protected function setUp($baseFileDir = null)
	{

		$locator = new FileLocator($baseFileDir);

		$resolver = new LoaderResolver(
			array(
				new PhpArrayFileLoader($locator),
				new JsonFileLoader($locator),
				new YamlFileLoader($locator)
			)
		);

		$this->fileLoader = new DelegatingLoader($resolver);

	}