public function __construct($name = null, array $data = array(), $dataName = '', array $browser = array())
 {
     parent::__construct($name, $data, $dataName, $browser);
     $this->_testSubscriberBaseURL = getenv("TEST_SUBSCRIBER_BASE_URL");
     /* read the config to setup the tokens and base urls */
     $this->_xfabricBearerToken = Mage::getConfig()->getNode("default/xfabric/connection_settings/authorizations/xfabric/bearer_token");
     $this->_baseUrl = Mage::getBaseUrl(Mage_Core_Model_Store::URL_TYPE_WEB);
     $this->_avroEncoding = Mage::getConfig()->getNode("default/xfabric/connection_settings/encoding");
 }