libs/dbprim/tests/t_le_init.c

   1 /*
   2 ** Copyright (C) 2002 by Kevin L. Mitchell <klmitch@mit.edu>
   3 **
   4 ** This library is free software; you can redistribute it and/or
   5 ** modify it under the terms of the GNU Library General Public
   6 ** License as published by the Free Software Foundation; either
   7 ** version 2 of the License, or (at your option) any later version.
   8 **
   9 ** This library 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 GNU
  12 ** Library General Public License for more details.
  13 **
  14 ** You should have received a copy of the GNU Library General Public
  15 ** License along with this library; if not, write to the Free
  16 ** Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  17 ** MA 02111-1307, USA
  18 **
  19 ** @(#)$Id: t_le_init.c,v 1.1 2003/03/07 02:36:11 klmitch Exp $
  20 */
  21 #include <stdio.h>
  22
  23 #include "dbprim.h"
  24
  25 #define OBJECT  (void *)0x91827364
  26 #define DEADINT 0xdeadbeef
  27 #define DEADPTR (void *)0xdeadbeef
  28
  29 static void
  30 check_init(link_elem_t *elem, char *how)
  31 {
  32   if (elem->le_magic != LINK_ELEM_MAGIC) /* Verify magic was set */
  33     printf("FAIL/%s_magic:Initialization failed to set magic number\n", how);
  34   else
  35     printf("PASS/%s_magic:Initialization set magic number properly\n", how);
  36
  37   if (elem->le_next != 0) /* verify next was set properly */
  38     printf("FAIL/%s_next:Initialization failed to clear next\n", how);
  39   else
  40     printf("PASS/%s_next:Initialization set next to 0\n", how);
  41
  42   if (elem->le_prev != 0) /* verify prev was set properly */
  43     printf("FAIL/%s_prev:Initialization failed to clear prev\n", how);
  44   else
  45     printf("PASS/%s_prev:Initialization set prev to 0\n", how);
  46
  47   if (elem->le_object != OBJECT) /* verify object was set properly */
  48     printf("FAIL/%s_object:Initialization failed to set object\n", how);
  49   else
  50     printf("PASS/%s_object:Initialization set object properly\n", how);
  51
  52   if (elem->le_head != 0) /* verify head was set properly */
  53     printf("FAIL/%s_head:Initialization failed to clear head\n", how);
  54   else
  55     printf("PASS/%s_head:Initialization set head to 0\n", how);
  56
  57   if (elem->le_flags != 0) /* verify flags were set properly */
  58     printf("FAIL/%s_flags:Initialization failed to clear flags\n", how);
  59   else
  60     printf("PASS/%s_flags:Initialization set flags to 0\n", how);
  61 }
  62
  63 int
  64 main(int argc, char **argv)
  65 {
  66   unsigned long errcode;
  67   link_elem_t elem = LINK_ELEM_INIT(OBJECT);
  68
  69   /* Check that the static initializer produces a passable structure */
  70   check_init(&elem, "le_static");
  71
  72   /* now, check what le_init does with bad arguments */
  73   if ((errcode = le_init(0, 0)) == DB_ERR_BADARGS)
  74     printf("PASS/le_init_nothing:le_init(0, 0) returns "
  75            "DB_ERR_BADARGS\n");
  76   else
  77     printf("FAIL/le_init_nothing:le_init(0, 0) returned "
  78            "%lu instead of DB_ERR_BADARGS\n", errcode);
  79   if ((errcode = le_init(0, OBJECT)) == DB_ERR_BADARGS)
  80     printf("PASS/le_init_objectonly:le_init(0, OBJECT) returns "
  81            "DB_ERR_BADARGS\n");
  82   else
  83     printf("FAIL/le_init_objectonly:le_init(0, OBJECT) returned "
  84            "%lu instead of DB_ERR_BADARGS\n", errcode);
  85   if ((errcode = le_init(&elem, 0)) == DB_ERR_BADARGS)
  86     printf("PASS/le_init_elemonly:le_init(&elem, 0) returns "
  87            "DB_ERR_BADARGS\n");
  88   else
  89     printf("FAIL/le_init_elemonly:le_init(&elem, 0) returned "
  90            "%lu instead of DB_ERR_BADARGS\n", errcode);
  91
  92   /* Scramble the structure */
  93   elem.le_magic = DEADINT;
  94   elem.le_next = DEADPTR;
  95   elem.le_prev = DEADPTR;
  96   elem.le_object = DEADPTR;
  97   elem.le_head = DEADPTR;
  98   elem.le_flags = DEADINT;
  99
 100   /* Now try to initialize our structure and see what happens */
 101   if ((errcode = le_init(&elem, OBJECT))) {
 102     printf("FAIL/le_dynamic:le_init(&elem) returned failure (%lu)\n",
 103            errcode);
 104     return 0;
 105   } else
 106     printf("PASS/le_dynamic:le_init(&elem) returned success\n");
 107
 108   /* Finally, verify initialization */
 109   check_init(&elem, "le_dynamic");
 110
 111   return 0;
 112 }