### Question:
Dispatcher extends FencedRpcEndpoint<DispatcherId> implements
	DispatcherGateway, LeaderContender, SubmittedJobGraphStore.SubmittedJobGraphListener { @Override public CompletableFuture<Acknowledge> shutDownCluster() { closeAsync(); return CompletableFuture.completedFuture(Acknowledge.get()); } Dispatcher(
			RpcService rpcService,
			String endpointId,
			Configuration configuration,
			HighAvailabilityServices highAvailabilityServices,
			SubmittedJobGraphStore submittedJobGraphStore,
			GatewayRetriever<ResourceManagerGateway> resourceManagerGatewayRetriever,
			BlobServer blobServer,
			HeartbeatServices heartbeatServices,
			JobManagerMetricGroup jobManagerMetricGroup,
			@Nullable String metricServiceQueryPath,
			ArchivedExecutionGraphStore archivedExecutionGraphStore,
			JobManagerRunnerFactory jobManagerRunnerFactory,
			FatalErrorHandler fatalErrorHandler,
			HistoryServerArchivist historyServerArchivist); @Override void onStart(); @Override CompletableFuture<Void> onStop(); @Override CompletableFuture<Acknowledge> submitJob(JobGraph jobGraph, Time timeout); @Override CompletableFuture<Collection<JobID>> listJobs(Time timeout); @Override CompletableFuture<Acknowledge> disposeSavepoint(String savepointPath, Time timeout); @Override CompletableFuture<Acknowledge> cancelJob(JobID jobId, Time timeout); @Override CompletableFuture<Acknowledge> stopJob(JobID jobId, Time timeout); @Override CompletableFuture<Acknowledge> rescaleJob(JobID jobId, int newParallelism, RescalingBehaviour rescalingBehaviour, Time timeout); @Override CompletableFuture<ClusterOverview> requestClusterOverview(Time timeout); @Override CompletableFuture<MultipleJobsDetails> requestMultipleJobDetails(Time timeout); @Override CompletableFuture<JobStatus> requestJobStatus(JobID jobId, Time timeout); @Override CompletableFuture<OperatorBackPressureStatsResponse> requestOperatorBackPressureStats(
			final JobID jobId,
			final JobVertexID jobVertexId); @Override CompletableFuture<ArchivedExecutionGraph> requestJob(JobID jobId, Time timeout); @Override CompletableFuture<JobResult> requestJobResult(JobID jobId, Time timeout); @Override CompletableFuture<Collection<String>> requestMetricQueryServicePaths(Time timeout); @Override CompletableFuture<Collection<Tuple2<ResourceID, String>>> requestTaskManagerMetricQueryServicePaths(Time timeout); @Override CompletableFuture<Integer> getBlobServerPort(Time timeout); @Override CompletableFuture<String> triggerSavepoint(
			final JobID jobId,
			final String targetDirectory,
			final boolean cancelJob,
			final Time timeout); @Override CompletableFuture<Acknowledge> shutDownCluster(); @Override void grantLeadership(final UUID newLeaderSessionID); @Override void revokeLeadership(); @Override void handleError(final Exception exception); @Override void onAddedJobGraph(final JobID jobId); @Override void onRemovedJobGraph(final JobID jobId); static final String DISPATCHER_NAME; }### Answer:
@Test public void testShutDownClusterShouldTerminateDispatcher() throws Exception { dispatcher = createAndStartDispatcher(heartbeatServices, haServices, DefaultJobManagerRunnerFactory.INSTANCE); dispatcherLeaderElectionService.isLeader(UUID.randomUUID()).get(); final DispatcherGateway dispatcherGateway = dispatcher.getSelfGateway(DispatcherGateway.class); dispatcherGateway.shutDownCluster().get(); dispatcher.getTerminationFuture().get(); }