public static void checkFromdeltaCounter() {
    assertTrue(
        "FromDelta counters do not match, expected: " + (NO_PUT_OPERATION - 1) + ", actual: "
            + DeltaTestImpl.getFromDeltaInvokations(),
        DeltaTestImpl.getFromDeltaInvokations() >= (NO_PUT_OPERATION - 1));
  }
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