在使用springboot框架开发接口时，都免不了写接口单元测试。

1.controller单元测试（业务类参与）
2.controller单元测试（业务类mock）

导入依赖包：

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-test</artifactId>
  <scope>test</scope>
</dependency>

单元测试代码：

@RunWith(SpringRunner.class)
@SpringBootTest
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
@AutoConfigureMockMvc
public class UserControllerTest_bak {

    @Autowired
    MockMvc mockMvc;

    final String ID = "test_user";

    /**
     * 如果业务类没有开发好,但是要做接口测试时
     * @MockBean
     * UserService userService
     */
//    @MockBean
//    UserService userService;


    User user;

    @Before
    public void setUp() throws Exception {
        user = new User();
        user.setId(ID);
        user.setName(ID);
    }


    @Test
    public void test_01_saveUser() throws Exception {
        String requestJson = JSON.toJSON(user).toString();
        User user1= new User();
        user1.setId("ok");
        /**
         * 如果userService没有开发完成则，使用mock代替
         * @MockBean: 将mock的bean替换掉 SpringBoot 管理的原生bean，从而达到mock的效果
         *
         * 如果userService参与实际逻辑,则注释掉Mockito.when().thenReturn()方法
         * */
//        Mockito.when(userService.insert(Mockito.any(User.class))).thenReturn(user1);
        mockMvc.perform(MockMvcRequestBuilders.post("/users/").contentType(MediaType.APPLICATION_JSON).content(requestJson))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andExpect(MockMvcResultMatchers.jsonPath("$.status").value(201))
                .andDo(MockMvcResultHandlers.print());

        mockMvc.perform(MockMvcRequestBuilders.post("/users/").contentType(MediaType.APPLICATION_JSON).content(requestJson))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andExpect(MockMvcResultMatchers.jsonPath("$.status").value(400))
                .andDo(MockMvcResultHandlers.print());
    }


    @Test
    public void test_02_updateUserByPut() throws Exception {
        user.setName(ID+"_update");
        String requestJson = JSON.toJSON(user).toString();
        mockMvc.perform(MockMvcRequestBuilders.put("/users/").contentType(MediaType.APPLICATION_JSON).content(requestJson))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andExpect(MockMvcResultMatchers.jsonPath("$.status").value(200))
                .andDo(MockMvcResultHandlers.print());

        user.setId(ID+"_update");
        requestJson = JSON.toJSON(user).toString();
        mockMvc.perform(MockMvcRequestBuilders.put("/users/").contentType(MediaType.APPLICATION_JSON).content(requestJson))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andExpect(MockMvcResultMatchers.jsonPath("$.status").value(400))
                .andDo(MockMvcResultHandlers.print());
    }

    @Test
    public void test_03_getUserById() throws Exception {
        mockMvc.perform(MockMvcRequestBuilders.get("/users/"+ID))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andExpect(MockMvcResultMatchers.jsonPath("$.status").value(200))
                .andDo(MockMvcResultHandlers.print());;

    }

    @Test
    public void test_04_deleteUserById() throws Exception {
        mockMvc.perform(MockMvcRequestBuilders.delete("/users/"+ID))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andExpect(MockMvcResultMatchers.jsonPath("$.status").value(200))
                .andDo(MockMvcResultHandlers.print());

        mockMvc.perform(MockMvcRequestBuilders.delete("/users/"+ID))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andExpect(MockMvcResultMatchers.jsonPath("$.status").value(400))
                .andDo(MockMvcResultHandlers.print());
    }
}