/*      $NetBSD: t_list.c,v 1.3 2024/07/10 20:52:32 rillig Exp $        */

/*-
* Copyright (c) 2017 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Paul Goyette
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include <stdlib.h>
#include <string.h>

#include <sys/queue.h>

#include <atf-c.h>

/*
* XXX This is a limited test to make sure the operations behave as
* described on a sequential machine.  It does nothing to test the
* pserialize-safety of any operations.
*/

ATF_TC(list_move);
ATF_TC_HEAD(list_move, tc)
{
       atf_tc_set_md_var(tc, "descr", "LIST_MOVE verification");
}
ATF_TC_BODY(list_move, tc)
{
       LIST_HEAD(listhead, entry) old_head, new_head, old_copy;
       struct entry {
               LIST_ENTRY(entry) entries;
               uint64_t        value;
       } *n1, *n2, *n3;

       LIST_INIT(&old_head);

       n1 = malloc(sizeof(struct entry));
       n1->value = 1;
       LIST_INSERT_HEAD(&old_head, n1, entries);

       n2 = malloc(sizeof(struct entry));
       n2->value = 2;
       LIST_INSERT_HEAD(&old_head, n2, entries);

       LIST_MOVE(&old_head, &new_head, entries);

       memcpy(&old_copy, &old_head, sizeof(old_head));

       n3 = LIST_FIRST(&new_head);
       ATF_CHECK_MSG(n3->value == 2, "Unexpected value for LIST_FIRST");

       LIST_REMOVE(n3, entries);
       ATF_CHECK_MSG(memcmp(&old_copy, &old_head, sizeof(old_head)) == 0,
           "Unexpected modification of old_head during LIST_REMOVE");

       LIST_REMOVE(LIST_FIRST(&new_head), entries);
       ATF_CHECK_MSG(LIST_EMPTY(&new_head), "New list not empty!");
}

ATF_TP_ADD_TCS(tp)
{

       ATF_TP_ADD_TC(tp, list_move);

       return atf_no_error();
}