TextTableCellReference reference = new TextTableCellReference("<D6>");
reference.extendColumnRange(2);
Assert.assertEquals("<D6:F6>", reference.toString());
reference = new TextTableCellReference("<D6:F7>");
reference.extendColumnRange(2);
Assert.assertEquals("<D6:H7>", reference.toString());
}
catch(Exception exception) {
Assert.fail(exception.getMessage());
}