'We simply do not specify the option output keyword argument
to crypto_util.encrypt() here in order to confirm encryption
works when it defaults to `None`.'

def test_encrypt_without_output(self):

    (source, codename) = utils.db_helper.init_source()
    message = str(os.urandom(1))
    ciphertext = crypto_util.encrypt(message, [crypto_util.getkey(source.filesystem_id), config.JOURNALIST_KEY])
    plaintext = crypto_util.decrypt(codename, ciphertext)
    self.assertEqual(message, plaintext)
