Tests reading a file containing this ptg.
HSSFWorkbook workbook = loadWorkbook("RangePtg.xls");
HSSFCell cell = workbook.getSheetAt(0).getRow(3).getCell((short) 1);
assertEquals("Wrong cell value", 10.0, cell.getNumericCellValue(), 0.0);
assertEquals("Wrong cell formula", "SUM(pineapple:B2)", cell.getCellFormula());