public function initialize(array $config)
    {
        $this->setTable($this->tablePrefix . $this->getTable());
        // HttpClient needs special header HTTP_X_UNIT_TEST_MODE => set in AppCakeTestCase::initHttpClient()
        if (isset($_SERVER['HTTP_X_UNIT_TEST_MODE'])
            || (php_sapi_name() == 'cli' && $_SERVER['argv'][0] && preg_match('/phpunit/', $_SERVER['argv'][0]))) {
            $this->setConnection(ConnectionManager::get('test'));
        }
        parent::initialize($config);
    }