/****************************************************************************** The MIT License(MIT) Embedded Template Library. https://github.com/ETLCPP/etl https://www.etlcpp.com Copyright(c) 2021 John Wellbelove 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_test_framework.h" #include <iterator> #include <string> #include <vector> #include <stdint.h> #include "etl/crc16_modbus.h" //***************************************************************************** // The results for these tests were created from https://crccalc.com/ //***************************************************************************** namespace { SUITE(test_crc16_modbus) { //************************************************************************* // Table size 256 //************************************************************************* TEST(test_crc16_modbus) { std::string data("123456789"); uint16_t crc = etl::crc16_modbus(data.begin(), data.end()); CHECK_EQUAL(0x4B37U, crc); } //************************************************************************* TEST(test_crc16_modbus_add_values) { std::string data("123456789"); etl::crc16_modbus crc_calculator; for (size_t i = 0UL; i < data.size(); ++i) { crc_calculator.add(data[i]); } uint16_t crc = crc_calculator; CHECK_EQUAL(0x4B37U, crc); } //************************************************************************* TEST(test_crc16_modbus_add_range) { std::string data("123456789"); etl::crc16_modbus crc_calculator; crc_calculator.add(data.begin(), data.end()); uint16_t crc = crc_calculator.value(); CHECK_EQUAL(0x4B37U, crc); } //************************************************************************* TEST(test_crc16_modbus_add_range_via_iterator) { std::string data("123456789"); etl::crc16_modbus crc_calculator; std::copy(data.begin(), data.end(), crc_calculator.input()); uint16_t crc = crc_calculator.value(); CHECK_EQUAL(0x4B37U, crc); } //************************************************************************* TEST(test_crc16_modbus_add_range_endian) { std::vector<uint8_t> data1 = { 0x01U, 0x02U, 0x03U, 0x04U, 0x05U, 0x06U, 0x07U, 0x08U }; std::vector<uint32_t> data2 = { 0x04030201UL, 0x08070605UL }; std::vector<uint8_t> data3 = { 0x08U, 0x07U, 0x06U, 0x05U, 0x04U, 0x03U, 0x02U, 0x01U }; uint16_t crc1 = etl::crc16_modbus(data1.begin(), data1.end()); uint16_t crc2 = etl::crc16_modbus((uint8_t*)&data2[0], (uint8_t*)(&data2[0] + data2.size())); CHECK_EQUAL(crc1, crc2); uint16_t crc3 = etl::crc16_modbus(data3.rbegin(), data3.rend()); CHECK_EQUAL(crc1, crc3); } //************************************************************************* // Table size 16 //************************************************************************* TEST(test_crc16_modbus_16) { std::string data("123456789"); uint16_t crc = etl::crc16_modbus_t16(data.begin(), data.end()); CHECK_EQUAL(0x4B37U, crc); } //************************************************************************* TEST(test_crc16_modbus_16_add_values) { std::string data("123456789"); etl::crc16_modbus_t16 crc_calculator; for (size_t i = 0UL; i < data.size(); ++i) { crc_calculator.add(data[i]); } uint16_t crc = crc_calculator; CHECK_EQUAL(0x4B37U, crc); } //************************************************************************* TEST(test_crc16_modbus_16_add_range) { std::string data("123456789"); etl::crc16_modbus_t16 crc_calculator; crc_calculator.add(data.begin(), data.end()); uint16_t crc = crc_calculator.value(); CHECK_EQUAL(0x4B37U, crc); } //************************************************************************* TEST(test_crc16_modbus_16_add_range_via_iterator) { std::string data("123456789"); etl::crc16_modbus_t16 crc_calculator; std::copy(data.begin(), data.end(), crc_calculator.input()); uint16_t crc = crc_calculator.value(); CHECK_EQUAL(0x4B37U, crc); } //************************************************************************* TEST(test_crc16_modbus_16_add_range_endian) { std::vector<uint8_t> data1 = { 0x01U, 0x02U, 0x03U, 0x04U, 0x05U, 0x06U, 0x07U, 0x08U }; std::vector<uint32_t> data2 = { 0x04030201UL, 0x08070605UL }; std::vector<uint8_t> data3 = { 0x08U, 0x07U, 0x06U, 0x05U, 0x04U, 0x03U, 0x02U, 0x01U }; uint16_t crc1 = etl::crc16_modbus_t16(data1.begin(), data1.end()); uint16_t crc2 = etl::crc16_modbus_t16((uint8_t*)&data2[0], (uint8_t*)(&data2[0] + data2.size())); CHECK_EQUAL(crc1, crc2); uint16_t crc3 = etl::crc16_modbus_t16(data3.rbegin(), data3.rend()); CHECK_EQUAL(crc1, crc3); } //************************************************************************* // Table size 4 //************************************************************************* TEST(test_crc16_modbus_4) { std::string data("123456789"); uint16_t crc = etl::crc16_modbus_t4(data.begin(), data.end()); CHECK_EQUAL(0x4B37U, crc); } //************************************************************************* TEST(test_crc16_modbus_4_add_values) { std::string data("123456789"); etl::crc16_modbus_t4 crc_calculator; for (size_t i = 0UL; i < data.size(); ++i) { crc_calculator.add(data[i]); } uint16_t crc = crc_calculator; CHECK_EQUAL(0x4B37U, crc); } //************************************************************************* TEST(test_crc16_modbus_4_add_range) { std::string data("123456789"); etl::crc16_modbus_t4 crc_calculator; crc_calculator.add(data.begin(), data.end()); uint16_t crc = crc_calculator.value(); CHECK_EQUAL(0x4B37U, crc); } //************************************************************************* TEST(test_crc16_modbus_4_add_range_via_iterator) { std::string data("123456789"); etl::crc16_modbus_t4 crc_calculator; std::copy(data.begin(), data.end(), crc_calculator.input()); uint16_t crc = crc_calculator.value(); CHECK_EQUAL(0x4B37U, crc); } //************************************************************************* TEST(test_crc16_modbus_4_add_range_endian) { std::vector<uint8_t> data1 = { 0x01U, 0x02U, 0x03U, 0x04U, 0x05U, 0x06U, 0x07U, 0x08U }; std::vector<uint32_t> data2 = { 0x04030201UL, 0x08070605UL }; std::vector<uint8_t> data3 = { 0x08U, 0x07U, 0x06U, 0x05U, 0x04U, 0x03U, 0x02U, 0x01U }; uint16_t crc1 = etl::crc16_modbus_t4(data1.begin(), data1.end()); uint16_t crc2 = etl::crc16_modbus_t4((uint8_t*)&data2[0], (uint8_t*)(&data2[0] + data2.size())); CHECK_EQUAL(crc1, crc2); uint16_t crc3 = etl::crc16_modbus_t4(data3.rbegin(), data3.rend()); CHECK_EQUAL(crc1, crc3); } }; }