test_memops.c

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// SPDX-License-Identifier: GPL-3.0-or-later
 
#include "test_engine_impl.h"
 
#include <mos_stdlib.h>
#include <mos_string.h>
 
MOS_TEST_CASE(test_lib_memcpy)
{
    char *src = kcalloc(500, sizeof(char));
    char *dst = kcalloc(500, sizeof(char));
 
    for (size_t i = 0; i < 500; i++)
        src[i] = i;
 
    memcpy(dst, src, 500);
 
    for (size_t i = 0; i < 500; i++)
        MOS_TEST_CHECK(dst[i] == src[i], true);
 
    kfree(src);
    kfree(dst);
}
 
MOS_TEST_CASE(test_lib_memmove_simple)
{
    char *src = kcalloc(500, sizeof(char));
    char *dst = kcalloc(500, sizeof(char));
 
    for (size_t i = 0; i < 500; i++)
        src[i] = i;
 
    memmove(dst, src, 500);
    for (size_t i = 0; i < 500; i++)
        MOS_TEST_CHECK(dst[i] == src[i], true);
 
    kfree(src);
    kfree(dst);
}
 
MOS_TEST_CASE(test_memmove_overlapped)
{
    size_t *src = kcalloc(500, sizeof(size_t));
 
    for (size_t i = 0; i < 300; i++)
        src[i] = i;
 
    memmove(src + 200, src, 300 * sizeof(size_t));
 
    for (size_t i = 200; i < 500; i++)
        MOS_TEST_CHECK(src[i], i - 200);
 
    kfree(src);
}
 
MOS_TEST_CASE(test_memmove_overlapped_backwards)
{
    size_t *src = kcalloc(500, sizeof(size_t));
 
    for (size_t i = 0; i < 500; i++)
        src[i] = i;
 
    // |  0 -  99 - 100 - 199 - 200 - 299| - 300 - 399 - 400 - 499
    memmove(src, src + 200, 300 * sizeof(size_t));
    // |200 - 299 - 300 - 399 - 400 - 499| - 300 - 399 - 400 - 499
 
    // the front 200 ~ 499 area
    for (size_t i = 0; i < 300; i++)
        MOS_TEST_CHECK(src[i], i + 200);
 
    // 300 ~ 499 area
    for (size_t i = 300; i < 500; i++)
        MOS_TEST_CHECK(src[i], i);
    kfree(src);
}