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714693742e
A named bug scrap the cache on a second reload after an initial reload failure. Adds a test checking that the cache is preserved between server reconfiguration/reloads even if it fails at some point (after attempting to re-use the cache) and the server is re-loaded later.
39 lines
1.4 KiB
Python
39 lines
1.4 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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import time
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import isctest
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def test_resolver_cache_reloadfails(ns1, templates):
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ns1.rndc("flush")
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msg = isctest.query.create("www.example.org.", "A")
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res = isctest.query.udp(msg, "10.53.0.1")
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isctest.check.noerror(res)
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assert res.answer[0].ttl == 300
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templates.render("ns1/named.conf", {"wrongoption": True})
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try:
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# The first reload fails, and the old cache list will be preserved
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ns1.rndc("reload")
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except isctest.rndc.RNDCException:
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templates.render("ns1/named.conf", {"wrongoption": False})
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# The second reload succeed, and the cache is still there, as preserved
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# from the old cache list
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ns1.rndc("reload")
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time.sleep(3)
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msg = isctest.query.create("www.example.org.", "A")
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res = isctest.query.udp(msg, "10.53.0.1")
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isctest.check.noerror(res)
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# The ttl being lower than 300 (provided by fake authoritative) proves
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# the cache is still in use
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assert res.answer[0].ttl < 300
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