Mocked @Service se connecte à la base de données pendant les tests

Question

En essayant de tester mon contrôleur Spring REST, mon @Service essaie toujours de se connecter à la base de données.

Controller:

@RestController 
@RequestMapping(value = "/api/v1/users") 
public class UserController { 

private UserService userService; 

@Autowired 
public UserController(UserService userService) { 
    this.userService = userService; 
} 

@RequestMapping(method = RequestMethod.GET) 
public ResponseEntity<List<User>> getAllUsers() { 
    List<User> users = userService.findAll(); 
    if (users.isEmpty()) { 
     return new ResponseEntity<List<User>>(HttpStatus.NO_CONTENT); 
    } 

    return new ResponseEntity<List<User>>(users, HttpStatus.OK); 
} 

Test:

@RunWith(SpringRunner.class) 
@SpringBootTest(classes = Application.class) 
@WebAppConfiguration 
public class UserControllerTest { 

private MockMvc mockMvc; 

@Autowired 
private WebApplicationContext wac; 

@Before 
public void setup() { 
    this.mockMvc = webAppContextSetup(wac).build(); 
} 

@Test 
public void getAll_IfFound_ShouldReturnFoundUsers() throws Exception { 
    User first = new User(); 
    first.setUserId(1); 
    first.setUsername("test"); 
    first.setPassword("test"); 
    first.setEmail("test@email.com"); 
    first.setBirthday(LocalDate.parse("1996-04-30")); 

    User second = new User(); 
    second.setUserId(2); 
    second.setUsername("test2"); 
    second.setPassword("test2"); 
    second.setEmail("test2@email.com"); 
    second.setBirthday(LocalDate.parse("1996-04-30")); 

    UserService userServiceMock = Mockito.mock(UserService.class); 

    Mockito.when(userServiceMock.findAll()).thenReturn(Arrays.asList(first, second)); 

    mockMvc.perform(get("/api/v1/users")). 
      andExpect(status().isOk()). 
      andExpect(content().contentType(MediaType.APPLICATION_JSON_UTF8)). 
      andExpect(jsonPath("$", hasSize(2))). 
      andExpect(jsonPath("$[0].userId", is(1))). 
      andExpect(jsonPath("$[0].username", is("test"))). 
      andExpect(jsonPath("$[0].password", is("test"))). 
      andExpect(jsonPath("$[0].email", is("test@email.com"))). 
      andExpect(jsonPath("$[0].email", is(LocalDate.parse("1996-04-30")))). 
      andExpect(jsonPath("$[1].userId", is(2))). 
      andExpect(jsonPath("$[1].username", is("test2"))). 
      andExpect(jsonPath("$[1].password", is("test2"))). 
      andExpect(jsonPath("$[1].email", is("test2@email.com"))). 
      andExpect(jsonPath("$[1].email", is(LocalDate.parse("1996-04-30")))); 

    verify(userServiceMock, times(1)).findAll(); 
    verifyNoMoreInteractions(userServiceMock); 
} 
} 

Mon test toujours l'échec parce que la place se first et second comme retour, il lit les données de DB. Si j'éteins DB, il lance NestedServletException, nested: DataAccessResourceFailureException.

Comment puis-je le tester correctement? Qu'est-ce que je fais mal?

Answer 1

Le fait de se moquer du userService de cette façon UserService userServiceMock = Mockito.mock(UserService.class); ne l'injectera pas dans le contrôleur. Retirer cette ligne et injecter UserService comme suit

@MockBean UserService userServiceMock; 

Comme @ M.Deinum suggéré vous pouvez supprimer la création manuelle de MockMvc et autowired il

@Autowired 
private MockMvc mockMvc; 

A la fin de votre code devrait ressembler à

@RunWith(SpringRunner.class) 
@SpringBootTest(classes = Application.class) 
@WebAppConfiguration 
public class UserControllerTest { 

    @MockBean 
    UserService userServiceMock; 

    @Autowired 
    private MockMvc mockMvc; 

    @Test 
    public void getAll_IfFound_ShouldReturnFoundUsers() throws Exception { 
     User first = new User(); 
     first.setUserId(1); 
     first.setUsername("test"); 
     first.setPassword("test"); 
     first.setEmail("test@email.com"); 
     first.setBirthday(LocalDate.parse("1996-04-30")); 

     User second = new User(); 
     second.setUserId(2); 
     second.setUsername("test2"); 
     second.setPassword("test2"); 
     second.setEmail("test2@email.com"); 
     second.setBirthday(LocalDate.parse("1996-04-30")); 

     Mockito.when(userServiceMock.findAll()) 
      .thenReturn(Arrays.asList(first, second)); 

     mockMvc.perform(get("/api/v1/users")). 
     andExpect(status().isOk()). 
     andExpect(content().contentType(MediaType.APPLICATION_JSON_UTF8)). 
     andExpect(jsonPath("$", hasSize(2))). 
     andExpect(jsonPath("$[0].userId", is(1))). 
     andExpect(jsonPath("$[0].username", is("test"))). 
     andExpect(jsonPath("$[0].password", is("test"))). 
     andExpect(jsonPath("$[0].email", is("test@email.com"))). 
     andExpect(jsonPath("$[0].email", is(LocalDate.parse("1996-04-30")))). 
     andExpect(jsonPath("$[1].userId", is(2))). 
     andExpect(jsonPath("$[1].username", is("test2"))). 
     andExpect(jsonPath("$[1].password", is("test2"))). 
     andExpect(jsonPath("$[1].email", is("test2@email.com"))). 
     andExpect(jsonPath("$[1].email", is(LocalDate.parse("1996-04-30")))); 

     verify(userServiceMock, times(1)).findAll(); 
     verifyNoMoreInteractions(userServiceMock); 
    } 
}