[master] add regression test for RT #41518

4297.	[test]		Ensure delegations in RPZ zones fail robustly.
			[RT #41518]

CHANGES

+4297.	[test]		Ensure delegations in RPZ zones fail robustly.
+			[RT #41518]
+
 4296.	[bug]		TCP packet sizes were calculated incorrectly in the
 			stats channel; they could be counted in the wrong
 			histogram bucket. [RT #40587]

bin/tests/system/rpz/ns3/base.db

@@ -12,10 +12,6 @@
 ; OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 ; PERFORMANCE OF THIS SOFTWARE.
 
-; $Id$
-
-
-
 ; RPZ test
 ;   This basic file is copied to several zone files before being used.
 ;   Its contents are also changed with nsupdate
@@ -25,3 +21,5 @@ $TTL	300
 @	SOA	blx.  hostmaster.ns.blx. ( 1 3600 1200 604800 60 )
 	NS	ns.tld3.
 
+; regression testing for some old crashes
+example.com     NS	example.org.

bin/tests/system/rpz/tests.sh

@@ -642,5 +642,9 @@ $RNDCCMD $ns7 reload policy2
 $DIG z.x.servfail -p 5300 @$ns7 > dig.out.ns7
 grep NXDOMAIN dig.out.ns7 > /dev/null || setret I:failed;
 
+echo "I:checking rpz with delegation fails correctly"
+$DIG -p 5300 @$ns3 ns example.com > dig.out.delegation
+grep "status: SERVFAIL" dig.out.delegation > /dev/null || setret "I:failed"
+
 echo "I:exit status: $status"
 exit $status