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/* |
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** Copyright (C) 2002 by Kevin L. Mitchell <klmitch@mit.edu> |
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** |
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** This library is free software; you can redistribute it and/or |
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** modify it under the terms of the GNU Library General Public |
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** License as published by the Free Software Foundation; either |
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** version 2 of the License, or (at your option) any later version. |
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** |
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** This library is distributed in the hope that it will be useful, |
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** but WITHOUT ANY WARRANTY; without even the implied warranty of |
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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** Library General Public License for more details. |
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** |
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** You should have received a copy of the GNU Library General Public |
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** License along with this library; if not, write to the Free |
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** Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
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** MA 02111-1307, USA |
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** |
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** @(#)$Id: t_ll_remove.c,v 1.2 2003/06/12 01:10:11 klmitch Exp $ |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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|
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#include "dbprim.h" |
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|
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#define OBJECT0 (void *)0x01234567 |
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#define OBJECT1 (void *)0x12345678 |
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#define OBJECT2 (void *)0x23456789 |
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#define OBJECT3 (void *)0x3456789a |
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#define OBJECT4 (void *)0x456789ab |
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#define OBJECT5 (void *)0x56789abc |
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#define OBJECT6 (void *)0x6789abcd |
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#define OBJECT7 (void *)0x789abcde |
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|
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#define OBJECT8 (void *)0x89abcdef |
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|
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#define OBJECT9 (void *)0x9abcdef0 |
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|
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#define DEADINT 0xdeadbeef |
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#define DEADPTR (void *)0xdeadbeef |
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|
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/* Check return value of add operation and report PASS/FAIL */ |
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static void |
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check_result(unsigned long result, unsigned long expected, char *test, |
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char *info, int die) |
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{ |
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if (result != expected) { |
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printf("FAIL/%s:%s incorrectly returned %lu (expected %lu)\n", test, info, |
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result, expected); |
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if (die) |
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exit(0); |
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} else |
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printf("PASS/%s:%s correctly returned %lu\n", test, info, result); |
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} |
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|
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/* Check that a list head matches expectations */ |
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static void |
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check_list(link_head_t *list, unsigned int count, link_elem_t *head, |
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link_elem_t *tail, int idx, char *test, char *info) |
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{ |
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if (list->lh_count != count) { /* Check count first */ |
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printf("FAIL/%s_%d_count:%s: Count mismatch\n", test, idx, info); |
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exit(0); |
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} else |
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printf("PASS/%s_%d_count:%s: Counts match\n", test, idx, info); |
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|
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if (list->lh_first != head) { /* then check the head pointer */ |
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printf("FAIL/%s_%d_first:%s: Head pointer mismatch\n", test, idx, info); |
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exit(0); |
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} else |
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printf("PASS/%s_%d_first:%s: Head pointers match\n", test, idx, info); |
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|
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if (list->lh_last != tail) { /* finally check the tail pointer */ |
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printf("FAIL/%s_%d_last:%s: Tail pointer mismatch\n", test, idx, info); |
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exit(0); |
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} else |
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printf("PASS/%s_%d_last:%s: Tail pointers match\n", test, idx, info); |
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} |
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|
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/* Check that a list element matches expectations */ |
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static void |
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check_elem(link_elem_t *elem, link_elem_t *prev, link_elem_t *next, |
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link_head_t *head, int l_idx, int e_idx, char *test, char *info) |
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{ |
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if (elem->le_next != next) { /* check next pointer first */ |
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printf("FAIL/%s_%d/%d_next:%s: Next pointer mismatch\n", test, l_idx, |
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e_idx, info); |
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exit(0); |
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} else |
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printf("PASS/%s_%d/%d_next:%s: Next pointers match\n", test, l_idx, e_idx, |
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info); |
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|
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if (elem->le_prev != prev) { /* then check prev pointer */ |
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printf("FAIL/%s_%d/%d_prev:%s: Prev pointer mismatch\n", test, l_idx, |
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e_idx, info); |
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exit(0); |
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} else |
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printf("PASS/%s_%d/%d_prev:%s: Prev pointers match\n", test, l_idx, e_idx, |
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info); |
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|
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if (elem->le_head != head) { /* finally check list head pointer */ |
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printf("FAIL/%s_%d/%d_head:%s: Head pointer mismatch\n", test, l_idx, |
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e_idx, info); |
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exit(0); |
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} else |
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printf("PASS/%s_%d/%d_head:%s: Head pointers match\n", test, l_idx, e_idx, |
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info); |
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} |
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|
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int |
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main(int argc, char **argv) |
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{ |
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int i; |
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link_head_t list[] = { /* some lists to operate on */ |
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LINK_HEAD_INIT(0), |
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LINK_HEAD_INIT(0), |
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{ DEADINT, DEADINT, DEADPTR, DEADPTR, 0 } /* list[2] is a bad list */ |
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}; |
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link_elem_t elem[] = { /* some elements to operate on */ |
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LINK_ELEM_INIT(OBJECT0), |
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LINK_ELEM_INIT(OBJECT1), |
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LINK_ELEM_INIT(OBJECT2), |
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LINK_ELEM_INIT(OBJECT3), |
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LINK_ELEM_INIT(OBJECT4), |
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LINK_ELEM_INIT(OBJECT5), |
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LINK_ELEM_INIT(OBJECT6), |
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LINK_ELEM_INIT(OBJECT7), |
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LINK_ELEM_INIT(OBJECT8), |
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LINK_ELEM_INIT(OBJECT9), |
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{ DEADINT, DEADPTR, DEADPTR, DEADPTR, DEADPTR, DEADINT } /* elem[10] */ |
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}; |
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|
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/* First, build the lists */ |
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for (i = 0; i < 8; i++) |
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if (ll_add(&list[0], &elem[i], LINK_LOC_TAIL, 0)) |
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return -1; /* failed to initialize test */ |
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|
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if (ll_add(&list[1], &elem[8], LINK_LOC_TAIL, 0)) |
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return -1; /* failed to initialize test */ |
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|
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/* Baseline checks */ |
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check_list(&list[0], 8, &elem[0], &elem[7], 0, "ll_remove_baseline", |
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"Verify baseline list[0]"); |
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check_list(&list[1], 1, &elem[8], &elem[8], 1, "ll_remove_baseline", |
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"Verify baseline list[1]"); |
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|
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/* Check to see if ll_remove verifies its arguments correctly */ |
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check_result(ll_remove(0, 0), DB_ERR_BADARGS, "ll_remove_noargs", |
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"ll_remove() with no arguments", 0); |
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check_result(ll_remove(&list[2], &elem[0]), DB_ERR_BADARGS, |
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"ll_remove_badlist", "ll_remove() with bad list", 1); |
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check_result(ll_remove(&list[0], &elem[10]), DB_ERR_BADARGS, |
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"ll_remove_badelem", "ll_remove() with bad element", 1); |
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|
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/* Unused element test */ |
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check_result(ll_remove(&list[0], &elem[9]), DB_ERR_UNUSED, |
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"ll_remove_unused", "ll_remove() with unused element", 1); |
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|
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/* Wrong list test */ |
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check_result(ll_remove(&list[0], &elem[8]), DB_ERR_WRONGTABLE, |
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"ll_remove_wronglist", "ll_remove() with element in wrong list", |
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1); |
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|
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/* Make sure removing from a one-item list does the right thing */ |
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check_result(ll_remove(&list[1], &elem[8]), 0, "ll_remove_l1e8", |
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"Remove an item from one-item list", 1); |
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check_list(&list[1], 0, 0, 0, 1, "ll_remove_l1e8", |
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"Test removal of an item from one-item list"); |
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|
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/* Now try removing an item from the head of a longer list */ |
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check_result(ll_remove(&list[0], &elem[0]), 0, "ll_remove_l0e0", |
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"Remove an item from head of list", 1); |
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check_list(&list[0], 7, &elem[1], &elem[7], 0, "ll_remove_l0e0", |
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"Test removal of an item from head of list"); |
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check_elem(&elem[1], 0, &elem[2], &list[0], 0, 1, "ll_remove_l0e0", |
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"Test removal of an item from head of list"); |
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|
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/* Now try the tail... */ |
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check_result(ll_remove(&list[0], &elem[7]), 0, "ll_remove_l0e7", |
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"Remove an item from tail of list", 1); |
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check_list(&list[0], 6, &elem[1], &elem[6], 0, "ll_remove_l0e7", |
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"Test removal of an item from tail of list"); |
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check_elem(&elem[6], &elem[5], 0, &list[0], 0, 6, "ll_remove_l0e7", |
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"Test removal of an item from tail of list"); |
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|
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/* Finally, try the middle of the list */ |
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check_result(ll_remove(&list[0], &elem[3]), 0, "ll_remove_l0e3", |
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"Remove an item from middle of list", 1); |
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check_list(&list[0], 5, &elem[1], &elem[6], 0, "ll_remove_l0e3", |
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"Test removal of an item from middle of list"); |
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check_elem(&elem[2], &elem[1], &elem[4], &list[0], 0, 2, "ll_remove_l0e3", |
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"Test removal of an item from middle of list"); |
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check_elem(&elem[4], &elem[2], &elem[5], &list[0], 0, 4, "ll_remove_l0e3", |
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"Test removal of an item from middle of list"); |
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|
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return 0; |
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} |
