public function testGetElement()
 {
     $pl = new ElggPriorityList();
     $priorities = array();
     $elements = array('Test element 0', 'Test element 1', 'Test element 2');
     foreach ($elements as $element) {
         $priorities[] = $pl->add($element);
     }
     $this->assertSame($elements[0], $pl->getElement($priorities[0]));
     $this->assertSame($elements[1], $pl->getElement($priorities[1]));
     $this->assertSame($elements[2], $pl->getElement($priorities[2]));
 }