public void setUp() throws Exception { // TODO Auto-generated method stub super.setUp(); table = (UIScrollableDataTable) application.createComponent(UIScrollableDataTable.COMPONENT_TYPE); facesContext.getViewRoot().getChildren().add(table); table.setId("zzz"); for (int i = 0; i < 10; i++) { UIComponent column = MockColumns.newColumn("zzz" + i); UIOutput output = new UIOutput(); output.setId("h" + i); column.getFacets().put("header", output); table.getChildren().add(column); } }