def test_InvModHex(test_data_dir):
#Reading test data from the file
with open(test_data_dir / "testData_InvModHex", "r") as invModHex_txt:
for x in invModHex_txt:
hexNumber = x.split(",")
# Inverse modulo of big numbers of arbitrary precision in hex
actual_value = PyBigNumbers.Inv_mod_Hex(hexNumber[0], hexNumber[1])
expected_value = hexNumber[2].rstrip("\n")
#verifying the actual value with the expected value
assert actual_value.lstrip(
"0") == expected_value.upper(), "Test failed"
def inverse(self):
if (self.isDec):
if (self.mod is None):
numerator = BigNumber('1', self.mod, self.isDec)
inverseVal = numerator / self
else:
inverseVal = PyBigNumbers.Inv_mod_Dec(self.value, self.mod)
retVal = BigNum(inverseVal, self.mod, self.isDec)
return retVal
else:
if (self.mod is None):
numerator = BigNumber('1', self.mod)
inverseVal = numberator % self
else:
inverseVal = PyBigNumbers.Inv_mod_Hex(self.value, self.mod)
retVal = BigNum(inverseVal, self.mod, self.isDec)
return retVal