/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
 * test_mem.c
 *
 * Tests Malloc, Realloc and Free
 *
 */

#include "testutil.h"
#include "testutil_nss.h"

static void *plContext = NULL;

static void
testMalloc(PKIX_UInt32 **array)
{
    PKIX_UInt32 i, arraySize = 10;
    PKIX_TEST_STD_VARS();

    /* Create an integer array of size 10 */
    PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_Malloc(
        (PKIX_UInt32)(arraySize * sizeof(unsigned int)),
        (void **)array, plContext));

    /* Fill in some values */
    (void)printf("Setting array[i] = i...\n");
    for (i = 0; i < arraySize; i++) {
        (*array)[i] = i;
        if ((*array)[i] != i)
            testError("Array has incorrect contents");
    }

    /* Memory now reflects changes */
    (void)printf("\tArray: a[0] = %d, a[5] = %d, a[7] = %d.\n",
                 (*array[0]), (*array)[5], (*array)[7]);

cleanup:
    PKIX_TEST_RETURN();
}

static void
testRealloc(PKIX_UInt32 **array)
{
    PKIX_UInt32 i, arraySize = 20;
    PKIX_TEST_STD_VARS();

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_Realloc(*array,
                                              (PKIX_UInt32)(arraySize *
                                                            sizeof(unsigned int)),
                                              (void **)array, plContext));

    /* Fill in the new elements */
    (void)printf("Setting new portion of array to a[i] = i...\n");
    for (i = arraySize / 2; i < arraySize; i++) {
        (*array)[i] = i;
        if ((*array)[i] != i)
            testError("Array has incorrect contents");
    }

    /* New elements should be reflected. The old should be the same */
    (void)printf("\tArray: a[0] = %d, a[15] = %d, a[17] = %d.\n",
                 (*array)[0], (*array)[15], (*array)[17]);

cleanup:
    PKIX_TEST_RETURN();
}

static void
testFree(PKIX_UInt32 *array)
{

    PKIX_TEST_STD_VARS();
    PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_Free(array, plContext));

cleanup:
    PKIX_TEST_RETURN();
}

int
test_mem(int argc, char *argv[])
{

    unsigned int *array = NULL;
    int arraySize = 10;
    PKIX_UInt32 actualMinorVersion;
    PKIX_UInt32 j = 0;

    PKIX_TEST_STD_VARS();

    startTests("Memory Allocation");

    PKIX_TEST_EXPECT_NO_ERROR(
        PKIX_PL_NssContext_Create(0, PKIX_FALSE, NULL, &plContext));

    subTest("PKIX_PL_Malloc");
    testMalloc(&array);

    subTest("PKIX_PL_Realloc");
    testRealloc(&array);

    subTest("PKIX_PL_Free");
    testFree(array);

    /* --Negative Test Cases------------------- */
    /* Create an integer array of size 10 */
    PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_Malloc(
        (PKIX_UInt32)(arraySize * sizeof(unsigned int)),
        (void **)&array, plContext));

    (void)printf("Attempting to reallocate 0 sized memory...\n");

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_Realloc(array, 0, (void **)&array, plContext));

    (void)printf("Attempting to allocate to null pointer...\n");

    PKIX_TEST_EXPECT_ERROR(PKIX_PL_Malloc(10, NULL, plContext));

    (void)printf("Attempting to reallocate to null pointer...\n");

    PKIX_TEST_EXPECT_ERROR(PKIX_PL_Realloc(NULL, 10, NULL, plContext));

    PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_Free(array, plContext));

cleanup:

    PKIX_Shutdown(plContext);

    endTests("Memory Allocation");

    return (0);
}