使用MockMvc进行controller层单元测试 事务自动回滚的完整案例

看代码吧~

package com.ieou.ms_backend.controller;
import com.google.gson.Gson;
import com.ieou.ms_backend.dto.account.CreateAccountReq;
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.http.MediaType;
import org.springframework.test.annotation.Rollback;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.MockMvcBuilder;
import org.springframework.test.web.servlet.ResultActions;
import org.springframework.test.web.servlet.ResultMatcher;
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;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.context.WebApplicationContext;
import static org.junit.Assert.*;
/**
 * created by wyz on 2019/5/6
 */
@SpringBootTest
@RunWith(SpringJUnit4ClassRunner.class)
public class AccountControllerTest {
    @Autowired
    private WebApplicationContext wac;
    private MockMvc mockMvc;
    private String url = "/ms_backend/account/";
    @Before
    public void setUp() throws Exception{
        //初始化MockMvc对象
        mockMvc = MockMvcBuilders.webAppContextSetup(wac).build();
    }
    //GET 请求
    @Test
    public void accountList() throws Exception {
        MockHttpServletRequestBuilder mockHttpServletRequestBuilder = MockMvcRequestBuilders.get(url + "accountList")
                .param("companyName", "wang")
                .header("access_token", "accessToken");
        mockHttpServletRequestBuilder.accept(MediaType.APPLICATION_JSON)
                .contentType(MediaType.APPLICATION_JSON_UTF8);
        ResultActions resultActions = mockMvc.perform(mockHttpServletRequestBuilder);
        resultActions.andReturn().getResponse().setCharacterEncoding("UTF-8");
        resultActions.andExpect(MockMvcResultMatchers.status().isOk());
        resultActions.andDo(MockMvcResultHandlers.print());
    }
    @Test
    public void removeAccount() {
    }
    //post 请求  @RequestBody
    @Test
    @Transactional
    @Rollback() // 事务自动回滚，默认是true。可以不写
    public void createAccount() throws Exception {
        CreateAccountReq req = new CreateAccountReq();
        MockHttpServletRequestBuilder mockHttpServletRequestBuilder = MockMvcRequestBuilders.post(url + "createAccount")
                .header("access_token", "accessToken");
        mockHttpServletRequestBuilder.accept(MediaType.APPLICATION_JSON)
                .contentType(MediaType.APPLICATION_JSON_UTF8)
                .content(new Gson().toJson(req)); // post请求
        ResultActions resultActions = mockMvc.perform(mockHttpServletRequestBuilder);
        resultActions.andReturn().getResponse().setCharacterEncoding("UTF-8");
        resultActions.andExpect(MockMvcResultMatchers.status().isOk());
        resultActions.andDo(MockMvcResultHandlers.print());
    }
}

Spring-test 单元测试数据不自动回滚的解决方案

在使用JUnit做单元测试时，为了使测试数据不对数据库造成污染，故选取了spring-test进行单元测试，但在进行dao层的测试时，发现save方法无法进行数据的自动回滚。

逐一进行检查分析，事务也开启了，并使用注解方式标记@RollBack(true)，在控制台中也打出了事务回滚的信息，但仍然不能自动回滚。

后来感觉是数据库的原因，我的数据库使用的是MySql，这就存在数据表的类型是否支持事务情况。

逐查阅MySql相关文档，发现，InnoDB类型的表是支持事务的，而MyISAM是不支持事务的，立刻查看数据表类型，果然为MyISAM，改为InnoDB后，重新进行测试，问题得到解决。

以上为个人经验，希望能给大家一个参考，也希望大家多多支持我们。