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

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

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

        userInfoHelper.setResultDocIdsCacheSize(50);