public static void createKeys(String[] keys) {
    Region region = cache.getRegion(REGION_NAME);
    for (final String key : keys) {
      region.create(key, new DeltaTestImpl());
    }
  }
This test ensures that a server sends delta bytes to a client even if that client is not
interested in that event but is getting the event only because the event satisfies a CQ which
the client has registered with the server.
geode-cq/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/ClientToServerDeltaDUnitTest.java