf[2] == MAGIC);
  85   }
  86 
  87   /* Test invalid characters.  */
  88   {
  89     ucs4_t invalid[] = { 0x110000, 0xD800, 0xDBFF, 0xDC00, 0xDFFF };
  90     uint16_t buf[3] = { MAGIC, MAGIC, MAGIC };
  91     size_t i;
  92 
  93     for (i = 0; i < SIZEOF (invalid); i++)
  94       {
  95         ucs4_t uc = invalid[i];
  96         int n;
  97 
  98         for (n = 0; n <= 2; n++)
  99           {
 100             int ret = u16_uctomb (buf, uc, n);
 101             ASSERT (ret == -1);
 102             ASSERT (buf[0] == MAGIC);
 103             ASSERT (buf[1] == MAGIC);
 104             ASSERT (buf[2] == MAGIC);
 105           }
 106       }
 107   }
 108 
 109   return 0;
 110 }

/* */