@Test
    public void test_store_and_getSearchParameters() {
        getMockRequest().setParameter("q", "test");
        getMockRequest().setParameter("lang", new String[] { "en", "ja" });
        searchHelper.storeSearchParameters();
        Cookie[] cookies = getMockResponse().getCookies();
        boolean found = false;
        for (Cookie cookie : cookies) {
            if ("FESS_SEARCH_PARAM".equals(cookie.getName())) {