def test_uppercase_decipher(self):
cipher_suite = VigenereCipher("LEMON")
eq_(cipher_suite.decipher("LXFOPV"), "ATTACK")
def test_lowercase_decipher(self):
cipher_suite = VigenereCipher("lemon")
eq_(cipher_suite.decipher("lxfopv"), "ATTACK")
def test_lowercase_encipher(self):
cipher_suite = VigenereCipher("lemon")
eq_(cipher_suite.encipher("attack"), "LXFOPV")
def test_empty_key(self):
with assert_raises(ValueError):
VigenereCipher("")
with assert_raises(ValueError):
VigenereCipher("123!")
def test_decipher_non_alphabetic_characters(self):
cipher_suite = VigenereCipher(PANGRAM)
eq_(
cipher_suite.decipher("KEOQAU TG BNKSE HNZANC, VSYUA BF ILK!"),
PANGRAM.upper(),
)
def test_encipher_non_alphabetic_characters(self):
cipher_suite = VigenereCipher(PANGRAM)
eq_(cipher_suite.encipher(PANGRAM),
"KEOQAU TG BNKSE HNZANC, VSYUA BF ILK!")
def pytest_funcarg__cipher(request):
return VigenereCipher("TRAIN")