Bbs tests improvements

Issue-ID: INT-1100
Change-Id: I17ad2f3a270cddeaad239d23756500a08e91a200
Signed-off-by: Joanna Jeremicz <joanna.jeremicz@nokia.com>
diff --git a/tests/dcaegen2/prh-testcases/assets/re-registration/ves-event.json b/tests/dcaegen2/prh-testcases/assets/re-registration/ves-event.json
index ef75a88..f02d734 100644
--- a/tests/dcaegen2/prh-testcases/assets/re-registration/ves-event.json
+++ b/tests/dcaegen2/prh-testcases/assets/re-registration/ves-event.json
@@ -33,7 +33,8 @@
       "oamV6IpAddress": "val4",
       "softwareVersion": "val7",
       "additionalFields": {
-        "attachment-point": "another-link"
+        "attachment-point": "another-link",
+        "some-param": "param"
       }
     }
   }