assertSame(sheet2, workbook.getSheetAt(1));
workbook.setSheetOrder("sheet2", 0);
assertSame(sheet2, workbook.getSheetAt(0));
assertSame(sheet1, workbook.getSheetAt(1));
// Test reordering of CTSheets
CTWorkbook ctwb = workbook.getCTWorkbook();
CTSheet[] ctsheets = ctwb.getSheets().getSheetArray();
assertEquals("sheet2", ctsheets[0].getName());
assertEquals("sheet1", ctsheets[1].getName());
// Borderline case: only one sheet
workbook = new XSSFWorkbook();