public function testSaveNoMarshaller20()
{
$doc = new XMLDocument('2.1.1');
$doc->loadFromString('<assessmentItemRef identifier="Q01" href="./Q01.xml"/>');
$doc->setVersion('2.0');
$expectedMsg = "'assessmentItemRef' components are not supported in QTI version '2.0.0'.";
$this->setExpectedException('\\qtism\\data\\storage\\xml\\XmlStorageException', $expectedMsg);
$str = $doc->saveToString();
}
