### Question:
FileBackedBackendServicesRegistry extends AbstractStyxService implements Registry<BackendService>, FileChangeMonitor.Listener { @Override public Iterable<BackendService> get() { return this.fileBackedRegistry.get(); } @VisibleForTesting  FileBackedBackendServicesRegistry(FileBackedRegistry<BackendService> fileBackedRegistry, FileMonitor fileChangeMonitor); @VisibleForTesting  FileBackedBackendServicesRegistry(Resource originsFile, FileMonitor fileChangeMonitor); static FileBackedBackendServicesRegistry create(String originsFile); @Override Registry<BackendService> addListener(ChangeListener<BackendService> changeListener); @Override Registry<BackendService> removeListener(ChangeListener<BackendService> changeListener); @Override CompletableFuture<ReloadResult> reload(); @Override Iterable<BackendService> get(); @Override CompletableFuture<Void> stop(); @Override void fileChanged(); @Override String toString();  }### Answer:
@Test public void relaysGetToRegistryDelegate() { FileBackedRegistry<BackendService> delegate = mock(FileBackedRegistry.class); registry = new FileBackedBackendServicesRegistry(delegate, FileMonitor.DISABLED); registry.get(); verify(delegate).get(); }