def test_arg_astringInvalidLiteralSize(self):
        """
        A non-integral string literal size raises
        L{imap4.IllegalClientResponse}.
        """
        self.assertRaises(imap4.IllegalClientResponse,
                          self.server.arg_astring, b'{[object Object]}')

        A non-integral string literal size raises
        L{imap4.IllegalClientResponse}.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/mail/test/test_imap.py