98 lines
2.8 KiB
Python
98 lines
2.8 KiB
Python
# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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#
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# SPDX-License-Identifier: MPL-2.0
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, you can obtain one at https://mozilla.org/MPL/2.0/.
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#
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# See the COPYRIGHT file distributed with this work for additional
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# information regarding copyright ownership.
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from typing import Any, Optional
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import dns.rcode
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import dns.message
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import dns.zone
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import isctest.log
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# compatiblity with dnspython<2.0.0
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try:
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# In dnspython>=2.0.0, dns.rcode.Rcode class is available
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# pylint: disable=invalid-name
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dns_rcode = dns.rcode.Rcode # type: Any
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except AttributeError:
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# In dnspython<2.0.0, selected rcodes are available as integers directly
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# from dns.rcode
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dns_rcode = dns.rcode
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def rcode(message: dns.message.Message, expected_rcode) -> None:
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assert message.rcode() == expected_rcode, str(message)
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def noerror(message: dns.message.Message) -> None:
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rcode(message, dns_rcode.NOERROR)
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def servfail(message: dns.message.Message) -> None:
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rcode(message, dns_rcode.SERVFAIL)
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def rrsets_equal(
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first_rrset: dns.rrset.RRset,
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second_rrset: dns.rrset.RRset,
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compare_ttl: Optional[bool] = False,
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) -> None:
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"""Compare two RRset (optionally including TTL)"""
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def compare_rrs(rr1, rrset):
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rr2 = next((other_rr for other_rr in rrset if rr1 == other_rr), None)
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assert rr2 is not None, f"No corresponding RR found for: {rr1}"
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if compare_ttl:
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assert rr1.ttl == rr2.ttl
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isctest.log.debug(
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"%s() first RRset:\n%s",
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rrsets_equal.__name__,
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"\n".join([str(rr) for rr in first_rrset]),
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)
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isctest.log.debug(
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"%s() second RRset:\n%s",
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rrsets_equal.__name__,
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"\n".join([str(rr) for rr in second_rrset]),
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)
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for rr in first_rrset:
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compare_rrs(rr, second_rrset)
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for rr in second_rrset:
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compare_rrs(rr, first_rrset)
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def zones_equal(
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first_zone: dns.zone.Zone,
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second_zone: dns.zone.Zone,
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compare_ttl: Optional[bool] = False,
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) -> None:
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"""Compare two zones (optionally including TTL)"""
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isctest.log.debug(
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"%s() first zone:\n%s",
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zones_equal.__name__,
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first_zone.to_text(relativize=False),
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)
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isctest.log.debug(
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"%s() second zone:\n%s",
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zones_equal.__name__,
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second_zone.to_text(relativize=False),
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)
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assert first_zone == second_zone
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if compare_ttl:
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for name, node in first_zone.nodes.items():
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for rdataset in node:
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found_rdataset = second_zone.find_rdataset(
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name=name, rdtype=rdataset.rdtype
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)
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assert found_rdataset
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assert found_rdataset.ttl == rdataset.ttl
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