arraytest.c

/*
 * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
 *      The President and Fellows of Harvard College.
 *
 * 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 University 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 UNIVERSITY 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 UNIVERSITY 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 <types.h>
#include <lib.h>
#include <array.h>
#include <test.h>

#define TESTSIZE 73

static
void
testa(struct array *a)
{
        int testarray[TESTSIZE];
        int i, j, n, r, *p;

        for (i=0; i<TESTSIZE; i++) {
                testarray[i]=i;
        }

        n = array_num(a);
        KASSERT(n==0);

        for (i=0; i<TESTSIZE; i++) {
                r = array_add(a, &testarray[i], NULL);
                KASSERT(r==0);
                n = array_num(a);
                KASSERT(n==i+1);
        }
        n = array_num(a);
        KASSERT(n==TESTSIZE);

        for (i=0; i<TESTSIZE; i++) {
                p = array_get(a, i);
                KASSERT(*p == i);
        }
        n = array_num(a);
        KASSERT(n==TESTSIZE);

        for (j=0; j<TESTSIZE*4; j++) {
                i = random()%TESTSIZE;
                p = array_get(a, i);
                KASSERT(*p == i);
        }
        n = array_num(a);
        KASSERT(n==TESTSIZE);

        for (i=0; i<TESTSIZE; i++) {
                array_set(a, i, &testarray[TESTSIZE-i-1]);
        }

        for (i=0; i<TESTSIZE; i++) {
                p = array_get(a, i);
                KASSERT(*p == TESTSIZE-i-1);
        }

        r = array_setsize(a, TESTSIZE/2);
        KASSERT(r==0);

        for (i=0; i<TESTSIZE/2; i++) {
                p = array_get(a, i);
                KASSERT(*p == TESTSIZE-i-1);
        }

        array_remove(a, 1);

        for (i=1; i<TESTSIZE/2 - 1; i++) {
                p = array_get(a, i);
                KASSERT(*p == TESTSIZE-i-2);
        }
        p = array_get(a, 0);
        KASSERT(*p == TESTSIZE-1);

        array_setsize(a, 2);
        p = array_get(a, 0);
        KASSERT(*p == TESTSIZE-1);
        p = array_get(a, 1);
        KASSERT(*p == TESTSIZE-3);

        array_set(a, 1, NULL);
        array_setsize(a, 2);
        p = array_get(a, 0);
        KASSERT(*p == TESTSIZE-1);
        p = array_get(a, 1);
        KASSERT(p==NULL);

        array_setsize(a, TESTSIZE*10);
        p = array_get(a, 0);
        KASSERT(*p == TESTSIZE-1);
        p = array_get(a, 1);
        KASSERT(p==NULL);
}

int
arraytest(int nargs, char **args)
{
        struct array *a;

        (void)nargs;
        (void)args;

        kprintf("Beginning array test...\n");
        a = array_create();
        KASSERT(a != NULL);

        testa(a);

        array_setsize(a, 0);

        testa(a);

        array_setsize(a, 0);
        array_destroy(a);

        kprintf("Array test complete\n");
        return 0;
}