Spring MVC的junit測試用例

Question

我們正在使用Spring MVC框架開發應用程序。 我已經給出了下面的所有類，請建議如何為以下場景編寫一個junit測試用例。

我想為validateAccountInformation（requestDTO）方法編寫一個junit測試用例，該方法在LPAValidator.java類的validateAccount（..）方法中調用。 下面是我的junit測試用例，后面是java類。 實際調用來自LPAController.java，如以下代碼所示。

LPAControllerTest.java

       @Test(groups = "manual")
        public void submitRequestForLPAAccountTest()
        {
       // businessCalendar.nextBusinessDay(
      //                LocalDateHelper.today(), LPAConstants.TWENTY_BUSSINESS_DAYS)
     //i want to write the test case for the above commented logic, 
     //if business days is not equal to twenty days, test should fail. 
        }

LPAController.java

    @RequestMapping(value = "/lpa/{accNumber}/spread, method = RequestMethod.GET)
     public @ResponseBody LPAResponseDTO accountSearch(@RequestBody final LPARequestDTO clientrequestBody,
                                        @PathVariable final String accNumber, final HttpServletResponse response)
    {
        //some logic goes here

final LPAAccountResponse domainResponse = service.submitRequestForLPAAccount(requestBody);

    }

LPAServiceImpl.java

@PermitAll
@NonTransactional
public LPAResponse submitRequestForLPAAccount(final LPARequest requestDTO)
{
    return lpaRepository.submitRequestForLPAAccount(requestDTO));
}

LPARepository.java

    @PermitAll
    @NonTransactional
    public LPAResponse submitRequestForLPAAccount(final LPARequest requestDTO)
    {
    //some logic
    lpaValidator.validateAccount(requestDTO);

    //some logic

    }

LPAValidator.java-用於驗證的Java類

@component
class LPAValidator{
    @Inject
    private BusinessCalendar businessCalendar;

            void validateAccount(final LPARequest requestDTO) throws Exception {
            try {
                validateAccountInformation(requestDTO);
                } catch(Exception e){
                }
        }

            private void validateAccountInformation(final LPARequest requestDTO) throws Exception{
                final accDate lpaAccDate = requestDTO.getLPADate();
                final LocalDate twentyBussinessDays = businessCalendar.nextBusinessDay(
                    LocalDateHelper.today(), LPAConstants.TWENTY_BUSSINESS_DAYS); //i want to write 
    //test case for this line of code, if business days given is more than twenty test should fail.
                //some logic here
        }

請建議需要在LPAControllerTest.java中添加哪些內容，以測試如上所述的nextBusinessDay（..）。

Answer 1

您試圖編寫一個集成測試，在該測試中調用您的控制器，然后調用所有子類，直到觸發驗證器。 那不是傳統的“單元測試”。

傳統的單元測試只會直接驗證驗證器，僅此而已。

不過，在編寫集成測試時，需要提供彈簧文檔
簡而言之，它將要求您使用所有必要的腳手架創建一個applicationcontext，然后使用mockMvc調用對創建的應用程序執行GET。

如果要測試驗證器，請使用簡單的模擬框架：請參閱[ http://mockito.org]為您提供以下內容：

@Mock BusinessCalendar businessCalendarMock;
@Mock LPARequest mockRequest;
@Mock accDate mockDate;
@Mock LocalDate mockLocalDate;
@InjectMocks LPAValidator lpaValidator = new LPAValidator();
@Test public void testValidateAccount() {
    when(mockRequest.getLPAdate()).thenReturn(mockDate);
    when(businessCalendar.nextBusinessDay(LocalDateHelper.today(),LPAConstants.TWENTY_BUSSINESS_DAYS).thenReturn(mockLocalDate);
    // continue your test from here
   lpaValidator.validateAccount( mockRequest);
   verify(businessCalendar).nextBusinessDay(LocalDateHelper.today(),LPAConstants.TWENTY_BUSSINESS_DAYS);
    // although if the use of mockLocalDate is integral to your code, it'll probably show before and no verify is necessary;