### Question:
ProjectDiagramResourceServiceImpl implements ProjectDiagramResourceService { @PostConstruct public void init() { saveAndRenameService.init(this); } ProjectDiagramResourceServiceImpl(); @Inject  ProjectDiagramResourceServiceImpl(final ProjectDiagramService projectDiagramService,
                                             final RenameService renameService,
                                             final SaveAndRenameServiceImpl<ProjectDiagramResource, Metadata> saveAndRenameService); @PostConstruct void init(); @Override Path save(final Path path,
                     final ProjectDiagramResource resource,
                     final Metadata metadata,
                     final String comment); @Override Path rename(final Path path,
                       final String newName,
                       final String comment); @Override Path saveAndRename(final Path path,
                              final String newFileName,
                              final Metadata metadata,
                              final ProjectDiagramResource resource,
                              final String comment);  }### Answer:
@Test public void testInit() { service.init(); verify(saveAndRenameService).init(service); }