def test_default_encode_decode(self):
'''
Creates a 20 char long word. Cipher and decipher this message with
default parameters. If ciphered and original word different and deciphered
and original word is same as deciphered word, test is passed.
'''
all_letters = string.ascii_letters + '''0 123/45\t6\n789.,?!:"';'''
cipher = Enigma()
for _ in range(50):
word = random.choices(all_letters, k=20)
word = ''.join(word)
encoded = cipher.cipher(word)
decoded = cipher.decipher(encoded)
self.assertNotEqual(encoded, word)
self.assertEqual(word, decoded)
def test_offsets_encode_decode(self):
'''
Creates a 20 char long word. Cipher and decipher this message with
random offset selections. If ciphered and original word different
and deciphered and original word is same as deciphered word, test is passed.
'''
all_letters = string.ascii_letters + '''0 123/45\t6\n789.,?!:"';'''
for _ in range(50):
offsets = random.choices(range(len(all_letters)), k=3)
cipher = Enigma(offsets=offsets)
word = random.choices(all_letters, k=20)
word = ''.join(word)
encoded = cipher.cipher(word)
decoded = cipher.decipher(encoded)
self.assertNotEqual(encoded, word)
self.assertEqual(word, decoded)