def __mul__(self, obj):
if (self.isDec):
if (self.mod is None):
prodVal = PyBigNumbers.multiplyFromDec(self.value, obj.value)
else:
#print ('%s * %s mod %s' % (self.value, obj.value, self.mod))
prodVal = PyBigNumbers.Mul_mod_Dec(self.value, obj.value,
self.mod)
retVal = BigNum(prodVal, self.mod, self.isDec)
return retVal
else:
if (self.mod is None):
prodVal = PyBigNumbers.multiplyFromHex(self.value, obj.value)
else:
#print ('%s * %s mod %s' % (self.value, obj.value, self.mod))
prodVal = PyBigNumbers.Mul_mod_Hex(self.value, obj.value,
self.mod)
retVal = BigNum(prodVal, self.mod, self.isDec)
return retVal
def test_MultiplyHex(test_data_dir):
# Reading test data from the file
with open(test_data_dir / "testData_MultiplyDec", "r") as multiplyHex_txt:
for x in multiplyHex_txt:
decNumber = x.split(",")
#converting decimal to hex-decimal
i = int(decNumber[0])
j = int(decNumber[1])
k = int(decNumber[2].rstrip("\n"))
hex_Value = hex(i).lstrip("0x")
hex_Value2 = hex(j).lstrip("0x")
expected_Value = hex(k).lstrip("0x")
# multiply two big numbers of arbitrary precision in hex
actualValue = PyBigNumbers.multiplyFromHex(str(hex_Value),
str(hex_Value2))
actual_Value = actualValue.lstrip("0")
expectedValue = expected_Value.upper()
# Verifying the actual value with expected value
assert actual_Value == expected_Value.upper(), "Test failed"