Files
linux-nvgpu/userspace/units/interface/string/nvgpu-string.c
2025-12-19 15:25:44 -08:00

112 lines
3.6 KiB
C

/*
* Copyright (c) 2020, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <unit/unit.h>
#include <unit/io.h>
#include <nvgpu/posix/io.h>
#include <nvgpu/string.h>
#include "nvgpu-string.h"
#include <string.h>
int test_memcpy_memcmp(struct unit_module *m, struct gk20a *g, void *args)
{
const size_t len = 10;
u8 dest[len];
u8 src[len];
u8 i;
for (i = 0; i < len; i++) {
dest[i] = 0;
src[i] = i;
}
nvgpu_memcpy(dest, src, len);
unit_assert(nvgpu_memcmp(dest, src, len) == 0, return UNIT_FAIL);
for (i = 0; i < len; i++) {
dest[i] = 0;
}
nvgpu_memcpy(dest, src, len - 1U);
unit_assert(nvgpu_memcmp(dest, src, len - 1U) == 0, return UNIT_FAIL);
unit_assert(dest[len - 1] == 0, return UNIT_FAIL);
unit_assert(nvgpu_memcmp(dest, src, len) != 0, return UNIT_FAIL);
/* test size==0 */
unit_assert(nvgpu_memcmp(dest, src, 0) == 0, return UNIT_FAIL);
return UNIT_SUCCESS;
}
int test_strnadd_u32(struct unit_module *m, struct gk20a *g, void *args)
{
const size_t len = 10;
char dest[len];
/* test invalid radices */
unit_assert(nvgpu_strnadd_u32(dest, 10U, len, 1U) == 0,
return UNIT_FAIL);
unit_assert(nvgpu_strnadd_u32(dest, 10U, len, 17U) == 0,
return UNIT_FAIL);
/* test insufficient space */
unit_assert(nvgpu_strnadd_u32(dest, 1000U, 2, 10U) == 0,
return UNIT_FAIL);
unit_assert(nvgpu_strnadd_u32(dest, 1000U, 4, 10U) == 0,
return UNIT_FAIL);
unit_assert(nvgpu_strnadd_u32(dest, 1000U, len, 10U) == 4,
return UNIT_FAIL);
unit_assert(strncmp(dest, "1000", 4) == 0, return UNIT_FAIL);
unit_assert(nvgpu_strnadd_u32(dest, 0xdeadbeef, len, 16U) == 8,
return UNIT_FAIL);
unit_assert(strncmp(dest, "deadbeef", 8) == 0, return UNIT_FAIL);
return UNIT_SUCCESS;
}
int test_mem_is_word_aligned(struct unit_module *m, struct gk20a *g, void *args)
{
unit_assert(nvgpu_mem_is_word_aligned(g, (u8 *)0x1000),
return UNIT_FAIL);
unit_assert(!nvgpu_mem_is_word_aligned(g, (u8 *)0x1001),
return UNIT_FAIL);
unit_assert(!nvgpu_mem_is_word_aligned(g, (u8 *)0x1002),
return UNIT_FAIL);
unit_assert(!nvgpu_mem_is_word_aligned(g, (u8 *)0x1003),
return UNIT_FAIL);
unit_assert(nvgpu_mem_is_word_aligned(g, (u8 *)0x1004),
return UNIT_FAIL);
return UNIT_SUCCESS;
}
struct unit_module_test string_tests[] = {
UNIT_TEST(memcpy_memcmp, test_memcpy_memcmp, NULL, 0),
UNIT_TEST(strnadd_u32, test_strnadd_u32, NULL, 0),
UNIT_TEST(mem_is_word_aligned, test_mem_is_word_aligned, NULL, 0),
};
UNIT_MODULE(string, string_tests, UNIT_PRIO_NVGPU_TEST);