bind9/bin/tests/system/limits/tests_limits.py
Evan Hunt 2588b2a23c Use isctest.query.create across system tests
Rather than using the dnspython's facilities and defaults to create the
queries, use the isctest.query.create function in all the cases that
don't require special handling to have consistent defaults.

(cherry picked from commit 64143ea077)
2025-07-29 16:08:44 -07:00

51 lines
1.5 KiB
Python

# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
#
# SPDX-License-Identifier: MPL-2.0
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, you can obtain one at https://mozilla.org/MPL/2.0/.
#
# See the COPYRIGHT file distributed with this work for additional
# information regarding copyright ownership.
import itertools
import isctest
import pytest
# Everything from getting a big answer to creating an RR set with thousands
# of records takes minutes of CPU and real time with dnspython < 2.0.0.
pytest.importorskip("dns", minversion="2.0.0")
import dns.rrset
@pytest.mark.parametrize(
"name,limit",
[
("1000", 1000),
("2000", 2000),
("3000", 3000),
("4000", 4000),
("a-maximum-rrset", 4091),
],
)
def test_limits(name, limit):
msg_query = isctest.query.create(f"{name}.example.", "A")
res = isctest.query.tcp(msg_query, "10.53.0.1", log_response=False)
iplist = [
f"10.0.{x}.{y}"
for x, y in itertools.islice(itertools.product(range(256), repeat=2), limit)
]
msg_rrset = [dns.rrset.from_text_list(f"{name}.example.", "5M", "IN", "A", iplist)]
assert res.answer == msg_rrset
def test_limit_exceeded():
msg_query = isctest.query.create("5000.example.", "A")
res = isctest.query.tcp(msg_query, "10.53.0.1", log_response=False)
assert res.flags & dns.flags.TC, "TC flag was not set"