###########################################################################
#
# Copyright (c) 2020-2023 Diality Inc. - All Rights Reserved.
#
# THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
# WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
#
# @file    unittests.py
#
# @author  (last)      Dara Navaei
# @date    (last)      22-Feb-2022
# @author  (original)  Peter Lucia
# @date    (original)  11-Nov-2020
#
############################################################################
import test
import sys

from dialin.ui import crc
from dialin.ui.utils import check_can0

MICRO = [8, 9]


def test_python_version():
    """
    tests the current python version compatibility
    @return: None
    """
    test.compare(sys.version_info.major, 3)
    test.compare(sys.version_info.minor, 6)

    test.compare(sys.version_info.micro in MICRO, True)


def test_crc8():
    """
    test case for crc8 method
    @return: None
    """
    str_byte1 = ("4B 43 09 00 14 00 00"
                 "00 00 00 00 00 00 00 00"
                 "00 00 00 00 00 00 00 00"
                 "00 00"  # 9D
                 )

    str_byte2 = ("4C 43 02 00 12 03 00"
                 "00 00 14 00 00 00 00 00"
                 "00 00 00 00 00 00 7F 00"  # 55
                 )

    str_byte3 = ("4A 43 05 00 1C 00 00"
                 "00 00 00 00 00 00 00 00"
                 "00 00 00 00 00 00 6A B6"
                 "99 43 D5 68 6F 44 00 00"
                 "00 00"  # 4F
                 )

    str_byte4 = ("FB 18 07 00 04 00 00"
                 "00 00"  # 7F
                 )

    test.compare(crc.calc_crc8(str_byte1, ' '), '9D')
    test.compare(crc.calc_crc8(str_byte2, ' '), '55')
    test.compare(crc.calc_crc8(str_byte3, ' '), '4F')
    test.compare(crc.calc_crc8(str_byte4, ' '), '7F')


def test_can0():
    """
    tests if the can0 bus driver presents
    @return: None
    """
    ok, msg = check_can0()
    test.compare(ok, True, msg)