### Question:
RenderKitFactoryWrapper extends RenderKitFactory implements FacesWrapper<RenderKitFactory> { @Override public void addRenderKit(String renderKitId, RenderKit renderKit) { getWrapped().addRenderKit(renderKitId, renderKit); }  @Override abstract RenderKitFactory getWrapped(); @Override void addRenderKit(String renderKitId, RenderKit renderKit); @Override RenderKit getRenderKit(FacesContext context, String renderKitId); @Override Iterator<String> getRenderKitIds();  }### Answer:
@Test public void shouldWrapAddRenderKit() { this.wrapper.addRenderKit(this.renderKitId, this.renderKit); verify(this.wrapped).addRenderKit(this.renderKitId, this.renderKit); }