private void createCache(Properties props) throws Exception {
    DistributedSystem ds = getSystem(props);
    cache = CacheFactory.create(ds);
    assertNotNull(cache);
    logger = cache.getLogger();
  }
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