@Override
  public void broadcastWorkerUUIDs() {
    Set<CeWorker> workers = ceCeWorkerFactory.getWorkers();
    workerUUIDs = workers.stream().map(CeWorker::getUUID).collect(Collectors.toSet());
  }
@Test
  public void broadcastWorkerUUIDs_must_retrieve_from_ceworkerfactory() {
    CeWorkerFactory ceWorkerFactory = mock(CeWorkerFactory.class);
    StandaloneCeDistributedInformation ceCluster = new StandaloneCeDistributedInformation(ceWorkerFactory);

    ceCluster.broadcastWorkerUUIDs();

    verify(ceWorkerFactory).getWorkers();
  }