def test_calculateCRC_8_b(self):
dataSize = 56
inputPoly = 0x11D
crcSize = 8
regInit = 0x00
xorOut = 0x8F
crc = ModCRC().calculateCRC(0x0D00C0F0FFFFFF,
dataSize,
inputPoly,
crcSize,
init=regInit,
xorout=xorOut)
self.assertEqual(crc, 0x90)
crc = ModCRC().calculateCRC(0x0000C0F0FFFFFF,
dataSize,
inputPoly,
crcSize,
init=regInit,
xorout=xorOut)
self.assertEqual(crc, 0x76)
crc = ModCRC().calculateCRC(0x0E00C0F0FFFFFF,
dataSize,
inputPoly,
crcSize,
init=regInit,
xorout=xorOut)
self.assertEqual(crc, 0x77)
def test_crcmod_32(self):
data = 0x414243
dataSize = 24
inputPoly = 0x104c11db7
regInit = 0x0
xorOut = 0x00
crcSize = 32
# print "XXX {:X} {:X}".format( data, data2)
# barray1 = bytearray.fromhex('{:x}'.format(data))
# barray2 = bytearray.fromhex('{:x}'.format(data2))
# crc32_func = crcmod.mkCrcFun(0x104c11db7, initCrc=regInit, xorOut=xorOut)
crc32_func = crcmod.mkCrcFun(0x104c11db7,
rev=False,
initCrc=regInit,
xorOut=xorOut)
crcLib = crc32_func(intToASCII(data))
crcProc = ModCRC()
crcProc.setRegisterInitValue(regInit)
crcProc.setXorOutValue(xorOut)
crc = crcProc.calculate2(data, dataSize, inputPoly, crcSize)
# print "crc: {:X} {:X}".format( crcLib, crc )
self.assertEqual(crc, crcLib)
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_calculateCRC_8_a(self):
## http://www.sunshine2k.de/coding/javascript/crc/crc_js.html
dataSize = 4 * 8
inputPoly = 0x1D
crcSize = 8
crc = ModCRC().calculateCRC(0x31323334,
dataSize,
inputPoly,
crcSize,
reverse=False)
self.assertEqual(crc, 0xF2)
crc = ModCRC().calculateCRC(0x31323334,
dataSize,
inputPoly,
crcSize,
reverse=True)
self.assertEqual(crc, 0x43)
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_8_xorOut(self):
data = 0xF0
dataSize = 8
inputPoly = 0x100
crcSize = 8
regInit = 0x0F
xorOut = 0xF0
crc_func = crcmod.mkCrcFun(inputPoly,
initCrc=regInit,
rev=False,
xorOut=xorOut)
crcLib = crc_func(intToASCII(data))
crcProc = ModCRC()
crcProc.setXorOutValue(xorOut)
crcProc.setInitCRC(regInit, crcSize)
crc = crcProc.calculate2(data, dataSize, inputPoly, crcSize)
# print "crc: 0x{0:X}[0b{0:b}] 0x{1:X}[0b{1:b}]".format( crc, crcLib )
self.assertEqual(crc, crcLib)
def test_crcmod_8_data(self):
data = 0xF0FF
dataSize = 16
inputPoly = 0x181 ## leave symmetric
crcSize = 8
regInit = 0x0
xorOut = 0x0
crc_func = crcmod.mkCrcFun(inputPoly,
initCrc=regInit,
rev=False,
xorOut=xorOut)
crcLib = crc_func(intToASCII(data))
crcProc = ModCRC()
crcProc.setRegisterInitValue(regInit)
crcProc.setXorOutValue(xorOut)
crc = crcProc.calculate2(data, dataSize, inputPoly, crcSize)
# print "crc: {:b} {:b}".format( crcLib, crc )
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)