}
            final String docId = docIdObj.toString();
            final String queryId = request.getParameter("queryId");

            final String[] docIds = userInfoHelper.getResultDocIds(URLDecoder.decode(queryId, Constants.UTF_8));
            if (docIds == null) {
                throw new WebApiException(HttpServletResponse.SC_BAD_REQUEST, "No searched urls.");
            }

        UserInfoHelper userInfoHelper = new UserInfoHelper();
        MockletHttpServletRequest request = getMockRequest();

        String[] docIds = userInfoHelper.getResultDocIds("nonExistentQuery");
        assertEquals(0, docIds.length);
    }

    public void test_setters() {
        UserInfoHelper userInfoHelper = new UserInfoHelper();

     *
     * @param queryId the unique identifier for the search query
     * @return an array of document IDs, or an empty array if not found
     */
    public String[] getResultDocIds(final String queryId) {
        return LaRequestUtil.getOptionalRequest().map(req -> req.getSession(false)).map(session -> {
            final Map<String, String[]> resultUrlCache = getResultDocIdsCache(session);