def test__left_shift(self):
input = 0b01000011
expected_result = 0b00001101
poly = gf._cache.fetch_int(input)
result = AES._left_shift(poly, 2)
self.assertEquals(expected_result, int(result._int_repr()))
input = 0b00110011
expected_result = 0b11001100
poly = gf._cache.fetch_int(input)
result = AES._left_shift(poly, 2)
self.assertEquals(expected_result, int(result._int_repr()))
input = 0b11111111
expected_result = 0b0
poly = gf._cache.fetch_int(input)
result = AES._left_shift(poly, 2)
self.assertEquals(expected_result, int(result._int_repr()))
input = 0b0
expected_result = input
poly = gf._cache.fetch_int(input)
result = AES._left_shift(poly, 2)
self.assertEquals(expected_result, int(result._int_repr()))
