我如何使用Mockito模拟实例化类的方法

Question

我需要为此客户编写一个测试案例。我如何模拟enlollextstub.enrollext((方法

@Service
public class CustomerEnrollmentSoapServiceImpl implements CustomerEnrollmentSoapService {

    @Override
    public EnrollExtStub.EnrollExtResponse enrollMember(LoyalHeaders loyalHeaders, EnrollExtStub.Data_type0 enrollMember)  {
        EnrollExtStub enrollExtStub = new EnrollExtStub();
        EnrollExtStub.EnrollExtResponse enrollExtResponse = enrollExtStub.enrollExt(enrollExt, messageHeader);
        return enrollExtResponse;
    }
}

Answer 1

没有干净的方法可以做到这一点。假设您真的想测试它，它看起来像生成的代码，我可能不会测试，我测试了很多。但是，如果您这样做，则需要接缝。如果EnrollExtStub无状态，或在其上调用enrollExt不会更改内部数据，则可以使其成为自动bean。

@Service
public class CustomerEnrollmentSoapServiceImpl implements CustomerEnrollmentSoapService {
   @Autowired
   private EnrollExtStub enrollExtStub;
    @Override
    public EnrollExtStub.EnrollExtResponse enrollMember(LoyalHeaders loyalHeaders, EnrollExtStub.Data_type0 enrollMember)  {
        EnrollExtStub.EnrollExtResponse enrollExtResponse = enrollExtStub.enrollExt(enrollExt, messageHeader);
        return enrollExtResponse;
    }
}

然后使EnrollExtStub bean

@Configuration
public class EnrollExtStubConfig {
    @Bean
    public EnrollExtStub enrollExtStub(){
        return new EnrollExtStub();
    }
}

然后在您的测试中

@RunWith(MockitoJUnitRunner.class)
public class CustomerEnrollmentSoapServiceImplTest {
    @InjectMocks
    private CustomerEnrollmentSoapServiceImpl service;
    @Mock
    private EnrollExtStub enrollExtStub;
...

另外，您可以直接将其直接调用一个类似于EnrollExtStubConfig创建EnrollExtStub的类，然后您可以模拟该类以返回模拟EnrollExtStub。

Answer 2

@RunWith(PowerMockRunner.class)
@PrepareForTest({CustomerEnrollmentSoapServiceImpl.class})
public class CustomerEnrollmentSoapServiceImplTest  {
  @Test
  public void enrollMemberTest() throws Exception {
    EnrollExtStub enrollExtStubMock = PowerMockito.mock(EnrollExtStub.class);
    PowerMockito.whenNew(EnrollExtStub.class).thenReturn(enrollExtStubMock);
    PowerMockito.when(enrollExtStubMock.enrollExt(Matchers.anyClass(enrollExt.class), Matchers.anyClass(MessageHeader.class))
       .thenReturn(enrollExtResponse);
 }
}