Junit5 Mockito@injecctmocks不使用MockMvc

Question

@ExtendWith(SpringExtension.class)
@ExtendWith(MockitoExtension.class)
class AuthControllerTest {

    private MockMvc mockMvc;

    @InjectMocks
    private AuthController authController;

    @BeforeEach
    void setUp() {
        mockMvc = MockMvcBuilders.standaloneSetup(authController)
                .build();
    }

    @Test
    void getToken() throws Exception{
        mockMvc.perform(post("/auth/token")
                .contentType(MediaType.APPLICATION_JSON)
                .content("{\"username\" : \"Santa Clause\", \"password\" : \"1223\" }")
                .accept(MediaType.APPLICATION_JSON))
                .andExpect(status().isOk())
                .andExpect(jsonPath("$.status").value("Success"))
                .andExpect(jsonPath("$.result").exists())
                .andExpect(jsonPath("$.result.username").exists())
                .andExpect(jsonPath("$.result.token").exists())
                .andDo(print());
    }
}

@RestController
@RequestMapping("/auth")
public class AuthController extends ContextService {

    private static final Logger logger = LoggerFactory.getLogger(AuthController.class);

    @Autowired
    IAuthManagement authManagement;

    @PostMapping("/token")
    public ResponseEntity getToken(@RequestBody AuthenticationDTO data) throws UserException {
        logger.info("\nCreating a new Token for user from credentials passed. *** "+data.getUsername()+"-->"+data.getPassword()+"-->"+authManagement);
        return authManagement.getToken(data);
    }

输出：

Creating a new Token for user from credentials passed. *** Santa Clause-->1223-->null
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException

    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
    at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:72)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)

@InjectMocks没有注入任何内容，因为authManagement为null，因此出现了NullPointerException。有谁能帮我解决这个问题吗。

Answer 1

您需要模拟iauthmanagement；authmanagement；

在您的测试类中添加如下内容。

@Mock
IAuthManagement authManagement;

除此之外，你还得嘲笑你的服务方法。https://www.petrikainulainen.net/programming/spring-framework/unit-testing-of-spring-mvc-controllers-normal-controllers/