def test_lookupRecordTypeDefault(self):
        """
        L{Message.lookupRecordType} returns C{dns.UnknownRecord} if it is
        called with an integer which doesn't correspond to any known record
        type.
        """
        # 65280 is the first value in the range reserved for private
        # use, so it shouldn't ever conflict with an officially
        # allocated value.
        self.assertIs(dns.Message().lookupRecordType(65280), dns.UnknownRecord)

        L{Message.lookupRecordType} returns C{dns.UnknownRecord} if it is
        called with an integer which doesn't correspond to any known record
        type.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/names/test/test_dns.py