/**
  * @return void
  */
 public function testUnsetElementToSort()
 {
     list($parentName, $name, $sibling, $isAfter) = $this->getDataSort();
     $this->model->setElementToSortList($parentName, $name, $sibling, $isAfter);
     $this->assertArrayHasKey($name, $this->model->getListToSort());
     $this->model->unsetElementToSort($name);
     $this->assertArrayNotHasKey($name, $this->model->getListToSort());
 }