public void testGetCellComment() {
XSSFWorkbook workbook = new XSSFWorkbook();
CTSheet ctSheet = CTSheet.Factory.newInstance();
CTWorksheet ctWorksheet = CTWorksheet.Factory.newInstance();
CTComments ctComments = CTComments.Factory.newInstance();
CommentsTable sheetComments = new CommentsTable(ctComments);
XSSFSheet sheet = new XSSFSheet(ctSheet, ctWorksheet, workbook, sheetComments);
assertNotNull(sheet);
CTComment ctComment = ctComments.addNewCommentList().insertNewComment(0);
ctComment.setRef("C10");
ctComment.setAuthorId(sheetComments.findAuthor("test C10 author"));
assertNotNull(sheet.getCellComment(9, 2));
assertEquals("test C10 author", sheet.getCellComment(9, 2).getAuthor());
}