getActiveSheet(); $helper = new HtmlHelper(); $html = '

'; $richValue = $helper->toRichTextObject($html); self::assertCount(0, $richValue->getRichTextElements()); $sheet->getCell('A1')->setValue($richValue); $robj = $this->writeAndReload($spreadsheet, 'Xls'); $spreadsheet->disconnectWorksheets(); $sheet0 = $robj->getActiveSheet(); self::assertNull($sheet0->getCell('A1')->getValue(), 'empty text object has been changed to null'); $robj->disconnectWorksheets(); } }