public void stopTest(String userKey, String testId) {
        if (userKey == null || userKey.trim().isEmpty()) {
            BmLog.debug("Test cannot be stopped, userKey is empty");
            return;
        }

        if (testId == null || testId.trim().isEmpty()) {
            BmLog.debug("Test cannot be stopped, testId is empty");
            return;
        }

        String url = this.urlManager.testStop(Constants.APP_KEY, userKey, testId);
        getJson(Methods.POST, url, null);
    }