def test_encryptAndDecrypt_returnsSamePassword(self):
security = Security()
result = security.encrypt("A12345", "a")
decryptResult = security.decrypt(result, "a")
self.assertEqual(decryptResult, b'A12345')
def test_encryptAndDecrypt_returnsincorrectpasword(self):
security = Security()
result = security.encrypt("A12345", "a")
decryptResult = security.decrypt(result, "a")
self.assertNotEqual(decryptResult, b'S12345')
