Add test for mirror zone additional data

Existing mirror-zone system tests only covered referral glue.
With this commit, we add a test that also checks for non-glue
additional data.

diff --git a/bin/tests/system/mirror/tests_mirror_additionalauth.py b/bin/tests/system/mirror/tests_mirror_additionalauth.py
new file mode 100644 (file)
index 0000000..add2469
--- /dev/null
+++ b/bin/tests/system/mirror/tests_mirror_additionalauth.py
@@ -0,0 +1,72 @@
+# 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.
+
+from re import compile as Re
+
+import dns.name
+import dns.rdataclass
+import dns.rdatatype
+import dns.rrset
+import pytest
+
+import isctest
+
+pytestmark = pytest.mark.extra_artifacts(
+    [
+        "ns*/db-*",
+        "ns*/dsset-*",
+        "ns*/jn-*",
+        "ns*/K*",
+        "ns*/*.conf",
+        "ns*/*.db",
+        "ns*/*.jnl",
+        "ns*/*.mirror",
+        "ns*/*.nzf*",
+        "ns*/*.nzd*",
+        "ns*/*.signed",
+    ]
+)
+
+
+def _rrset(response, section, owner, rdtype):
+    return response.get_rrset(
+        section,
+        dns.name.from_text(owner),
+        dns.rdataclass.IN,
+        rdtype,
+    )
+
+
+def test_mirror_zone_ns_answer_adds_in_zone_address(ns3):
+    with ns3.watch_log_from_start() as watcher:
+        watcher.wait_for_line(Re(r"zone verify-csk/IN: mirror zone is now in use"))
+
+    query = isctest.query.create("verify-csk.", "NS", dnssec=False, rd=False, ad=False)
+    response = isctest.query.udp(query, ns3.ip, source="10.53.0.1")
+
+    isctest.check.noerror(response)
+    isctest.check.noaaflag(response)
+
+    answer = _rrset(response, response.answer, "verify-csk.", dns.rdatatype.NS)
+    expected_answer = dns.rrset.from_text(
+        "verify-csk.", 3600, "IN", "NS", "ns2.verify-csk."
+    )
+    assert answer is not None, response.to_text()
+    isctest.check.rrsets_equal(answer, expected_answer)
+
+    additional = _rrset(
+        response, response.additional, "ns2.verify-csk.", dns.rdatatype.A
+    )
+    expected_additional = dns.rrset.from_text(
+        "ns2.verify-csk.", 3600, "IN", "A", "10.53.0.2"
+    )
+    assert additional is not None, response.to_text()
+    isctest.check.rrsets_equal(additional, expected_additional)