3396. [bug] OPT records were incorrectly removed from signed,

truncated responses. [RT #31439]

bin/tests/system/tsig/tests.sh

@@ -222,6 +222,17 @@ if [ $ret -eq 1 ] ; then
 	echo "I: failed"; status=1
 fi
 
+echo "I:checking both OPT and TSIG records are returned when TC=1"
+ret=0
+$DIG +ignore +bufsize=512 large.example.nil \
+	-y "hmac-sha1:sha1:$sha1" @10.53.0.1 txt -p 5300 > dig.out.large 2>&1 || ret=1
+grep "flags:.* tc[ ;]" dig.out.large > /dev/null || ret=1
+grep "status: NOERROR" dig.out.large > /dev/null || ret=1
+grep "EDNS:" dig.out.large > /dev/null || ret=1
+grep -i "sha1.*TSIG.*NOERROR" dig.out.sha1 > /dev/null || ret=1
+if [ $ret -eq 1 ] ; then
+	echo "I: failed"; status=1
+fi
 exit $status