@Override
  public void onServerStart(Server server) {
    if (!done) {
      initCe();
      this.done = true;
    }
  }
@Test
  public void clean_queue_then_start_scheduler_of_workers() {
    underTest.onServerStart(server);

    verify(processingScheduler).startScheduling();
    verify(cleaningScheduler).startScheduling();
  }