tests: added test for previous case (bad glue, keep suggesting self)

tests/testdata/iter_ns_badglue.rpl

+; config options
+server:
+	target-fetch-policy: "3 2 1 0 0"
+
+stub-zone:
+	name: "."
+	stub-addr: 193.0.14.129 	# K.ROOT-SERVERS.NET.
+CONFIG_END
+
+SCENARIO_BEGIN Test iterator with delagation with bad glue.
+
+; K.ROOT-SERVERS.NET.
+RANGE_BEGIN 0 100
+	ADDRESS 193.0.14.129 
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id
+REPLY QR NOERROR
+SECTION QUESTION
+. IN NS
+SECTION ANSWER
+. IN NS	K.ROOT-SERVERS.NET.
+SECTION ADDITIONAL
+K.ROOT-SERVERS.NET.	IN	A	193.0.14.129
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode subdomain
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+com. IN A
+SECTION AUTHORITY
+; This is the offending NS (it must be ignored)
+com.	IN NS	a.gtld-servers.com.
+com.	IN NS	a.gtld-servers.net.
+SECTION ADDITIONAL
+a.gtld-servers.com.	IN 	A	192.5.6.31
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+a.gtld-servers.net.	IN	A
+SECTION ANSWER
+a.gtld-servers.net.	IN 	A	192.5.6.30
+ENTRY_END
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+a.gtld-servers.net.	IN	AAAA
+SECTION AUTHORITY
+. SOA bla bla 1 2 3 4 5
+ENTRY_END
+RANGE_END
+
+; a.gtld-servers.net.
+RANGE_BEGIN 0 100
+	ADDRESS 192.5.6.30
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id copy_query
+REPLY AA QR NOERROR
+SECTION QUESTION
+www.foo.com. IN A
+SECTION ANSWER
+www.foo.com. 10 IN A	10.20.30.40
+SECTION AUTHORITY
+www.foo.com.	3600 IN NS	a.gtld-servers.net.
+ENTRY_END
+
+RANGE_END
+
+; a.gtld-servers.com.
+RANGE_BEGIN 0 100
+	ADDRESS 192.5.6.31
+
+ENTRY_BEGIN
+MATCH opcode qtype qname
+ADJUST copy_id copy_query
+REPLY QR NOERROR
+SECTION QUESTION
+www.foo.com. IN A
+SECTION AUTHORITY
+com.	IN NS	a.gtld-servers.com.
+SECTION ADDITIONAL
+; Keep suggesting address records for this server
+a.gtld-servers.com.	IN 	A	192.5.6.31
+ENTRY_END
+
+RANGE_END
+
+STEP 1 QUERY
+ENTRY_BEGIN
+REPLY RD
+SECTION QUESTION
+www.foo.com. IN A
+ENTRY_END
+
+; recursion happens here.
+STEP 10 CHECK_ANSWER
+ENTRY_BEGIN
+MATCH all
+REPLY QR RD RA NOERROR
+SECTION QUESTION
+www.foo.com. IN A
+SECTION ANSWER
+www.foo.com. 10 IN A	10.20.30.40
+ENTRY_END
+
+SCENARIO_END