public function testCrop()
 {
     $this->assertEquals(CropFilter::create()->setLength(128)->apply(urldecode('Mozilla/5.0 (SymbianOS/9.2; U; Series60/3.1 Nokia6120c/4.21; Profile/MIDP-2.0 Configuration/CLDC-1.1 ) AppleWebKit/413 (KHTML, like Gecko) Safari/413')), 'Mozilla/5.0 (SymbianOS/9.2; U; Series60/3.1 Nokia6120c/4.21; Profile/MIDP-2.0 Configuration/CLDC-1.1 ) AppleWebKit/413 (KHTML, l');
 }
 /**
  * @return CropFilter
  **/
 public static function crop()
 {
     return CropFilter::create();
 }