kc3-lang/gnulib/tests/test-avltree_oset.c

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• Hash : 32a72f45
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  Date : 2023-01-01T01:14:21
  

  maint: run 'make update-copyright'
  

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• tests/test-avltree_oset.c

• /* Test of ordered set data type implementation.
     Copyright (C) 2006-2023 Free Software Foundation, Inc.
     Written by Bruno Haible <bruno@clisp.org>, 2006.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  #include <config.h>
  
  #include "gl_avltree_oset.h"
  
  #include <stdlib.h>
  #include <string.h>
  
  #include "gl_array_oset.h"
  #include "macros.h"
  
  #include "test-oset-update.h"
  
  extern void gl_avltree_oset_check_invariants (gl_oset_t set);
  
  static const char *objects[30] =
    {
      "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o",
      "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "<", ">", "[", "]"
    };
  
  #define RANDOM(n) (rand () % (n))
  #define RANDOM_OBJECT() objects[RANDOM (SIZEOF (objects))]
  
  static void
  check_equals (gl_oset_t set1, gl_oset_t set2)
  {
    size_t n = gl_oset_size (set1);
    gl_oset_iterator_t iter1, iter2;
    const void *elt1;
    const void *elt2;
    size_t i;
  
    iter1 = gl_oset_iterator (set1);
    iter2 = gl_oset_iterator (set2);
    for (i = 0; i < n; i++)
      {
        ASSERT (gl_oset_iterator_next (&iter1, &elt1));
        ASSERT (gl_oset_iterator_next (&iter2, &elt2));
        ASSERT (elt1 == elt2);
      }
    ASSERT (!gl_oset_iterator_next (&iter1, &elt1));
    ASSERT (!gl_oset_iterator_next (&iter2, &elt2));
    gl_oset_iterator_free (&iter1);
    gl_oset_iterator_free (&iter2);
  }
  
  static void
  check_all (gl_oset_t set1, gl_oset_t set2)
  {
    gl_avltree_oset_check_invariants (set2);
    check_equals (set1, set2);
  }
  
  static bool
  is_at_least (const void *elt, const void *threshold)
  {
    return strcmp ((const char *) elt, (const char *) threshold) >= 0;
  }
  
  int
  main (int argc, char *argv[])
  {
    gl_oset_t set1, set2;
  
    /* Allow the user to provide a non-default random seed on the command line.  */
    if (argc > 1)
      srand (atoi (argv[1]));
  
    {
      size_t initial_size = RANDOM (20);
      size_t i;
      unsigned int repeat;
  
      /* Create set1.  */
      set1 = gl_oset_nx_create_empty (GL_ARRAY_OSET, (gl_setelement_compar_fn) strcmp, NULL);
      ASSERT (set1 != NULL);
  
      /* Create set2.  */
      set2 = gl_oset_nx_create_empty (GL_AVLTREE_OSET, (gl_setelement_compar_fn) strcmp, NULL);
      ASSERT (set2 != NULL);
  
      check_all (set1, set2);
  
      /* Initialize them.  */
      for (i = 0; i < initial_size; i++)
        {
          const char *obj = RANDOM_OBJECT ();
          ASSERT (gl_oset_nx_add (set1, obj) == gl_oset_nx_add (set2, obj));
          check_all (set1, set2);
        }
  
      for (repeat = 0; repeat < 100000; repeat++)
        {
          unsigned int operation = RANDOM (4);
          switch (operation)
            {
            case 0:
              {
                const char *obj = RANDOM_OBJECT ();
                ASSERT (gl_oset_search (set1, obj) == gl_oset_search (set2, obj));
              }
              break;
            case 1:
              {
                const char *obj = RANDOM_OBJECT ();
                ASSERT (gl_oset_nx_add (set1, obj) == gl_oset_nx_add (set2, obj));
              }
              break;
            case 2:
              {
                const char *obj = RANDOM_OBJECT ();
                ASSERT (gl_oset_remove (set1, obj) == gl_oset_remove (set2, obj));
              }
              break;
            case 3:
              {
                const char *obj = RANDOM_OBJECT ();
                gl_oset_iterator_t iter1 = gl_oset_iterator_atleast (set1, is_at_least, obj);
                gl_oset_iterator_t iter2 = gl_oset_iterator_atleast (set2, is_at_least, obj);
                const void *elt1;
                const void *elt2;
                /* Check the first two values that the iterator produces.
                   Checking them all would make this part of the test dominate the
                   run time of the test.  */
                bool havenext1 = gl_oset_iterator_next (&iter1, &elt1);
                bool havenext2 = gl_oset_iterator_next (&iter2, &elt2);
                ASSERT (havenext1 == havenext2);
                if (havenext1)
                  {
                    ASSERT (elt1 == elt2);
                    havenext1 = gl_oset_iterator_next (&iter1, &elt1);
                    havenext2 = gl_oset_iterator_next (&iter2, &elt2);
                    ASSERT (havenext1 == havenext2);
                    if (havenext1)
                      ASSERT (elt1 == elt2);
                  }
                gl_oset_iterator_free (&iter1);
                gl_oset_iterator_free (&iter2);
              }
              break;
            }
          check_all (set1, set2);
        }
  
      gl_oset_free (set1);
      gl_oset_free (set2);
    }
  
    test_update (GL_AVLTREE_OSET);
  
    return 0;
  }
  

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