'``Big`` can serialize and unserialize argmuments which are larger than
MAX_VALUE_LENGTH.'

def test_roundtrip_large(self):

    big_bytes = u'\n'.join((u'{value}'.format(value=value) for value in range(MAX_VALUE_LENGTH))).encode('ascii')
    self.assert_roundtrips(self.CommandWithBigArgument, big=big_bytes)
