tests/test-xstring-desc.c

   1 /* Test of string descriptors.
   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 "xstring-desc.h"
  22
  23 #include <stdlib.h>
  24 #include <string.h>
  25
  26 #include "macros.h"
  27
  28 int
  29 main (void)
  30 {
  31   string_desc_t s0 = string_desc_new_empty ();
  32   string_desc_t s1 = string_desc_from_c ("Hello world!");
  33   string_desc_t s2 = string_desc_new_addr (21, "The\0quick\0brown\0\0fox");
  34
  35   /* Test xstring_desc_new.  */
  36   string_desc_t s4 = xstring_desc_new (5);
  37   string_desc_set_char_at (s4, 0, 'H');
  38   string_desc_set_char_at (s4, 4, 'o');
  39   string_desc_set_char_at (s4, 1, 'e');
  40   string_desc_fill (s4, 2, 4, 'l');
  41   ASSERT (string_desc_length (s4) == 5);
  42   ASSERT (string_desc_startswith (s1, s4));
  43
  44   /* Test xstring_desc_new_filled.  */
  45   string_desc_t s5 = xstring_desc_new_filled (5, 'l');
  46   string_desc_set_char_at (s5, 0, 'H');
  47   string_desc_set_char_at (s5, 4, 'o');
  48   string_desc_set_char_at (s5, 1, 'e');
  49   ASSERT (string_desc_length (s5) == 5);
  50   ASSERT (string_desc_startswith (s1, s5));
  51
  52   /* Test xstring_desc_copy.  */
  53   {
  54     string_desc_t s6 = xstring_desc_copy (s0);
  55     ASSERT (string_desc_is_empty (s6));
  56     string_desc_free (s6);
  57   }
  58   {
  59     string_desc_t s6 = xstring_desc_copy (s2);
  60     ASSERT (string_desc_equals (s6, s2));
  61     string_desc_free (s6);
  62   }
  63
  64   /* Test xstring_desc_concat.  */
  65   {
  66     string_desc_t s8 =
  67       xstring_desc_concat (3, string_desc_new_addr (10, "The\0quick"),
  68                               string_desc_new_addr (7, "brown\0"),
  69                               string_desc_new_addr (4, "fox"),
  70                               string_desc_new_addr (7, "unused"));
  71     ASSERT (string_desc_equals (s8, s2));
  72     string_desc_free (s8);
  73   }
  74
  75   /* Test xstring_desc_c.  */
  76   {
  77     char *ptr = xstring_desc_c (s2);
  78     ASSERT (ptr != NULL);
  79     ASSERT (memcmp (ptr, "The\0quick\0brown\0\0fox\0", 22) == 0);
  80     free (ptr);
  81   }
  82
  83   return test_exit_status;
  84 }