1 # Copyright (C) Internet Systems Consortium, Inc. ("ISC") 2 # 3 # SPDX-License-Identifier: MPL-2.0 4 # 5 # This Source Code Form is subject to the terms of the Mozilla Public 6 # License, v. 2.0. If a copy of the MPL was not distributed with this 7 # file, you can obtain one at https://mozilla.org/MPL/2.0/. 8 # 9 # See the COPYRIGHT file distributed with this work for additional 10 # information regarding copyright ownership. 11 12 import pytest 13 14 pytest.importorskip("dns", minversion="2.7.0") 15 16 import isctest 17 18 19 # The query answer sent with compression disabled should have a size that is 20 # about twice as large as the answer with compression enabled, while 21 # maintaining identical content. 22 def test_names(): 23 msg = isctest.query.create("example.", "MX") 24 # Getting message size with compression enabled 25 res_enabled = isctest.query.tcp(msg, ip="10.53.0.1", source="10.53.0.1") 26 # Getting message size with compression disabled 27 res_disabled = isctest.query.tcp(msg, ip="10.53.0.1", source="10.53.0.2") 28 # Checking if responses are identical content-wise 29 isctest.check.rrsets_equal(res_enabled.answer, res_disabled.answer) 30 # Checking if message with compression disabled is significantly (say 70%) larger 31 assert len(res_disabled.wire) > len(res_enabled.wire) * 1.7 32
Indexes created Sat Feb 28 05:31:39 UTC 2026