tests/test-di-set.c

   1 /* Test the di-set module.
   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 Jim Meyering.  */
  18
  19 #include <config.h>
  20
  21 #include "di-set.h"
  22
  23 #include "macros.h"
  24
  25 int
  26 main (void)
  27 {
  28   struct di_set *dis = di_set_alloc ();
  29   ASSERT (dis);
  30   di_set_free (dis); /* free with dis->ino_map still being NULL */
  31   dis = di_set_alloc ();
  32   ASSERT (dis);
  33
  34   ASSERT (di_set_lookup (dis, 2, 5) == 0); /* initial lookup fails */
  35   ASSERT (di_set_insert (dis, 2, 5) == 1); /* first insertion succeeds */
  36   ASSERT (di_set_insert (dis, 2, 5) == 0); /* duplicate fails */
  37   ASSERT (di_set_insert (dis, 3, 5) == 1); /* diff dev, duplicate inode is ok */
  38   ASSERT (di_set_insert (dis, 2, 8) == 1); /* same dev, different inode is ok */
  39   ASSERT (di_set_lookup (dis, 2, 5) == 1); /* now, the lookup succeeds */
  40
  41   /* very large (or negative) inode number */
  42   ASSERT (di_set_insert (dis, 5, (ino_t) -1) == 1);
  43   ASSERT (di_set_insert (dis, 5, (ino_t) -1) == 0); /* dup */
  44
  45   {
  46     unsigned int i;
  47     for (i = 0; i < 3000; i++)
  48       ASSERT (di_set_insert (dis, 9, i) == 1);
  49     for (i = 0; i < 3000; i++)
  50       ASSERT (di_set_insert (dis, 9, i) == 0); /* duplicate fails */
  51   }
  52
  53   di_set_free (dis);
  54
  55   return 0;
  56 }