}
            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);
    }

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