[ONOS-7216] Creating a test for onos-form-cluster functionality

Change-Id: I67a5a05c30465a56809148e5de5983d1d71045fe
diff --git a/TestON/tests/USECASE/VPLS/VPLSfailsafe/VPLSfailsafe.py b/TestON/tests/USECASE/VPLS/VPLSfailsafe/VPLSfailsafe.py
index a7dfa3b..9778b68 100644
--- a/TestON/tests/USECASE/VPLS/VPLSfailsafe/VPLSfailsafe.py
+++ b/TestON/tests/USECASE/VPLS/VPLSfailsafe/VPLSfailsafe.py
@@ -421,9 +421,8 @@
 
             # Checking if all nodes appear with status READY using 'nodes' command
             main.step( "Checking ONOS nodes." )
-            nodeResults = utilities.retry( main.HA.nodesCheck,
+            nodeResults = utilities.retry( main.Cluster.nodesCheck,
                                            False,
-                                           args=[ main.Cluster.runningNodes ],
                                            sleep=main.timeSleep,
                                            attempts=main.numAttempts )