### Question:
ActivityItemCell extends ListCell<ActivityItem> { public ActivityItemCell() { super(); IconUtils.initFontAwesomeOffline(); fontAwesome = IconUtils.getFontAwesome(); grid = new GridPane(); icon = new Label(); title = new Label(); title.getStyleClass().add(STYLE_CLASS_ITEM_TITLE); dateTime = new Label(); description = new Label(); initializeGrid(); addControlsToGrid(); } ActivityItemCell(); @Override void updateItem(ActivityItem item, boolean empty);  }### Answer:
@Test public void testActivityItemCell() { assertNull(cell.getText()); assertNull(cell.getGraphic()); }