def test_calculate_8(self):
## taken from http://www.sunshine2k.de/articles/coding/crc/understanding_crc.html#ch3
crcProc = HwCRC()
crc = crcProc.calculate1(0x112233, 0x107)
self.assertEqual(crc, 0xD4)
crc = crcProc.calculate1(0b11000010, 0b100011101) ## 0xC2 0x11D
self.assertEqual(crc, 0x0F)
crc = crcProc.calculate1(0xA53937C7, 0b100011101) ## 0x011D
self.assertEqual(crc, 0b01011001)
crc = crcProc.calculate1(0xA53937CF, 0b100011101) ## 0x011D
self.assertEqual(crc, 0xB1)
crc = crcProc.calculate1(0xA53937CB, 0b100011101) ## 0x011D
self.assertEqual(crc, 0b11000101)
crc = crcProc.calculate1(0xA53937CE, 0b100011101) ## 0x011D
self.assertEqual(crc, 0b10101100) ## 0xAC
def test_calculate_8_xorOut(self):
crcProc = HwCRC()
crcProc.setXorOutValue(0xA5)
crc = crcProc.calculate1(0xA53937CF, 0x11D)
self.assertEqual(crc, 0x14)
self.assertEqual(crc ^ 0xA5, 0xB1)
def test_calculate_8_regInit(self):
crcProc = HwCRC()
crcProc.setRegisterInitValue(0xA5) ## 0b10100101
crc = crcProc.calculate1(0xA53937CF, 0x11D)
self.assertEqual(crc, 0x1D)
def test_calculate_leading(self):
crcProc = HwCRC()
crc1 = crcProc.calculate1(0b11010011101100, 0b1011)
crc2 = crcProc.calculate1(0b0000011010011101100, 0b1011)
self.assertEqual(crc1, crc2)