4

我正在嘗試爲其中一個控制器類寫入集成測試,該控制器類中有一個注入依賴項。我嘗試通過注入的對象測試我的控制器的哪個部分調用方法,但是當我運行我的測試時由於空指針異常而失敗。在測試中,我使用@ContexConfiguration和@RunsWith註釋,但它沒有幫助。 有些代碼可能會幫助:)彈性集成測試依賴注入控制器

AuthenticationController:

@Controller 
public class AuthenticationController { 

    @Resource(name = "userManagement") 
    private UserManagement um; 


    @RequestMapping(method = RequestMethod.POST) 
    public String onSubmit(@ModelAttribute("user") UserForm user, 
      BindingResult result, Model model, HttpSession session) { 

     LoginFormValidator validator = new LoginFormValidator(); 
     validator.validate(user, result); 
     if (result.hasErrors()) { 
      return "login"; 
     } else { 
      User u = um.login(user.getEmail(), user.getPwd()); 
      if (u != null) { 
       session.setAttribute("user", u); 
       LOGGER.info("succesful login with email: " + u.getEmail()); 
       model.addAttribute("result", "succesful login"); 
      } else { 
       model.addAttribute("result", "login failed"); 
      } 
      return "result"; 
     } 
    } 

在測試context.xml中: beans:bean id="userManagement" class="my.packages.UserManagement"

AuthenticationControllerTest:

@RunWith(SpringJUnit4ClassRunner.class) 
@ContextConfiguration(locations = {"test-context.xml" }) 
public class AuthenticationControllerTest { 

    private MockHttpServletRequest request; 
    private MockHttpServletResponse response; 
    private AuthenticationController controller; 

    @Before 
    public void setUp() { 
     request = new MockHttpServletRequest(); 
     response = new MockHttpServletResponse(); 
     controller = new AuthenticationController(); 
    } 

    @Test 
    public void testLoginPost() throws Exception { 
     request.setMethod("POST"); 
     request.setRequestURI("/login"); 
     request.setParameter("email", "[email protected]"); 
     request.setParameter("pwd", "test"); 
     final ModelAndView mav = new AnnotationMethodHandlerAdapter() 
       .handle(request, response, controller); 
     final UserForm u = 
       assertAndReturnModelAttributeOfType(mav, "user", UserForm.class); 
     assertEquals("[email protected]", u.getEmail()); 
     assertEquals("test", u.getPwd()); 
     assertViewName(mav, "result"); 

     /* if UserForm is not valid */ 
     final BindingResult errors = assertAndReturnModelAttributeOfType(mav, 
       "org.springframework.validation.BindingResult.user", 
       BindingResult.class); 
     assertTrue(errors.hasErrors()); 
     assertViewName(mav, "login"); 
    } 

堆棧跟蹤告訴我,發生了錯誤測試調用注入的userMangaement對象的登錄方法。 um = null,因此注入與測試無關。 控制器在使用中工作正常。

任何評論會有很大的幫助!

由於提前,

回答

4

如果你想自動裝配依賴你不能像這樣創建您的控制器:

controller = new AuthenticationController(); 

可以自動裝配你扶養到您的測試

@Autowired 
private UserManagement um; 

並在您的控制器中創建構造函數以便能夠執行這個:

@Before 
public void setUp() { 
    controller = new AuthenticationController(um); 
} 

但是我會推薦使用MockServletContext。

MockServletContext mockServletContext = new MockServletContext(); 
mockServletContext.addInitParameter("contextConfigLocation", "path to your xml config")); 
ContextLoaderListener listener = new ContextLoaderListener(); 
listener.initWebApplicationContext(mockServletContext); 

還應該在某處引用DispatcherServlet。我從來沒有在servlet environmentm中做過這個,只是在spring portlet mvc中做過,但是它是相似的。這個想法是創建虛假的Web應用程序上下文,並調用dispacher servlet以在控制器之間進行完整的集成測試,即彈簧配置。