VOL-2710: Add unit test cases for kafka-onos

Change-Id: Ieff0a32b3552eb8843fa933e57fa4148cb54853b
diff --git a/src/main/java/org/opencord/kafka/integrations/BngStatsKafkaIntegration.java b/src/main/java/org/opencord/kafka/integrations/BngStatsKafkaIntegration.java
index e20ecbb..32f901b 100644
--- a/src/main/java/org/opencord/kafka/integrations/BngStatsKafkaIntegration.java
+++ b/src/main/java/org/opencord/kafka/integrations/BngStatsKafkaIntegration.java
@@ -56,7 +56,7 @@
     protected volatile BngStatsService ignore;
     private final AtomicReference<BngStatsService> bngStatsServiceRef = new AtomicReference<>();
 
-    private static final String TOPIC_STATS = "bng.stats";
+    protected static final String TOPIC_STATS = "bng.stats";
     private static final String SUBSCRIBER_S_TAG = "sTag";
     private static final String SUBSCRIBER_C_TAG = "cTag";