tests/unistr/test-u32-mblen.c

   1 /* Test of u32_mblen() function.
   2    Copyright (C) 2010-2020 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>, 2010.  */
  18
  19 #include <config.h>
  20
  21 #include "unistr.h"
  22
  23 #include "macros.h"
  24
  25 int
  26 main ()
  27 {
  28   int ret;
  29
  30   /* Test zero-length input.  */
  31   {
  32     static const uint32_t input[] = { 0 };
  33     ret = u32_mblen (input, 0);
  34     ASSERT (ret == -1);
  35   }
  36
  37   /* Test NUL unit input.  */
  38   {
  39     static const uint32_t input[] = { 0 };
  40     ret = u32_mblen (input, 1);
  41     ASSERT (ret == 0);
  42   }
  43
  44   /* Test ISO 646 unit input.  */
  45   {
  46     ucs4_t c;
  47     uint32_t buf[1];
  48
  49     for (c = 1; c < 0x80; c++)
  50       {
  51         buf[0] = c;
  52         ret = u32_mblen (buf, 1);
  53         ASSERT (ret == 1);
  54       }
  55   }
  56
  57   /* Test BMP unit input.  */
  58   {
  59     static const uint32_t input[] = { 0x20AC };
  60     ret = u32_mblen (input, 1);
  61     ASSERT (ret == 1);
  62   }
  63
  64   /* Test non-BMP unit input.  */
  65   {
  66     static const uint32_t input[] = { 0x1D51F };
  67     ret = u32_mblen (input, 1);
  68     ASSERT (ret == 1);
  69   }
  70
  71   /* Test incomplete/invalid 1-unit input.  */
  72   {
  73     static const uint32_t input[] = { 0x340000 };
  74     ret = u32_mblen (input, 1);
  75     ASSERT (ret == -1);
  76   }
  77
  78   return 0;
  79 }