### Question:
RegionWidgetTag extends AbstractContextAwareSingletonBeanDependentTag<RenderService> { public RegionWidget getRegionWidget() { return regionWidget; } RegionWidgetTag(); RegionWidget getRegionWidget(); void setRegionWidget(RegionWidget regionWidget); Widget getWidget(); void setWidget(Widget widget); @Override int doStartTag();  }### Answer:
@Test public void getRegionWidget() throws IOException, JspException { RegionWidget regionWidget = new RegionWidgetImpl(); tag.setRegionWidget(regionWidget); assertThat(tag.getRegionWidget(), sameInstance(regionWidget)); }