Inheritance: extends Neos\Eel\FlowQuery\Operations\AbstractOperation
 /**
  * @test
  */
 public function siblingsWillReturnEmptyArrayForSiteNode()
 {
     $context = array($this->siteNode);
     $q = new FlowQuery($context);
     $operation = new SiblingsOperation();
     $operation->evaluate($q, array());
     $output = $q->getContext();
     $this->assertEquals(array(), $output);
 }