From b4694e7551b0bd2b0380eb398dde167c89ac80f5 Mon Sep 17 00:00:00 2001
From: Mark Andrews <marka@isc.org>
Date: Mon, 28 Aug 2023 11:40:46 +1000
Subject: [PATCH] Check that removal of nonexistent PTR and SRV records work

There was a bug in rr_exists that caused it to fail when the
name didn't exist in the zone.

(cherry picked from commit 2b7192c5be69486fea8dd45b07edae39658eecde)
---
 bin/tests/system/nsupdate/tests.sh | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/bin/tests/system/nsupdate/tests.sh b/bin/tests/system/nsupdate/tests.sh
index 50dadce747..44830d4b25 100755
--- a/bin/tests/system/nsupdate/tests.sh
+++ b/bin/tests/system/nsupdate/tests.sh
@@ -462,6 +462,28 @@ fi
 
 echo_i "end RT #482 regression test"
 
+n=$((n + 1))
+ret=0
+echo_i "remove nonexistent PTR record ($n)"
+$NSUPDATE -k ns1/ddns.key -d << EOF > nsupdate.out.test$n 2>&1 || ret=1
+server 10.53.0.1 ${PORT}
+zone example.nil.
+update delete nonexistent.example.nil. 0 IN PTR foo.
+send
+EOF
+[ $ret = 0 ] || { echo_i "failed"; status=1; }
+
+n=$((n + 1))
+ret=0
+echo_i "remove nonexistent SRV record ($n)"
+$NSUPDATE -k ns1/ddns.key -d << EOF > nsupdate.out.test$n 2>&1 || ret=1
+server 10.53.0.1 ${PORT}
+zone example.nil.
+update delete nonexistent.example.nil. 0 IN SRV 0 0 0 foo.
+send
+EOF
+[ $ret = 0 ] || { echo_i "failed"; status=1; }
+
 n=$((n + 1))
 ret=0
 echo_i "start NSEC3PARAM changes via UPDATE on a unsigned zone test ($n)"