def test_crcmod_8_random(self):
data = NumberMask(random.randint(1, 0xFFFFFFFFFFFFFFFF), 64)
crcSize = 8
crcMax = 2**crcSize - 1
inputPoly = NumberMask((0x1 << crcSize) | random.randint(1, crcMax),
crcSize)
# regInit = random.randint(0, crcMax)
# xorOut = random.randint(0, crcMax)
regInit = 0x0
xorOut = 0x0
reverse = bool(random.randint(0, 1))
crc_func = crcmod.mkCrcFun(inputPoly.masterData(),
rev=reverse,
initCrc=regInit,
xorOut=xorOut)
crcLib = crc_func(data.toASCII())
# print "crc: {:X} {:X}".format( crc, crc2 )
crcProc = ModCRC()
crcProc.setReversed(reverse)
crcProc.setXorOutValue(xorOut)
crcProc.setInitCRC(regInit, crcSize)
crc = crcProc.calculate3(data, inputPoly)
self.assertEqual(crc, crcLib)
def test_crcmod_8rohc(self):
data = NumberMask(0xF00F, 16)
inputPoly = NumberMask(0x107, 8)
regInit = 0xFF
xorOut = 0x0
crc_func = crcmod.predefined.mkCrcFun('crc-8-rohc') ## rev
crcLib = crc_func(data.toASCII())
crcProc = ModCRC()
crcProc.setReversed()
crcProc.setRegisterInitValue(regInit)
crcProc.setXorOutValue(xorOut)
crc = crcProc.calculate3(data, inputPoly)
# print "crcx: {:b} {:b}".format( crcLib, crc )
self.assertEqual(crc, crcLib)
def test_crcmod_8rev_init(self):
data = NumberMask(0xFF0F, 16)
inputPoly = NumberMask(0x181, 8)
regInit = 0x0F
xorOut = 0x0
crc_func = crcmod.mkCrcFun(inputPoly.masterData(),
initCrc=regInit,
rev=True,
xorOut=xorOut)
crcLib = crc_func(data.toASCII())
crcProc = ModCRC()
crcProc.setReversed()
crcProc.setRegisterInitValue(regInit)
crcProc.setXorOutValue(xorOut)
crc = crcProc.calculate3(data, inputPoly)
# print "crcx: {:b} {:b}".format( crc, crcLib )
self.assertEqual(crc, crcLib)
def test_crcmod_8darc(self):
data = NumberMask(0x01, 8)
inputPoly = NumberMask(0x139, 8)
regInit = 0x0
xorOut = 0x0
crc_func = crcmod.predefined.mkCrcFun('crc-8-darc')
crcLib = crc_func(data.toASCII())
crcProc = ModCRC()
crcProc.setReversed()
crcProc.setRegisterInitValue(regInit)
crcProc.setXorOutValue(xorOut)
revData = data.reorderedBytes()
crc = crcProc.calculate3(revData, inputPoly)
# print "crcx: {:b} {:b}".format( crc, crcLib )
self.assertEqual(crc, crcLib)
def test_crcmod_8rev_symm(self):
data = NumberMask(0xFF, 8)
inputPoly = NumberMask(0x181, 8) ## leave symmetric
regInit = 0x0
xorOut = 0x0
crc_func = crcmod.mkCrcFun(inputPoly.masterData(),
initCrc=regInit,
rev=True,
xorOut=xorOut)
crcLib = crc_func(data.toASCII())
crcProc = ModCRC()
crcProc.setReversed()
crcProc.setRegisterInitValue(regInit)
crcProc.setXorOutValue(xorOut)
revData = data.reorderedBytes()
revPoly = inputPoly.reversed()
crc = crcProc.calculate3(revData, revPoly)
# print "crcx: {:b} {:b}".format( crc, crcLib )
self.assertEqual(crc, crcLib)