/**
  * tests _resNode2Node()
  */
 function test_resNode2NodeTest()
 {
     $_SESSION['test'] = 'ResModel _resNode2Node test';
     $model1 = new MemModel();
     $resmodel = new ResModel($model1);
     $resLit = new ResLiteral('Literal', 'DE');
     $resLit->setDatatype('type');
     $result = $resmodel->_resNode2Node($resLit);
     $this->assertIsA($result, 'Literal');
     $this->assertEqual($result->getLanguage(), 'DE');
     $this->assertEqual($result->getDatatype(), 'type');
     $model1->close();
 }