@Override
            public int size() {
                return 0;
            }
        };
        qrList.calculatePageInfo();
        assertEquals(20, qrList.getPageSize());
        assertEquals(1, qrList.getCurrentPageNumber());
        assertEquals(0, qrList.getAllRecordCount());
        assertEquals(1, qrList.getAllPageCount());
        assertEquals(false, qrList.isExistPrevPage());

        badwordpager.setExistNextPage(true);
        assertTrue(badwordpager.isExistNextPage());
        badwordpager.setPageSize(0);
        assertEquals(25, badwordpager.getPageSize());
        badwordpager.setPageSize(999);
        assertEquals(999, badwordpager.getPageSize());
        badwordpager.setCurrentPageNumber(0);
        assertEquals(1, badwordpager.getCurrentPageNumber());
        badwordpager.setCurrentPageNumber(999);

                assertEquals(1, list.getCurrentPageNumber());
                assertEquals(1, list.getCurrentStartRecordNumber());
                assertEquals(0, list.getOffset());
                assertEquals(10, list.getPageSize());
                assertEquals(0, list.getStart());
                assertEquals("0", list.get(0).get(ID_FIELD));
                assertEquals("9", list.get(9).get(ID_FIELD));
            } else {
                fail();

        assertTrue(dataconfigpager.isExistNextPage());
        dataconfigpager.setPageSize(0);
        assertEquals(25, dataconfigpager.getPageSize());
        dataconfigpager.setPageSize(999);
        assertEquals(999, dataconfigpager.getPageSize());
        dataconfigpager.setCurrentPageNumber(0);
        assertEquals(1, dataconfigpager.getCurrentPageNumber());
        dataconfigpager.setCurrentPageNumber(999);

        assertTrue(charmappingpager.isExistNextPage());
        charmappingpager.setPageSize(0);
        assertEquals(25, charmappingpager.getPageSize());
        charmappingpager.setPageSize(999);
        assertEquals(999, charmappingpager.getPageSize());
        charmappingpager.setCurrentPageNumber(0);
        assertEquals(1, charmappingpager.getCurrentPageNumber());
        charmappingpager.setCurrentPageNumber(999);

        assertTrue(accesstokenpager.isExistNextPage());
        accesstokenpager.setPageSize(0);
        assertEquals(25, accesstokenpager.getPageSize());
        accesstokenpager.setPageSize(999);
        assertEquals(999, accesstokenpager.getPageSize());
        accesstokenpager.setCurrentPageNumber(0);
        assertEquals(1, accesstokenpager.getCurrentPageNumber());
        accesstokenpager.setCurrentPageNumber(999);

        boostdocpager.setExistNextPage(true);
        assertTrue(boostdocpager.isExistNextPage());
        boostdocpager.setPageSize(0);
        assertEquals(25, boostdocpager.getPageSize());
        boostdocpager.setPageSize(999);
        assertEquals(999, boostdocpager.getPageSize());
        boostdocpager.setCurrentPageNumber(0);
        assertEquals(1, boostdocpager.getCurrentPageNumber());
        boostdocpager.setCurrentPageNumber(999);

        assertTrue(crawlinginfopage.isExistNextPage());
        crawlinginfopage.setPageSize(0);
        assertEquals(25, crawlinginfopage.getPageSize());
        crawlinginfopage.setPageSize(999);
        assertEquals(999, crawlinginfopage.getPageSize());
        crawlinginfopage.setCurrentPageNumber(0);
        assertEquals(1, crawlinginfopage.getCurrentPageNumber());
        crawlinginfopage.setCurrentPageNumber(999);

        assertTrue(duplicatehostpager.isExistNextPage());
        duplicatehostpager.setPageSize(0);
        assertEquals(25, duplicatehostpager.getPageSize());
        duplicatehostpager.setPageSize(999);
        assertEquals(999, duplicatehostpager.getPageSize());
        duplicatehostpager.setCurrentPageNumber(0);
        assertEquals(1, duplicatehostpager.getCurrentPageNumber());

    @Override
    protected SearchResult search(final String query, final SearchRequestParams params, final OptionalThing<FessUserBean> userBean) {
        final int pageSize = params.getPageSize();
        LaRequestUtil.getOptionalRequest().ifPresent(request -> {
            request.setAttribute(Constants.REQUEST_PAGE_SIZE, pageSize);
        });