from pyModeS import common


def test_conversions():
    assert common.hex2bin('6E406B') == "011011100100000001101011"
    assert common.bin2hex('011011100100000001101011') == "6E406B"
    assert common.int2hex(11160538) == "AA4BDA"

def test_crc_decode():
    assert common.crc_legacy("8D406B902015A678D4D220AA4BDA") == 0

    assert common.crc("8D406B902015A678D4D220AA4BDA") == 0
    assert common.crc('8d8960ed58bf053cf11bc5932b7d') == 0
    assert common.crc('8d45cab390c39509496ca9a32912') == 0
    assert common.crc('8d49d3d4e1089d00000000744c3b') == 0
    assert common.crc('8d74802958c904e6ef4ba0184d5c') == 0
    assert common.crc('8d4400cd9b0000b4f87000e71a10') == 0
    assert common.crc('8d4065de58a1054a7ef0218e226a') == 0

    assert common.crc('c80b2dca34aa21dd821a04cb64d4') == 10719924
    assert common.crc('a800089d8094e33a6004e4b8a522') == 4805588
    assert common.crc('a8000614a50b6d32bed000bbe0ed') == 5659991
    assert common.crc('a0000410bc900010a40000f5f477') == 11727682
    assert common.crc('8d4ca251204994b1c36e60a5343d') == 16
    assert common.crc('b0001718c65632b0a82040715b65') == 353333

def test_crc_encode():
    parity = common.crc("8D406B902015A678D4D220AA4BDA", encode=True)
    assert common.int2hex(parity) == "AA4BDA"

def test_icao():
    assert common.icao("8D406B902015A678D4D220AA4BDA") == "406B90"
    assert common.icao("A0001839CA3800315800007448D9") == '400940'
    assert common.icao("A000139381951536E024D4CCF6B5") == '3C4DD2'
    assert common.icao("A000029CFFBAA11E2004727281F1") == '4243D0'

def test_modes_altcode():
    assert common.altcode("A02014B400000000000000F9D514") == 32300

def test_modes_idcode():
    assert common.idcode("A800292DFFBBA9383FFCEB903D01") == '1346'

def test_graycode_to_altitude():
    assert common.gray2alt('00000000010') == -1000
    assert common.gray2alt('00000001010') == -500
    assert common.gray2alt('00000011011') == -100
    assert common.gray2alt('00000011010') == 0
    assert common.gray2alt('00000011110') == 100
    assert common.gray2alt('00000010011') == 600
    assert common.gray2alt('00000110010') == 1000
    assert common.gray2alt('00001001001') == 5800
    assert common.gray2alt('00011100100') == 10300
    assert common.gray2alt('01100011010') == 32000
    assert common.gray2alt('01110000100') == 46300
    assert common.gray2alt('01010101100') == 50200
    assert common.gray2alt('11011110100') == 73200
    assert common.gray2alt('10000000011') == 126600
    assert common.gray2alt('10000000001') == 126700