function doAfterNoDataDisplayed() {
			oTable.detachRowsUpdated(doAfterNoDataDisplayed);

			let oElem = TableQUnitUtils.setFocusOutsideOfTable(assert, "Focus1");
			simulateTabEvent(oElem, false);
			oElem = checkFocus(getColumnHeader(0), assert);
			simulateTabEvent(oElem, false);
			oElem = checkFocus(oTable.getDomRef("noDataCnt"), assert);
			simulateTabEvent(oElem, false);
			checkFocus(document.getElementById("Focus2"), assert);

			done();
		}
Navigates down and back up using the PageUp and PageDown keys, including scrolling, in the row header column, and in the first data column.
Start from the top cell -> to the bottom cell -> to the top cell.

@param {Object} assert QUnit assert object.
@private