/**
* Returns yaml loader model instance
*
* @param string|null $testCaseClass
* @return EcomDev_PHPUnit_Model_Yaml_Loader
*/
public static function getYamlLoader($testCaseClass = null)
{
if ($testCaseClass !== null) {
self::$yamlLoaderModelAlias = self::getLoadableClassAlias($testCaseClass, 'yaml', self::XML_PATH_DEFAULT_YAML_LOADER_MODEL);
} elseif (self::$yamlLoaderModelAlias === null) {
self::$yamlLoaderModelAlias = self::getLoadableClassAlias(get_called_class(), 'yaml', self::XML_PATH_DEFAULT_YAML_LOADER_MODEL);
}
return Mage::getSingleton(self::$yamlLoaderModelAlias);
}