@Override
  public List<String> getWorkerUuids() {
    Set<CeWorker> workers = ceWorkerFactory.getWorkers();
    return workers.stream()
      .map(CeWorker::getUUID)
      .sorted()
      .toList();
  }
@Test
  public void getWorkerUuids_returns_ordered_list_of_uuids_of_worker_from_CeWorkerFactory_instance() {
    List<String> workerUuids = underTest.getWorkerUuids();

    assertThat(workerUuids).
      isEqualTo(WORKERS.stream().map(CeWorker::getUUID).sorted().toList())
      // ImmutableSet can not be serialized
      .isNotInstanceOf(ImmutableSet.class);
  }