def test_decode_msg_random_key():
# 'abcdefghijklmnopqrstuvwxyz'
key = '!)"(£*%&><@abcdefghijklmno'
coder = Coder(key)
plaintext = 'calendario'
ciphertext = '"!a£c(!g>d'
assert coder.decrypt(ciphertext) == plaintext
def test_key_is_alphabet_decode_msg():
key = 'abcdefghijklmnopqrstuvwxyz'
coder = Coder(key)
ciphertext = 'test'
plaintext = 'test'
assert coder.decrypt(ciphertext) == plaintext
def test_decode_msg_a_equals_at():
key = '@bcdefghijklmnopqrstuvwxyz'
coder = Coder(key)
plaintext = 'banana'
ciphertext = 'b@n@n@'
assert coder.decrypt(ciphertext) == plaintext
def test_decode_msg_a_equals_b():
key = 'bacdefghijklmnopqrstuvwxyz'
coder = Coder(key)
ciphertext = 'abnbnb'
plaintext = 'banana'
assert coder.decrypt(ciphertext) == plaintext