assertEquals(1, list.size());
HSSFDataValidation dv = list.get(0);
{
CellRangeAddressList regions = dv.getRegions();
assertEquals(1, regions.countRanges());
CellRangeAddress address = regions.getCellRangeAddress(0);
assertEquals(1, address.getFirstRow());
assertEquals(2, address.getLastRow());
assertEquals(3, address.getFirstColumn());