com.github.pagehelper.rowbounds.test.PageRowBoundsTest.java Source code

Introduction

Here is the source code for com.github.pagehelper.rowbounds.test.PageRowBoundsTest.java

Source

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014-2017 abel533@gmail.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.github.pagehelper.rowbounds.test;

import com.github.pagehelper.PageRowBounds;
import com.github.pagehelper.mapper.CountryMapper;
import com.github.pagehelper.model.Country;
import com.github.pagehelper.rowbounds.RowBoundsHelper;
import org.apache.ibatis.session.SqlSession;
import org.junit.Test;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import static org.junit.Assert.assertEquals;

public class PageRowBoundsTest {

    /**
     * Mapper??RowBounds???xml??
     * <p/>
     * RowBounds??count?Page?
     * <p/>
     * ??startPagestartPage
     */
    @Test
    public void testMapperWithPageRowBounds() {
        SqlSession sqlSession = RowBoundsHelper.getSqlSession();
        CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
        try {
            //?110?count
            PageRowBounds pageRowBounds = new PageRowBounds(0, 10);
            List<Country> list = countryMapper.selectAll(pageRowBounds);
            //PageInfo?
            assertEquals(10, list.size());
            assertEquals(183L, pageRowBounds.getTotal().longValue());
            //??
            assertEquals(1, list.get(0).getId());
            assertEquals(10, list.get(list.size() - 1).getId());

            //?1010??count
            pageRowBounds = new PageRowBounds(90, 10);
            list = countryMapper.selectAll(pageRowBounds);
            assertEquals(10, list.size());
            assertEquals(183L, pageRowBounds.getTotal().longValue());
            //??
            assertEquals(91, list.get(0).getId());
            assertEquals(100, list.get(list.size() - 1).getId());

            //?320?count
            pageRowBounds = new PageRowBounds(100, 20);
            list = countryMapper.selectAll(pageRowBounds);
            assertEquals(20, list.size());
            assertEquals(183L, pageRowBounds.getTotal().longValue());
            //??
            assertEquals(101, list.get(0).getId());
            assertEquals(120, list.get(list.size() - 1).getId());
        } finally {
            sqlSession.close();
        }
    }

    /**
     * ???RowBoundsRowBounds?count
     * ??count??
     * ?count?startPage
     * <p/>
     * ?startPagestartPage?startPage??
     */
    @Test
    public void testNamespaceWithPageRowBounds() {
        SqlSession sqlSession = RowBoundsHelper.getSqlSession();
        try {
            //?010?
            PageRowBounds pageRowBounds = new PageRowBounds(0, 10);
            List<Country> list = sqlSession.selectList("selectAll", null, pageRowBounds);
            assertEquals(10, list.size());
            assertEquals(183L, pageRowBounds.getTotal().longValue());
            //??
            assertEquals(1, list.get(0).getId());
            assertEquals(10, list.get(list.size() - 1).getId());

            //?1010?
            pageRowBounds = new PageRowBounds(90, 10);
            list = sqlSession.selectList("selectAll", null, pageRowBounds);
            assertEquals(10, list.size());
            assertEquals(183L, pageRowBounds.getTotal().longValue());
            //??
            assertEquals(91, list.get(0).getId());
            assertEquals(100, list.get(list.size() - 1).getId());

            //?2020?
            pageRowBounds = new PageRowBounds(100, 20);
            list = sqlSession.selectList("selectAll", null, pageRowBounds);
            assertEquals(20, list.size());
            assertEquals(183L, pageRowBounds.getTotal().longValue());
            //??
            assertEquals(101, list.get(0).getId());
            assertEquals(120, list.get(list.size() - 1).getId());
        } finally {
            sqlSession.close();
        }
    }

    @Test
    public void testNamespaceWithRowBounds2() {
        SqlSession sqlSession = RowBoundsHelper.getSqlSession();
        try {
            //?010?
            PageRowBounds pageRowBounds = new PageRowBounds(0, 10);
            List<Country> list = sqlSession.selectList("selectIf", null, pageRowBounds);
            assertEquals(10, list.size());
            assertEquals(183L, pageRowBounds.getTotal().longValue());
            //??
            assertEquals(1, list.get(0).getId());
            assertEquals(10, list.get(list.size() - 1).getId());

            Map<String, Object> map = new HashMap<String, Object>();
            map.put("id", 10);
            //?1010?
            pageRowBounds = new PageRowBounds(90, 10);
            list = sqlSession.selectList("selectIf", map, pageRowBounds);
            assertEquals(10, list.size());
            assertEquals(173L, pageRowBounds.getTotal().longValue());
            //??
            assertEquals(101, list.get(0).getId());
            assertEquals(110, list.get(list.size() - 1).getId());
        } finally {
            sqlSession.close();
        }
    }

    /**
     * Mapper?PageHelper.startPage??Mapper??
     */
    @Test
    public void testWithRowboundsAndCountTrue() {
        SqlSession sqlSession = RowBoundsHelper.getSqlSession();
        CountryMapper countryMapper = sqlSession.getMapper(CountryMapper.class);
        try {
            //limit=0,?count,????rounbounds?count?-1
            //?-1
            PageRowBounds pageRowBounds = new PageRowBounds(0, -1);
            List<Country> list = countryMapper.selectAll(pageRowBounds);
            assertEquals(183, list.size());

            //pageSize<0?
            list = countryMapper.selectAll(new PageRowBounds(0, -100));
            assertEquals(183, list.size());
        } finally {
            sqlSession.close();
        }
    }

    class IdBean {
        private Integer id;

        public Integer getId() {
            return id;
        }

        public void setId(Integer id) {
            this.id = id;
        }
    }
}