def test_decryption_is_the_opposite_of_encryption(self):
des_obj = DES(b"rando_key_str")
SAMPLE_TEXT = b"abcdefgh"
assert des_obj.decrypt(des_obj.encrypt(SAMPLE_TEXT)) == SAMPLE_TEXT
def test_long_strings_are_truncated_to_eight_characters(self):
""" I'm not entirely sure this is *wanted* behavior, but it is *current* behavior* """
des_obj = DES(b"rando_key_str")
SAMPLE_TEXT = b"abcdefghijklmnopqrstuvwxyz"
assert des_obj.decrypt(des_obj.encrypt(SAMPLE_TEXT)) == SAMPLE_TEXT[0:8]