/*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
 *
 * 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.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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 "It_test_sys.h"

struct q {
    struct q *n;
    struct q *p;
    int i;
};

static struct q *New(int i)
{
    struct q *q = (struct q *)malloc(sizeof *q);
    q->i = i;
    return q;
}

static UINT32 TestCase(VOID)
{
    struct q *q = New(0);
    struct q *p = NULL;
    int i;

    insque(q, 0);
    for (i = 1; i < 10; i++) {
        insque(New(i), q);
        q = q->n;
    }
    p = q;
    while (q) {
        if (q->i != --i) {
            printf("[IN %s][line %d]walking queue: got %d, wanted %d\n", __FUNCTION__, __LINE__, q->i, i);
            goto EXIT;
        }
        q = q->p;
    }
    remque(p->p);
    if (p->p->i != p->i - 2) {
        printf("[IN %s][line %d]remque: got %d, wanted %d\n", __FUNCTION__, __LINE__, p->p->i, p->i - 2);
        goto EXIT;
    }
    if (p->p->n->i != p->i) {
        printf("[IN %s][line %d]remque: got %d, wanted %d\n", __FUNCTION__, __LINE__, p->p->n->i, p->i);
        goto EXIT;
    }

    return 0;
EXIT:
    return -1;
}

VOID ItTestSys013(VOID)
{
    TEST_ADD_CASE(__FUNCTION__, TestCase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
}
