protected function firedOnlyOne($event, $path)
    {
        if ($test = $this->dataRepository->isTestFile($path)) {
            if ($test->sha1Changed() && !$this->dataRepository->isEnqueued($test)) {
                $this->dataRepository->addTestToQueue($test);

                $this->showProgress('QUEUE: test added to queue');
            }

            return true;
        }

        return false;
    }