isc/tests/queue_test.c

	queue_test.c revision 8e0a15f42f06d1616b6f5d43658e2f90ff91cbfa
/*
 * Copyright (C) 2011, 2012  Internet Systems Consortium, Inc. ("ISC")
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

/* $Id$ */

/*! \file */

#include <config.h>

#include <atf-c.h>

#include <unistd.h>
#include <time.h>

#include <isc/queue.h>

#include "isctest.h"

typedef struct item item_t;
struct item {
    int             value;
    ISC_QLINK(item_t)   qlink;
};

typedef ISC_QUEUE(item_t) item_queue_t;

static void
item_init(item_t *item, int value) {
    item->value = value;
    ISC_QLINK_INIT(item, qlink);
}

/*
 * Individual unit tests
 */

/* Test UDP sendto/recv (IPv4) */
ATF_TC(queue_valid);
ATF_TC_HEAD(queue_valid, tc) {
    atf_tc_set_md_var(tc, "descr", "Check queue validity");
}
ATF_TC_BODY(queue_valid, tc) {
    isc_result_t result;
    item_queue_t queue;
    item_t one, two, three, four, five;
    item_t *p;

    UNUSED(tc);

    ISC_QUEUE_INIT(queue, qlink);

    item_init(&one, 1);
    item_init(&two, 2);
    item_init(&three, 3);
    item_init(&four, 4);
    item_init(&five, 5);

    result = isc_test_begin(NULL, ISC_TRUE);
    ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);

    ATF_CHECK(ISC_QUEUE_EMPTY(queue));

    ISC_QUEUE_POP(queue, qlink, p);
    ATF_CHECK(p == NULL);

    ATF_CHECK(! ISC_QLINK_LINKED(&one, qlink));
    ISC_QUEUE_PUSH(queue, &one, qlink);
    ATF_CHECK(ISC_QLINK_LINKED(&one, qlink));

    ATF_CHECK(! ISC_QUEUE_EMPTY(queue));

    ISC_QUEUE_POP(queue, qlink, p);
    ATF_REQUIRE(p != NULL);
    ATF_CHECK_EQ(p->value, 1);
    ATF_CHECK(ISC_QUEUE_EMPTY(queue));
    ATF_CHECK(! ISC_QLINK_LINKED(p, qlink));

    ISC_QUEUE_PUSH(queue, p, qlink);
    ATF_CHECK(! ISC_QUEUE_EMPTY(queue));
    ATF_CHECK(ISC_QLINK_LINKED(p, qlink));

    ATF_CHECK(! ISC_QLINK_LINKED(&two, qlink));
    ISC_QUEUE_PUSH(queue, &two, qlink);
    ATF_CHECK(ISC_QLINK_LINKED(&two, qlink));

    ATF_CHECK(! ISC_QLINK_LINKED(&three, qlink));
    ISC_QUEUE_PUSH(queue, &three, qlink);
    ATF_CHECK(ISC_QLINK_LINKED(&three, qlink));

    ATF_CHECK(! ISC_QLINK_LINKED(&four, qlink));
    ISC_QUEUE_PUSH(queue, &four, qlink);
    ATF_CHECK(ISC_QLINK_LINKED(&four, qlink));

    ATF_CHECK(! ISC_QLINK_LINKED(&five, qlink));
    ISC_QUEUE_PUSH(queue, &five, qlink);
    ATF_CHECK(ISC_QLINK_LINKED(&five, qlink));

    /* Test unlink by removing one item from the middle */
    ISC_QUEUE_UNLINK(queue, &three, qlink);

    ISC_QUEUE_POP(queue, qlink, p);
    ATF_REQUIRE(p != NULL);
    ATF_CHECK_EQ(p->value, 1);

    ISC_QUEUE_POP(queue, qlink, p);
    ATF_REQUIRE(p != NULL);
    ATF_CHECK_EQ(p->value, 2);

    ISC_QUEUE_POP(queue, qlink, p);
    ATF_REQUIRE(p != NULL);
    ATF_CHECK_EQ(p->value, 4);

    ISC_QUEUE_POP(queue, qlink, p);
    ATF_REQUIRE(p != NULL);
    ATF_CHECK_EQ(p->value, 5);

    ATF_CHECK(ISC_QUEUE_EMPTY(queue));

    ISC_QUEUE_DESTROY(queue);
    isc_test_end();
}

/*
 * Main
 */
ATF_TP_ADD_TCS(tp) {
    ATF_TP_ADD_TC(tp, queue_valid);

    return (atf_no_error());
}