public function testInitalizationAndSingleton()
{
$instanceB = Wikia\UI\Factory::getInstance();
$this->assertEquals($this->instance, $instanceB);
}
/**
* @desc Constructor creates instance of Wikia\UI\Factory and loads components names from FS
*/
public function __construct()
{
$this->uiFactory = Wikia\UI\Factory::getInstance();
$this->userLangCode = F::app()->wg->Lang->getCode();
static::$componentsNames = WikiaDataAccess::cache(wfSharedMemcKey(__CLASS__, 'components_names_list', self::MEMCACHE_VERSION_KEY, $this->userLangCode), \Wikia\UI\Factory::MEMCACHE_EXPIRATION, ['StyleguideComponents', 'loadComponentsFromFileSystem']);
}