Alex\BehatLauncher\Behat\MysqlStorage::saveOutputFiles PHP Method

    private function saveOutputFiles(OutputFileList $list)
    {
        foreach ($list as $outputFile) {
            if ($outputFile->getId() || !$outputFile->exists()) {
                continue;
            }
            do {
                $id = md5(uniqid() . microtime(true));
            } while (file_exists($path = $this->getOutputFilePath($id)));
            $outputFile->moveTo($path)->setId($id);
        }
    }