charmappingpager.clear();
        assertEquals(0, charmappingpager.getAllRecordCount());
        assertEquals(0, charmappingpager.getAllPageCount());
        assertEquals(false, charmappingpager.isExistPrePage());
        assertEquals(false, charmappingpager.isExistNextPage());
        assertEquals(25, charmappingpager.getPageSize());
        assertEquals(1, charmappingpager.getCurrentPageNumber());