fix(mdns): Add test to check aswer section for service instance

Author: david-cermak

components/mdns/tests/host_test/pytest_mdns.py

@@ -76,6 +76,21 @@ def test_ptr_additional_records_for_service(dig_app):
     dig_app.check_additional(resp, 'TXT', 'test_service._http._tcp.local', expected=True)
 
 
+def test_instance_any_answer_records(dig_app):
+    """Query ANY for the service instance and ensure SRV/TXT are in Answer (Q/A path)."""
+    resp = dig_app.run_query('test_service._http._tcp.local', query_type='ANY')
+
+    # Answer section should contain SRV and TXT records for the instance
+    srv_answers = dig_app.parse_section(resp, 'answer', 'SRV')
+    txt_answers = dig_app.parse_section(resp, 'answer', 'TXT')
+    assert any('test_service._http._tcp.local' in a for a in srv_answers)
+    assert any('test_service._http._tcp.local' in a for a in txt_answers)
+
+    # We should not see a PTR for the generic service name in the Answer section
+    ptr_answers = dig_app.parse_section(resp, 'answer', 'PTR')
+    assert not any('_http._tcp.local' in a for a in ptr_answers)
+
+
 def test_remove_service(mdns_console, dig_app):
     mdns_console.send_input('mdns_service_remove _http _tcp')
     mdns_console.send_input('mdns_service_lookup _http _tcp')