Mvc unit test simulation test object MockMvc

import com.hengyu.chapter39.service.impl.MongoDBServiceImpl;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MvcResult;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultHandlers;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.context.WebApplicationContext;

@RunWith(SpringRunner.class)
@SpringBootTest
public class ChapterApplicationTests {
    @Autowired
    private MongoDBServiceImpl mongoDBService;
    /**
     * 模拟mvc测试对象
     */
    private MockMvc mockMvc;

    /**
     * web项目上下文
     */
    @Autowired
    privateWebApplicationContext the WebApplicationContext; 

    / ** 
     * This method performs the test method is performed until all 
     * / 
    @Before 
    public  void before () {
         // Get mockmvc object instance 
        mockMvc = MockMvcBuilders.webAppContextSetup (WebApplicationContext) .build (); 
    } 

    / ** 
     * Test Add product 
     * @throws Exception
      * / 
    @Test 
    public  void addGood () throws Exception 
    { 
        MvcResult Result = mockMvc.perform (MockMvcRequestBuilders.post ( "/ Good / Save" ) 
                .PARAM ( "name", "tomato")
                .param("unit","斤")
                .param("price","12.88")
        )
                .andDo(MockMvcResultHandlers.print())
                .andExpect(MockMvcResultMatchers.status().is(200))
                .andReturn();
        result.getResponse().setCharacterEncoding("UTF-8");
        System.out.println(result.getResponse().getContentAsString());
    }

    @Test
    public void queryMongo() throws Exception {
        MvcResult mvcResult = mockMvc.perform(MockMvcRequestBuilders.get("/template/query"))
                .andDo(MockMvcResultHandlers.print())
                .andExpect(MockMvcResultMatchers.status().is(200))
                .andReturn();
        System.out.println(mvcResult.getResponse().getContentAsString());
    }

    @Test
    public void list() throws Exception {
        MvcResult mvcResult = mockMvc.perform(MockMvcRequestBuilders.get("/template/list"))
                .andDo(MockMvcResultHandlers.print())
                .andExpect(MockMvcResultMatchers.status().is(200))
                .andReturn();
        mvcResult.getResponse().setCharacterEncoding("utf8");
        System.out.println(mvcResult.getResponse().getContentAsString());
    }
}