Prado\Collections\TPriorityList::offsetUnset PHP Метод

    public function offsetUnset($offset)
    {
        $this->removeAt($offset);
    }

 public function testOffsetUnsetTPriorityList()
 {
     $list = new TPriorityList();
     $list->add(2);
     $list->add(1, 5);
     $list->add(3, 15);
     $list->offsetUnset(1);
     self::assertEquals(array(1, 3), $list->toArray());
 }