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java - 在弹簧休息控制器单元测试用例中获得空白响应

问题描述

我已经为下面的 put 方法编写了弹簧休息控制器的单元测试用例

 @PutMapping("/offers/{jobTitle}")
 public Offer updateOffer(@PathVariable String jobTitle,@Valid @RequestBody Offer offer) {          
           return offerService.updateNoOfPost(jobTitle, offer);
  }

下面是我的服务类

  @Override
    public Offer updateNoOfPost(String jobTitle, Offer offer) {
        if(!offerRepository.existsById(jobTitle))
            throw new ResourceNotFoundException("JobTitle "+jobTitle+" not found !!");
        offer.setNoOfPost(offer.getNoOfPost());
        return offerRepository.save(offer);
    }

我已经使用 testNg 和 mockito 为这个方法编写了单元测试用例

public class OfferControllerTest {

private MockMvc mvc;
private JacksonTester<Offer> jsonOffer;

@Mock
private OfferService service;

@InjectMocks
OfferController offerController;

private Offer offer;

@BeforeMethod
public void setup() {
    offer = new Offer("LSE", new Date(),1);
     MockitoAnnotations.initMocks(this);
      mvc = MockMvcBuilders.standaloneSetup(offerController)
                .build();

      JacksonTester.initFields(this, new ObjectMapper());
}
   @Test
   public void updateOffer() throws  Exception {
       Mockito.when(service.updateNoOfPost("LSE", offer)).thenReturn(offer);
       MockHttpServletResponse response = mvc.perform(
               put("/offers/LSE").contentType(MediaType.APPLICATION_JSON).content(
                       jsonOffer.write(new Offer("SE", new Date(), 19)).getJson()
               )).andReturn().getResponse();
       assertThat(response.getContentAsString()).isEqualTo(new ObjectMapper().writeValueAsString(offer));
   }

我得到的响应代码为 200。但得到空白 body.pls 在下面找到错误

FAILED: updateOffer
org.junit.ComparisonFailure: expected:<"[{"jobTitle":"LSE","createdAt":"2018-10-27","noOfPost":1}]"> but was:<"[]">
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

我错过了什么？这是为弹簧休息控制器编写单元测试用例的标准方法吗？

标签： javaspringunit-testingspring-mvctestng

解决方案

下面的模拟应该可以解决这个问题

Mockito.when(service.updateNoOfPost(Mockito.any(String.class), Mockito.any())).thenReturn(offer);

在此处阅读更多信息： stack-46914252

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