public function testNullQueryResult()
{
$term = '[[Some_string_to_query]]';
$description = new ValueDescription(new DIWikiPage($term, NS_MAIN), null);
$query = new Query($description, false, false);
$query->querymode = Query::MODE_INSTANCES;
$description = $query->getDescription();
$namespacesDisjunction = new Disjunction(array_map(function ($ns) {
return new NamespaceDescription($ns);
}, array(NS_MAIN)));
$description = new Conjunction(array($description, $namespacesDisjunction));
$query->setDescription($description);
$this->assertInstanceOf('\\SMWQueryResult', ApplicationFactory::getInstance()->getStore()->getQueryResult($query));
}
