tests/test-array_set.c

   1 /* Test of set data type implementation.
   2    Copyright (C) 2006-2024 Free Software Foundation, Inc.
   3    Written by Bruno Haible <bruno@clisp.org>, 2018.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation, either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  17
  18 #include <config.h>
  19
  20 #include "gl_array_set.h"
  21
  22 #include <stdlib.h>
  23 #include <string.h>
  24
  25 #include "gl_xoset.h"
  26 #include "gl_array_oset.h"
  27 #include "xalloc.h"
  28 #include "macros.h"
  29
  30 static const char *objects[30] =
  31   {
  32     "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o",
  33     "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "<", ">", "[", "]"
  34   };
  35
  36 #define RANDOM(n) (rand () % (n))
  37 #define RANDOM_OBJECT() objects[RANDOM (SIZEOF (objects))]
  38
  39 static int
  40 cmp_objects_in_array (const void *objptr1, const void *objptr2)
  41 {
  42   const void *obj1 = *(const void * const *)objptr1;
  43   const void *obj2 = *(const void * const *)objptr2;
  44   return strcmp ((const char *) obj1, (const char *) obj2);
  45 }
  46
  47 static void
  48 check_equals (gl_set_t set1, gl_oset_t set2)
  49 {
  50   size_t n = gl_set_size (set1);
  51   const void **elements_of_set1 = XNMALLOC (n, const void *);
  52   const void **elements_of_set2 = XNMALLOC (n, const void *);
  53
  54   gl_set_iterator_t iter1;
  55   gl_oset_iterator_t iter2;
  56   const void *elt1;
  57   const void *elt2;
  58   size_t i;
  59
  60   iter1 = gl_set_iterator (set1);
  61   iter2 = gl_oset_iterator (set2);
  62   for (i = 0; i < n; i++)
  63     {
  64       ASSERT (gl_set_iterator_next (&iter1, &elt1));
  65       ASSERT (gl_oset_iterator_next (&iter2, &elt2));
  66       elements_of_set1[i] = elt1;
  67       elements_of_set2[i] = elt2;
  68     }
  69   ASSERT (!gl_set_iterator_next (&iter1, &elt1));
  70   ASSERT (!gl_oset_iterator_next (&iter2, &elt2));
  71   gl_set_iterator_free (&iter1);
  72   gl_oset_iterator_free (&iter2);
  73
  74   if (n > 0)
  75     {
  76       qsort (elements_of_set1, n, sizeof (const void *), cmp_objects_in_array);
  77       qsort (elements_of_set2, n, sizeof (const void *), cmp_objects_in_array);
  78     }
  79   for (i = 0; i < n; i++)
  80     ASSERT (elements_of_set1[i] == elements_of_set2[i]);
  81   free (elements_of_set2);
  82   free (elements_of_set1);
  83 }
  84
  85 static void
  86 check_all (gl_set_t set1, gl_oset_t set2)
  87 {
  88   check_equals (set1, set2);
  89 }
  90
  91 int
  92 main (int argc, char *argv[])
  93 {
  94   gl_set_t set1;
  95   gl_oset_t set2;
  96
  97   /* Allow the user to provide a non-default random seed on the command line.  */
  98   if (argc > 1)
  99     srand (atoi (argv[1]));
 100
 101   {
 102     size_t initial_size = RANDOM (20);
 103     size_t i;
 104     unsigned int repeat;
 105
 106     /* Create set1.  */
 107     set1 = gl_set_nx_create_empty (GL_ARRAY_SET, NULL, NULL, NULL);
 108     ASSERT (set1 != NULL);
 109
 110     /* Create set2.  */
 111     set2 = gl_oset_create_empty (GL_ARRAY_OSET, (gl_setelement_compar_fn) strcmp, NULL);
 112
 113     check_all (set1, set2);
 114
 115     /* Initialize them.  */
 116     for (i = 0; i < initial_size; i++)
 117       {
 118         const char *obj = RANDOM_OBJECT ();
 119         ASSERT (gl_set_nx_add (set1, obj) == gl_oset_add (set2, obj));
 120         check_all (set1, set2);
 121       }
 122
 123     for (repeat = 0; repeat < 100000; repeat++)
 124       {
 125         unsigned int operation = RANDOM (3);
 126         switch (operation)
 127           {
 128           case 0:
 129             {
 130               const char *obj = RANDOM_OBJECT ();
 131               ASSERT (gl_set_search (set1, obj) == gl_oset_search (set2, obj));
 132             }
 133             break;
 134           case 1:
 135             {
 136               const char *obj = RANDOM_OBJECT ();
 137               ASSERT (gl_set_nx_add (set1, obj) == gl_oset_add (set2, obj));
 138             }
 139             break;
 140           case 2:
 141             {
 142               const char *obj = RANDOM_OBJECT ();
 143               ASSERT (gl_set_remove (set1, obj) == gl_oset_remove (set2, obj));
 144             }
 145             break;
 146           }
 147         check_all (set1, set2);
 148       }
 149
 150     gl_set_free (set1);
 151     gl_oset_free (set2);
 152   }
 153
 154   return test_exit_status;
 155 }