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Duy Vothenguyenyf
Duy Vo
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thenguyenyf
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tests: subsys: crc: add ztests for CRC subsystem
Add ztests for CRC subsystem Signed-off-by: Duy Vo <duy.vo.xc@bp.renesas.com>
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‎tests/subsys/crc/CMakeLists.txt

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cmake_minimum_required(VERSION 3.20.0)
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find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
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project(subsys_crc_test)
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target_sources(app PRIVATE src/main.c)

‎tests/subsys/crc/prj.conf

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CONFIG_ZTEST=y
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CONFIG_CRC_NEW=y
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CONFIG_LOG=y

‎tests/subsys/crc/src/main.c

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/*
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* Copyright (c) 2025 Renesas Electronics Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "zephyr/drivers/crc.h"
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#include <zephyr/ztest.h>
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#include <zephyr/logging/log.h>
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#include <zephyr/crc_new/crc_new.h>
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/* Define result of CRC computation */
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#define RESULT_CRC8 0xB2
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/**
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* @brief Test crc8 works
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*/
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ZTEST(crc_subsys, test_crc_8)
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{
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uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
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uint8_t result = 0;
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zassert_equal(crc8_new(data, sizeof(data), CRC8_REFLECT_POLY, 0x00, true, &result), 0);
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zassert_equal(result, RESULT_CRC8);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC8_CCITT 0x4D
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/**
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* @brief Test crc8_ccitt works
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*/
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ZTEST(crc_subsys, test_crc_8_ccitt)
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{
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uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
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uint8_t result = 0;
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zassert_equal(crc8_ccitt_new(0x00, data, sizeof(data), &result), 0);
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zassert_equal(result, RESULT_CRC8_CCITT);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC8_ROHC 0xB2
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/**
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* @brief Test that crc_8_rohc works
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*/
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ZTEST(crc_subsys, test_crc_8_rohc)
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{
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uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
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uint8_t result = 0;
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zassert_equal(crc8_rohc_new(0x00, data, sizeof(data), &result), 0);
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zassert_equal(result, RESULT_CRC8_ROHC);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC16 0xE58F
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/**
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* @brief Test that crc_16 works
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*/
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ZTEST(crc_subsys, test_crc_16)
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{
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uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
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uint16_t result;
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zassert_equal(crc16_new(CRC16_POLY, CRC16_INIT_VAL, data, sizeof(data), &result), 0);
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zassert_equal(result, RESULT_CRC16);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC16_REFLECT 0xD543
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/**
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* @brief Test that crc_16_reflect works
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*/
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ZTEST(crc_subsys, test_crc_16_reflect)
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{
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uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
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uint16_t result;
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zassert_equal(
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crc16_reflect_new(CRC16_REFLECT_POLY, CRC16_INIT_VAL, data, sizeof(data), &result),
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0);
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zassert_equal(result, RESULT_CRC16_REFLECT);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC16_ANSI 0xDE03
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/**
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* @brief Test that crc_16_ansi works
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*/
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ZTEST(crc_subsys, test_crc_16_ansi)
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{
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uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
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uint16_t result;
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zassert_equal(crc16_ansi_new(data, sizeof(data), &result), 0);
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zassert_equal(result, RESULT_CRC16_ANSI);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC_CCITT 0x445C
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/**
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* @brief Test that crc_16_ccitt works
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*/
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ZTEST(crc_subsys, test_crc_16_ccitt)
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{
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uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
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uint16_t result;
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zassert_equal(crc16_ccitt_new(0x0000, data, sizeof(data), &result), 0);
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zassert_equal(result, RESULT_CRC_CCITT);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC16_ITU_T 0x8866
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/**
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* @brief Test that crc_16_itu_t works
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*/
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ZTEST(crc_subsys, test_crc_16_itu_t)
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{
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uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
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uint16_t result;
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zassert_equal(crc16_itu_t_new(0x0000, data, sizeof(data), &result), 0);
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zassert_equal(result, RESULT_CRC16_ITU_T);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC32_C 0xBB19ECB2
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/**
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* @brief Test that crc32_c works
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*/
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ZTEST(crc_subsys, test_crc_32_c)
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{
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uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
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uint32_t result;
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zassert_equal(crc32_c_new(0x000, data, sizeof(data), true, false, &result), 0);
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zassert_equal(result, RESULT_CRC32_C);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC32_IEEE 0xCEA4A6C2
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/**
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* @brief Test that crc_32_ieee works
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*/
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ZTEST(crc_subsys, test_crc_32_ieee)
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{
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uint8_t data[8] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4};
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uint32_t result;
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zassert_equal(crc32_ieee_new(data, sizeof(data), &result), 0);
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zassert_equal(result, RESULT_CRC32_IEEE);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC8_CCITT_REMAIN_1 0x57
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/**
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* @brief Test crc8_ccitt_remain_1 work
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*/
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ZTEST(crc_subsys, test_crc_8_ccitt_remain_1)
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{
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uint8_t data[9] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4, 0x3D};
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uint8_t result = 0;
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zassert_equal(crc8_ccitt_new(0x00, data, sizeof(data), &result), 0);
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zassert_equal(result, RESULT_CRC8_CCITT_REMAIN_1);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC8_ROHC_REMAIN_2 0x4F
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/**
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* @brief Test that crc_8_rohc_remain_2 works
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*/
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ZTEST(crc_subsys, test_crc_8_rohc_remain_2)
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{
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uint8_t data[10] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4, 0x3D, 0xFF};
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uint8_t result = 0;
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zassert_equal(crc8_rohc_new(0x00, data, sizeof(data), &result), 0);
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zassert_equal(result, RESULT_CRC8_ROHC_REMAIN_2);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC_CCITT_REMAIN_3 0x454B
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/**
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* @brief Test that crc_16_ccitt_remain_3 works
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*/
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ZTEST(crc_subsys, test_crc_16_ccitt_remain_3)
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{
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uint8_t data[11] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4, 0x3D, 0xFF, 0xE2};
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uint16_t result;
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zassert_equal(crc16_ccitt_new(0x0000, data, sizeof(data), &result), 0);
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zassert_equal(result, RESULT_CRC_CCITT_REMAIN_3);
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}
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/* Define result of CRC computation */
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#define RESULT_CRC16_ITU_T_REMAIN_1 0x917E
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/**
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* @brief Test that crc_16_itu_t_remain_1 works
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*/
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ZTEST(crc_subsys, test_crc_16_itu_t_remain_1)
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{
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uint8_t data[9] = {0x0A, 0x2B, 0x4C, 0x6D, 0x8E, 0x49, 0x00, 0xC4, 0x3D};
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uint16_t result;
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zassert_equal(crc16_itu_t_new(0x0000, data, sizeof(data), &result), 0);
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zassert_equal(result, RESULT_CRC16_ITU_T_REMAIN_1);
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}
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ZTEST_SUITE(crc_subsys, NULL, NULL, NULL, NULL, NULL);

‎tests/subsys/crc/testcase.yaml

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tests:
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subsys.crc:
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depends_on: crc
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tags:
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- subsys
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- crc
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harness: ztest

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