protected function fetchQueryResult(SMWQuery $query)
 {
     return $this->factory->newSlaveQueryEngine()->getQueryResult($query);
 }
 public function testNewSlaveQueryEngineReturnType()
 {
     $instance = new SQLStoreFactory(new SMWSQLStore3());
     $this->assertInstanceOf('\\SMW\\SQLStore\\QueryEngine\\QueryEngine', $instance->newSlaveQueryEngine());
 }