sys_test_028.cpp

/* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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 * 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
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "It_test_sys.h"

static UINT32 TestCase(VOID)
{
    int ret, status;

    pid_t pid = fork();
    if (pid == 0) {
        ret = setpriority(PRIO_PROCESS, 0, 15); /* 15, set priority for test */
        if (ret != 0) {
            exit(0);
        }
        ret = nice(0);
        exit(ret);
    } else {
        ret = waitpid(pid, &status, 0);
        ICUNIT_ASSERT_EQUAL(ret, pid, ret);
        status = WEXITSTATUS(status);
        ICUNIT_ASSERT_EQUAL(status, 15, status); /* 15, set priority for test */

        ret = nice(-40); /* -40, set invalid priority for test */
        ICUNIT_ASSERT_EQUAL(ret, -1, ret);
        ICUNIT_ASSERT_EQUAL(errno, EINVAL, errno);
    }
    return 0;
}

VOID ItTestSys028(VOID)
{
    TEST_ADD_CASE(ItTestSys028, TestCase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
}