第三十五章：SpringBoot与单元测试的小秘密

.../省略其他配置
<dependencies>
        <!--web依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!--data jpa依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <!--druid数据源依赖-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.0.31</version>
        </dependency>
        <!--lombok依赖-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <!--MySQL依赖-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <!--springboot程序测试依赖，创建项目默认添加-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

    </dependencies>
.../省略其他配置

spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://127.0.0.1:3306/test?characterEncoding=utf8
    username: root
    password: 123456
    #最大活跃数
    maxActive: 20
    #初始化数量
    initialSize: 1
    #最大连接等待超时时间
    maxWait: 60000
    #打开PSCache，并且指定每个连接PSCache的大小
    poolPreparedStatements: true
    maxPoolPreparedStatementPerConnectionSize: 20
    #通过connectionProperties属性来打开mergeSql功能；慢SQL记录
    #connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
    minIdle: 1
    timeBetweenEvictionRunsMillis: 60000
    minEvictableIdleTimeMillis: 300000
    validationQuery: select 1 from dual
    testWhileIdle: true
    testOnBorrow: false
    testOnReturn: false
    #配置监控统计拦截的filters，去掉后监控界面sql将无法统计,'wall'用于防火墙
    filters: stat, wall, log4j
  jpa:
    properties:
      hibernate:
        show_sql: true
        format_sql: true

package com.yuqiyu.chapter35.bean;

import lombok.Data;

import javax.persistence.*;
import java.io.Serializable;

/**
 * 商品基本信息实体
 * ========================
 * Created with IntelliJ IDEA.
 * User：恒宇少年
 * Date：2017/9/13
 * Time：22:20
 * 码云：http://git.oschina.net/jnyqy
 * ========================
 */
@Data
@Entity
@Table(name = "good_infos")
public class GoodInfoEntity implements Serializable
{
    //商品编号
    @Id
    @Column(name = "tg_id")
    @GeneratedValue
    private Integer tgId;

    //商品类型编号
    @Column(name = "tg_type_id")
    private Integer typeId;

    //商品标题
    @Column(name = "tg_title")
    private String title;

    //商品价格
    @Column(name = "tg_price")
    private double price;

    //商品排序
    @Column(name = "tg_order")
    private int order;
}

package com.yuqiyu.chapter35.jpa;

import com.yuqiyu.chapter35.bean.GoodInfoEntity;
import org.springframework.data.jpa.repository.JpaRepository;

/**
 * 商品jpa
 * ========================
 * Created with IntelliJ IDEA.
 * User：恒宇少年
 * Date：2017/9/13
 * Time：22:23
 * 码云：http://git.oschina.net/jnyqy
 * ========================
 */
public interface GoodInfoJPA
    extends JpaRepository<GoodInfoEntity,Integer>
{
}

package com.yuqiyu.chapter35.controller;

import com.yuqiyu.chapter35.bean.GoodInfoEntity;
import com.yuqiyu.chapter35.jpa.GoodInfoJPA;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * ===============================
 * Created with Eclipse.
 * User：于起宇
 * Date：2017/9/13
 * Time：18:37
 * 简书：http://www.jianshu.com/u/092df3f77bca
 * ================================
 */
@RestController
public class TestController
{
    //商品基本信息数据接口
    @Autowired
    private GoodInfoJPA goodInfoJPA;

    /**
     * 查询首页内容
     * @return
     */
    @RequestMapping(value = "/index")
    public String index(String name)
    {
        return "this is index page" + name;
    }

    /**
     * 查询全部商品
     * @return
     */
    @RequestMapping(value = "/all")
    public List<GoodInfoEntity> selectAll()
    {
        return goodInfoJPA.findAll();
    }

    /**
     * 查询商品详情
     * @param goodId
     * @return
     */
    @RequestMapping(value = "/detail",method = RequestMethod.GET)
    public GoodInfoEntity selectOne(Integer goodId)
    {
        return goodInfoJPA.findOne(goodId);
    }
}

....//省略依赖导包
/**
 * 单元测试
 */
@RunWith(SpringRunner.class)
@SpringBootTest
public class Chapter35ApplicationTests {
    /**
     * 模拟mvc测试对象
     */
    private MockMvc mockMvc;

    /**
     * web项目上下文
     */
    @Autowired
    private WebApplicationContext webApplicationContext;

    /**
     * 商品业务数据接口
     */
    @Autowired
    private GoodInfoJPA goodInfoJPA;

    /**
     * 所有测试方法执行之前执行该方法
     */
    @Before
    public void before() {
        //获取mockmvc对象实例
        mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build();
    }
}

...//省略导包
@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
@BootstrapWith(SpringBootTestContextBootstrapper.class)
public @interface SpringBootTest {
    @AliasFor("properties")
    String[] value() default {};

    @AliasFor("value")
    String[] properties() default {};

    Class<?>[] classes() default {};

    SpringBootTest.WebEnvironment webEnvironment() default SpringBootTest.WebEnvironment.MOCK;

    public static enum WebEnvironment {
        MOCK(false),
        RANDOM_PORT(true),
        DEFINED_PORT(true),
        NONE(false);

        private final boolean embedded;

        private WebEnvironment(boolean embedded) {
            this.embedded = embedded;
        }

        public boolean isEmbedded() {
            return this.embedded;
        }
    }
}

    /**
     * 测试访问/index地址
     * @throws Exception
     */
    @Test
    public void testIndex() throws Exception {
        MvcResult mvcResult = mockMvc
                .perform(// 1
                        MockMvcRequestBuilders.get("/index") // 2
                        .param("name","admin") // 3
                )
                .andReturn();// 4

        int status = mvcResult.getResponse().getStatus(); // 5
        String responseString = mvcResult.getResponse().getContentAsString(); // 6

        Assert.assertEquals("请求错误", 200, status); // 7
        Assert.assertEquals("返回结果不一致", "this is index pageadmin", responseString); // 8
    }

/**
     * 测试查询详情
     * @throws Exception
     */
    @Test
    public void testDetail() throws Exception
    {
        MvcResult mvcResult = mockMvc
                .perform(
                        MockMvcRequestBuilders.get("/detail")
                        .param("goodId","2")
                )
                .andReturn(); // 5

        //输出经历的拦截器
        HandlerInterceptor[] interceptors = mvcResult.getInterceptors();
        System.out.println(interceptors[0].getClass().getName());

        int status = mvcResult.getResponse().getStatus(); // 6
        String responseString = mvcResult.getResponse().getContentAsString(); // 7
        System.out.println("返回内容："+responseString);
        Assert.assertEquals("return status not equals 200", 200, status); // 8
    }

/**
     * 测试添加商品基本信息
     */
    @Test
    public void testInsert()
    {
        /**
         * 商品基本信息实体
         */
        GoodInfoEntity goodInfoEntity = new GoodInfoEntity();
        goodInfoEntity.setTitle("西红柿");
        goodInfoEntity.setOrder(2);
        goodInfoEntity.setPrice(5.82);
        goodInfoEntity.setTypeId(1);
        goodInfoJPA.save(goodInfoEntity);
        /**
         * 测试是否添加成功
         * 验证主键是否存在
         */
        Assert.assertNotNull(goodInfoEntity.getTgId());
    }

    /**
     * 测试删除商品基本信息
     */
    @Test
    public void testDelete()
    {
        //根据主键删除
        goodInfoJPA.delete(3);
        
        //验证数据库是否已经删除
        Assert.assertNull(goodInfoJPA.findOne(3));
    }