protected function _setupConfiguration(Configuration $config)
{
$config->setMetadataCacheImpl(new ArrayCache());
$config->setQueryCacheImpl(new ArrayCache());
$config->setProxyDir($GLOBALS['TESTS_TEMP_DIR']);
$config->setProxyNamespace('Proxy');
$config->setMetadataDriverImpl($this->_getMappingDriver());
return $config;
}