public function testToAndFromString()
{
$this->rowCount->setText('20');
$this->assertTrue($this->rowCount->getText() == '20');
$newRowCount = new Extension\RowCount();
$doc = new \DOMDocument();
$doc->loadXML($this->rowCount->saveXML());
$newRowCount->transferFromDom($doc->documentElement);
$this->assertTrue($this->rowCount->getText() == $newRowCount->getText());
}