return request.getParameter("sdh");
        }

        @Override
        public HighlightInfo getHighlightInfo() {
            return ComponentUtil.getViewHelper().createHighlightInfo();
        }
    }

    /**
     * The request parameters for suggest API.
     */
    protected static class RequestParameter extends SearchRequestParams {

    }

    @Test
    public void test_createHighlightInfo() {
        ViewHelper viewHelper = new ViewHelper();
        viewHelper.init();

        try {
            assertNotNull(viewHelper.createHighlightInfo());
        } catch (Exception e) {
            assertTrue(true);
        }
    }

    @Test
    public void test_updateHighlightInfo() {
        ViewHelper viewHelper = new ViewHelper();