test_crc.cpp

/******************************************************************************
The MIT License(MIT)

Embedded Template Library.
https://github.com/ETLCPP/etl
http://www.etlcpp.com

Copyright(c) 2014 jwellbelove

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******************************************************************************/

#include "UnitTest++.h"

#include <iterator>
#include <string>
#include <vector>
#include <stdint.h>

#include "etl/crc8_ccitt.h"
#include "etl/crc16.h"
#include "etl/crc16_ccitt.h"
#include "etl/crc16_kermit.h"
#include "etl/crc16_modbus.h"
#include "etl/crc32.h"
#include "etl/crc64_ecma.h"

namespace
{
  SUITE(test_crc)
  {
    //*************************************************************************
    TEST(test_crc8_ccitt_constructor)
    {
      std::string data("123456789");

      uint8_t crc = etl::crc8_ccitt(data.begin(), data.end());

      CHECK_EQUAL(0xF4, int(crc));
    }

    //*************************************************************************
    TEST(test_crc8_ccitt_add_values)
    {
      std::string data("123456789");

      etl::crc8_ccitt crc_calculator;

      for (size_t i = 0; i < data.size(); ++i)
      {
        crc_calculator.add(data[i]);
      }

      uint8_t crc = crc_calculator;

      CHECK_EQUAL(0xF4, crc);
    }

    //*************************************************************************
    TEST(test_crc8_ccitt_add_range)
    {
      std::string data("123456789");

      etl::crc8_ccitt crc_calculator;

      crc_calculator.add(data.begin(), data.end());

      uint8_t crc = crc_calculator.value();

      CHECK_EQUAL(0xF4, crc);
    }

    //*************************************************************************
    TEST(test_crc8_ccitt_add_range_endian)
    {
      std::vector<uint8_t>  data1 = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
      std::vector<uint32_t> data2 = { 0x04030201, 0x08070605 };
      std::vector<uint8_t>  data3 = { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01 };

      uint8_t crc1 = etl::crc32(data1.begin(), data1.end());
      uint8_t crc2 = etl::crc32((uint8_t*)&data2[0], (uint8_t*)(&data2[0] + data2.size()));
      CHECK_EQUAL(int(crc1), int(crc2));

      uint8_t crc3 = etl::crc32(data3.rbegin(), data3.rend());
      CHECK_EQUAL(int(crc1), int(crc3));
    }

    //*************************************************************************
    TEST(test_crc16)
    {
      std::string data("123456789");

      uint16_t crc = etl::crc16(data.begin(), data.end());

      CHECK_EQUAL(0xBB3D, crc);
    }

    //*************************************************************************
    TEST(test_crc16_add_values)
    {
      std::string data("123456789");

      etl::crc16 crc_calculator;

      for (size_t i = 0; i < data.size(); ++i)
      {
        crc_calculator.add(data[i]);
      }

      uint16_t crc = crc_calculator;

      CHECK_EQUAL(0xBB3D, crc);
    }

    //*************************************************************************
    TEST(test_crc16_add_range)
    {
      std::string data("123456789");

      etl::crc16 crc_calculator;

      crc_calculator.add(data.begin(), data.end());

      uint16_t crc = crc_calculator.value();

      CHECK_EQUAL(0xBB3D, crc);
    }

    //*************************************************************************
    TEST(test_crc16_add_range_endian)
    {
      std::vector<uint8_t>  data1 = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
      std::vector<uint32_t> data2 = { 0x04030201, 0x08070605 };
      std::vector<uint8_t>  data3 = { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01 };

      uint16_t crc1 = etl::crc16(data1.begin(), data1.end());
      uint16_t crc2 = etl::crc16((uint8_t*)&data2[0], (uint8_t*)(&data2[0] + data2.size()));
      CHECK_EQUAL(crc1, crc2);

      uint16_t crc3 = etl::crc16(data3.rbegin(), data3.rend());
      CHECK_EQUAL(crc1, crc3);
    }

    //*************************************************************************
    TEST(test_crc16_ccitt)
    {
      std::string data("123456789");

      uint16_t crc = etl::crc16_ccitt(data.begin(), data.end());

      CHECK_EQUAL(0x29B1, crc);
    }

    //*************************************************************************
    TEST(test_crc16_ccitt_add_values)
    {
      std::string data("123456789");

      etl::crc16_ccitt crc_calculator;

      for (size_t i = 0; i < data.size(); ++i)
      {
        crc_calculator.add(data[i]);
      }

      uint16_t crc = crc_calculator;

      CHECK_EQUAL(0x29B1, crc);
    }

    //*************************************************************************
    TEST(test_crc16_ccitt_add_range)
    {
      std::string data("123456789");

      etl::crc16_ccitt crc_calculator;

      crc_calculator.add(data.begin(), data.end());

      uint16_t crc = crc_calculator.value();

      CHECK_EQUAL(0x29B1, crc);
    }

    //*************************************************************************
    TEST(test_crc16_ccitt_add_range_endian)
    {
      std::vector<uint8_t>  data1 = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
      std::vector<uint32_t> data2 = { 0x04030201, 0x08070605 };
      std::vector<uint8_t>  data3 = { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01 };

      uint16_t crc1 = etl::crc16_ccitt(data1.begin(), data1.end());
      uint16_t crc2 = etl::crc16_ccitt((uint8_t*)&data2[0], (uint8_t*)(&data2[0] + data2.size()));
      CHECK_EQUAL(crc1, crc2);

      uint16_t crc3 = etl::crc16_ccitt(data3.rbegin(), data3.rend());
      CHECK_EQUAL(crc1, crc3);
    }

    //*************************************************************************
    TEST(test_crc16_kermit)
    {
      std::string data("123456789");

      uint16_t crc = etl::crc16_kermit(data.begin(), data.end());

      CHECK_EQUAL(0x2189, crc);
    }

    //*************************************************************************
    TEST(test_crc16_kermit_add_values)
    {
      std::string data("123456789");

      etl::crc16_kermit crc_calculator;

      for (size_t i = 0; i < data.size(); ++i)
      {
        crc_calculator.add(data[i]);
      }

      uint16_t crc = crc_calculator;

      CHECK_EQUAL(0x2189, crc);
    }

    //*************************************************************************
    TEST(test_crc16_kermit_add_range)
    {
      std::string data("123456789");

      etl::crc16_kermit crc_calculator;

      crc_calculator.add(data.begin(), data.end());

      uint16_t crc = crc_calculator.value();

      CHECK_EQUAL(0x2189, crc);
    }

    //*************************************************************************
    TEST(test_crc16_kermit_add_range_endian)
    {
      std::vector<uint8_t>  data1 = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
      std::vector<uint32_t> data2 = { 0x04030201, 0x08070605 };
      std::vector<uint8_t>  data3 = { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01 };

      uint16_t crc1 = etl::crc16_kermit(data1.begin(), data1.end());
      uint16_t crc2 = etl::crc16_kermit((uint8_t*)&data2[0], (uint8_t*)(&data2[0] + data2.size()));
      CHECK_EQUAL(crc1, crc2);

      uint16_t crc3 = etl::crc16_kermit(data3.rbegin(), data3.rend());
      CHECK_EQUAL(crc1, crc3);
    }

    //*************************************************************************
    TEST(test_crc16_modbus)
    {
      std::string data("123456789");

      uint16_t crc = etl::crc16_modbus(data.begin(), data.end());

      CHECK_EQUAL(0x4B37, crc);
    }

    //*************************************************************************
    TEST(test_crc16_modbus_add_values)
    {
      std::string data("123456789");

      etl::crc16_modbus crc_calculator;

      for (size_t i = 0; i < data.size(); ++i)
      {
        crc_calculator.add(data[i]);
      }

      uint16_t crc = crc_calculator;

      CHECK_EQUAL(0x4B37, 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(0x4B37, crc);
    }

    //*************************************************************************
    TEST(test_crc16_modbus_add_range_endian)
    {
      std::vector<uint8_t>  data1 = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
      std::vector<uint32_t> data2 = { 0x04030201, 0x08070605 };
      std::vector<uint8_t>  data3 = { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01 };

      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);
    }

    //*************************************************************************
    TEST(test_crc32)
    {
      std::string data("123456789");

      uint32_t crc = etl::crc32(data.begin(), data.end());

      CHECK_EQUAL(0xCBF43926, crc);
    }

    //*************************************************************************
    TEST(test_crc32_add_values)
    {
      std::string data("123456789");

      etl::crc32 crc_calculator;

      for (size_t i = 0; i < data.size(); ++i)
      {
        crc_calculator.add(data[i]);
      }

      uint32_t crc = crc_calculator;


      CHECK_EQUAL(0xCBF43926, crc);
    }

    //*************************************************************************
    TEST(test_crc32_add_range)
    {
      std::string data("123456789");

      etl::crc32 crc_calculator;

      crc_calculator.add(data.begin(), data.end());

      uint32_t crc = crc_calculator.value();

      CHECK_EQUAL(0xCBF43926, crc);
    }

    //*************************************************************************
    TEST(test_crc32_add_range_endian)
    {
      std::vector<uint8_t>  data1 = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
      std::vector<uint32_t> data2 = { 0x04030201, 0x08070605 };
      std::vector<uint8_t>  data3 = { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01 };

      uint32_t crc1 = etl::crc32(data1.begin(), data1.end());
      uint32_t crc2 = etl::crc32((uint8_t*)&data2[0], (uint8_t*)(&data2[0] + data2.size()));
      CHECK_EQUAL(crc1, crc2);

      uint32_t crc3 = etl::crc32(data3.rbegin(), data3.rend());
      CHECK_EQUAL(crc1, crc3);
    }

    //*************************************************************************
    TEST(test_crc64_ecma)
    {
      std::string data("123456789");

      uint64_t crc = etl::crc64_ecma(data.begin(), data.end());

      CHECK_EQUAL(0x6C40DF5F0B497347U, crc);
    }

    //*************************************************************************
    TEST(test_crc64_ecma_add_values)
    {
      std::string data("123456789");

      etl::crc64_ecma crc_calculator;

      for (size_t i = 0; i < data.size(); ++i)
      {
        crc_calculator.add(data[i]);
      }

      uint64_t crc = crc_calculator;

      CHECK_EQUAL(0x6C40DF5F0B497347U, crc);
    }

    //*************************************************************************
    TEST(test_crc64_ecma_add_range)
    {
      std::string data("123456789");

      etl::crc64_ecma crc_calculator;

      crc_calculator.add(data.begin(), data.end());

      uint64_t crc = crc_calculator.value();

      CHECK_EQUAL(0x6C40DF5F0B497347U, crc);
    }

    //*************************************************************************
    TEST(test_crc64_ecma_add_range_endian)
    {
      std::vector<uint8_t>  data1 = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 };
      std::vector<uint32_t> data2 = { 0x04030201, 0x08070605 };
      std::vector<uint8_t>  data3 = { 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01 };

      uint64_t crc1 = etl::crc64_ecma(data1.begin(), data1.end());
      uint64_t crc2 = etl::crc64_ecma((uint8_t*)&data2[0], (uint8_t*)(&data2[0] + data2.size()));
      CHECK_EQUAL(crc1, crc2);

      uint64_t crc3 = etl::crc64_ecma(data3.rbegin(), data3.rend());
      CHECK_EQUAL(crc1, crc3);
    }
  };
}