public function createService()
{
$sm = new ServiceManager();
$sm->setService('Cocur\\Slugify\\Slugify', new Slugify());
$vhm = new HelperPluginManager();
$vhm->setServiceLocator($sm);
$viewHelper = call_user_func($this->factory, $vhm);
$this->assertInstanceOf('Cocur\\Slugify\\Bridge\\ZF2\\SlugifyViewHelper', $viewHelper);
}