@Override
        public void afterCreate(EntryEvent event) {
          create++;
          if (LAST_KEY.equals(event.getKey())) {
            lastKeyReceived = true;
          }
        }
This test does the following for single key (<b> full cycle</b>):<br>
1)Verifies that client-server, peer-peer and server-client processing delta<br>
geode-cq/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/ClientToServerDeltaDUnitTest.java