### Question:
ZoomLevelSelectorPresenter { public ZoomLevelSelectorPresenter at(final double x, final double y) { floatingView.setX(x).setY(y); return this; } @Inject  ZoomLevelSelectorPresenter(final ClientTranslationService translationService,
                                      final FloatingView<IsWidget> floatingView,
                                      final ZoomLevelSelector selector); @PostConstruct void construct(); ZoomLevelSelectorPresenter init(final Supplier<LienzoCanvas> canvas); ZoomLevelSelectorPresenter setMinScale(double minScale); ZoomLevelSelectorPresenter setMaxScale(double maxScale); ZoomLevelSelectorPresenter setZoomFactor(double zoomFactor); ZoomLevelSelectorPresenter at(final double x,
                                         final double y); ZoomLevelSelectorPresenter show(); ZoomLevelSelectorPresenter hide(); @PreDestroy void destroy();  }### Answer:
@Test public void testAt() { tested.at(50d, 25d); verify(floatingView, times(1)).setX(eq(50d)); verify(floatingView, times(1)).setY(eq(25d)); }