单元测试MockMvc用法

package com.heima.article.controller.v1;

import com.heima.model.article.dtos.ArticleInfoDto;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockHttpServletRequestBuilder;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.result.MockMvcResultHandlers;
import org.springframework.test.web.servlet.result.MockMvcResultMatchers;

@SuppressWarnings(“all”)
@SpringBootTest
@RunWith(SpringRunner.class)
//使用MocMvc进行测试 SpringBoot提供的
@AutoConfigureMockMvc
public class ArticleInfoControllerTest {
@Autowired
MockMvc mvc;
@Autowired
ObjectMapper mapper;

@Test
public void testLoadArticleInfo() throws Exception {

    ArticleInfoDto dto = new ArticleInfoDto();
    dto.setArticleId(10120);//1为数据库中的测试数据
    MockHttpServletRequestBuilder builder = MockMvcRequestBuilders.post("/api/v1/article/load_article_info")
            .contentType(MediaType.APPLICATION_JSON_VALUE)
            .content(mapper.writeValueAsBytes(dto));//String.valueOf(dto)与此用mapper的方法有啥不同
    mvc.perform(builder).andExpect(MockMvcResultMatchers.status().isOk()).andDo(MockMvcResultHandlers.print());
}

}
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