def test05_decimal_to_binary(self):
msg = "Testing basic decimal-to-binary conversion"
self.assertEqual(bn.decimal_to_binary(5), "00000101", msg)
self.assertEqual(bn.decimal_to_binary(-10), "11110110", msg)
self.assertEqual(bn.decimal_to_binary(-37), "11011011", msg)
with self.assertRaises(OverflowError):
bn.decimal_to_binary(150)
with self.assertRaises(OverflowError):
bn.decimal_to_binary(-132)
def hex_to_binary(number):
"""
Convert a hexadecimal number to 16-bit binary.
TODO: Implement this function.
:param number: A hexadecimal string, the number to convert
:return: A bitstring representing the converted number
"""
bin_str = ""
num = "0"
d = {
'0': 0,
'1': 1,
'2': 2,
'3': 3,
'4': 4,
'5': 5,
'6': 6,
'7': 7,
'8': 8,
'9': 9
}
concat_str = number[2:]
for str_piece in concat_str:
if str_piece == "A":
bin_str = bin_str + "1010"
elif str_piece == "B":
bin_str = bin_str + "1011"
elif str_piece == "C":
bin_str = bin_str + "1100"
elif str_piece == "D":
bin_str = bin_str + "1101"
elif str_piece == "E":
bin_str = bin_str + "1110"
elif str_piece == "F":
bin_str = bin_str + "1111"
else:
num = d[str_piece]
bin_str = bin_str + binary.decimal_to_binary(num)[4:]
return bin_str
def test05_decimal_to_binary(self):
msg = "Testing basic decimal-to-binary conversion"
self.assertEqual(bn.decimal_to_binary(5), "00000101", msg)
def test16_decimal_to_binary(self):
msg = "Testing basic decimal-to-binary conversion"
with self.assertRaises(OverflowError):
bn.decimal_to_binary(128)
def test15_decimal_to_binary(self):
msg = "Testing basic decimal-to-binary conversion"
self.assertEqual(bn.decimal_to_binary(-128), "10000000", msg)
def test14_decimal_to_binary(self):
msg = "Testing basic decimal-to-binary conversion"
self.assertEqual(bn.decimal_to_binary(127), "01111111", msg)