Ensure all active nodes are in contention before relinquishing a partition

Change-Id: I846f810547b286736d26d319f315048398334a83
diff --git a/core/store/dist/src/test/java/org/onosproject/store/intent/impl/IntentPartitionManagerTest.java b/core/store/dist/src/test/java/org/onosproject/store/intent/impl/IntentPartitionManagerTest.java
index 89ee8d3..fb44abd 100644
--- a/core/store/dist/src/test/java/org/onosproject/store/intent/impl/IntentPartitionManagerTest.java
+++ b/core/store/dist/src/test/java/org/onosproject/store/intent/impl/IntentPartitionManagerTest.java
@@ -116,6 +116,11 @@
                                                               allNodes))
                                     .anyTimes();
         }
+        for (int i = 0; i < IntentPartitionManager.NUM_PARTITIONS; i++) {
+            expect(leadershipService.getCandidates(ELECTION_PREFIX + i))
+            .andReturn(Arrays.asList(MY_NODE_ID, OTHER_NODE_ID))
+            .anyTimes();
+        }
     }
 
     /**