public function testFacadeEvents()
 {
     $facade = new ShortcodeFacade();
     $facade->addHandler('n', function (ShortcodeInterface $s) {
         return $s->getName();
     });
     $facade->addEventHandler(Events::FILTER_SHORTCODES, new FilterRawEventHandler(array('raw')));
     $this->assertSame('[raw] [n] [/raw]', $facade->process('[raw] [n] [/raw]'));
 }