public function setUp()
 {
     parent::setUp();
     $this->filter = new NodeNameFilter();
 }
 public function setUp()
 {
     parent::setUp();
     $this->filter = new DateFilter();
 }
 public function setUp()
 {
     parent::setUp();
     $this->filter = new StringFilter();
 }
 public function setUp()
 {
     parent::setUp();
     $this->filter = new BooleanFilter();
 }
 public function setUp()
 {
     parent::setUp();
     $this->filter = new NumberFilter();
 }