public static Boolean verifyResult() {
    synchronized (EventIDVerificationDUnitTest.class) {
      if (!gotCallback) {
        try {
          EventIDVerificationDUnitTest.class.wait();
        } catch (InterruptedException e) {
          Thread.currentThread().interrupt();
          gotCallback = false;
          e.printStackTrace();
          return Boolean.FALSE;

        }
      }
      gotCallback = false;
    }
    boolean temp = testEventIDResult;
    testEventIDResult = false;
    return temp;

  }
Verify that EventId is prapogated to server in case of region clear. It also checks that peer
nodes also get the same EventID.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/EventIDVerificationDUnitTest.java