DataSetExplorer implements IsWidget { @PostConstruct public void init() { view.init(this); } @Inject  DataSetExplorer(final Instance<DataSetPanel> panelInstances,
                           final DataSetClientServices clientServices,
                           final View view); @PostConstruct void init(); @Override Widget asWidget(); void show();  }
@Test public void testInit() throws Exception { presenter.init(); verify(view, times(1)).init(presenter); }