java - 使用模拟休息 Controller 方法进行 Junit 测试

Question

我实际上有一个创建简单的网络服务，我想添加新的 junit 测试。我有一种将人员添加到团队中的方法。这是我的方法(在休息 Controller 中):

@PostMapping("/addPeopleToTeams/{teamId}/{personId}")
@ResponseBody
public ResponseEntity<?> addPeopleToTeam(@PathVariable Long teamId, @PathVariable Long personId) {
    TeamsAndPersonsId teamsAndPersonsId = new TeamsAndPersonsId(personId, teamId);
    teamService.findTeamById(teamsAndPersonsId.getTeamId());
    personService.findById(teamsAndPersonsId.getPersonId());
    teamService.addPersonsToTeams(personId, teamId);
    return ResponseEntity.ok(teamsAndPersonsId);

}

对于这个方法，我想编写一个 Junit 测试，但出了问题:/这是我的测试类，方法如下:

@RunWith(SpringRunner.class)
@SpringBootTest
@AutoConfigureMockMvc
public class TeamControllerTest {

    private ObjectMapper mappingObject = new ObjectMapper();
    private MockMvc mockMvc;
    @Mock
    private TeamService teamService;
    private PersonService personService;

    @Before
    public void initTest() {
        mockMvc = MockMvcBuilders
                .standaloneSetup(new TeamController(teamService, personService))
                .setControllerAdvice(GlobalExceptionHandler.class)
                .build();
    }
        @Test
    public void shouldAddPersonToTeam() throws Exception{
        TeamDto teamDto = prepareTeamDto();
        PersonDto personDto = new PersonDto(1L, "Bob", "Noob", "mail@first.pl", "Warszawa", "APPS", "Developer");
        doNothing().when(teamService).createTeam(teamDto);
        doNothing().when(personService).addPerson(personDto);

        mockMvc.perform(post("/addPeopleToTeams/{teamId}/{personId}",1,1))

                .andExpect(status().isOk());

    }

    private TeamDto prepareTeamDto() {
        return new TeamDto(1L, "Jan", "local", "wawa", 6);
    }

实际上对于这个方法我有这个错误:

org.mockito.exceptions.base.MockitoException: 
Only void methods can doNothing()!
Example of correct use of doNothing():
    doNothing().
    doThrow(new RuntimeException())
    .when(mock).someVoidMethod();
Above means:
someVoidMethod() does nothing the 1st time but throws an exception the 2nd time is called

Answer 1

doNothing() 仅用于 void 方法，如错误消息中所述，在您的情况下，您必须使用类似以下内容的内容:

when(teamService.createTeam(teamDto)).thenReturn(Reponse.ok().build());

注意:您必须重写 TeamDto 类中的 @equals 方法