Question

我是测试方面的新手。我在我的应用程序中使用了Spring Mvc。我按照一些教程编写控制器和服务测试用例。我在服务测试中遇到错误。请帮忙！

服务：

@Autowired
private PatientDao patientDao;

@Autowired
private PrefixDao prefixDao;

public Patient createPatient(Patient patient) throws Exception {
    patient.setAgeorDob();
    return createPatientInSync(patient);
}

private synchronized Patient createPatientInSync(Patient patient)
            throws Exception {
        try {
            Prefix prefix = prefixDao.getPrefixForType(PrefixType.PATIENT);
            patient.setPatientNo(prefix.getPrefixedNumber());
            patientDao.createPatient(patient); //SAVE PATIENT
            prefixDao.incrementPrefix(prefix);
        } catch (ConstraintViolationException ex) {
            throw new InternalErrorException("Please enter valid data", ex);
        } catch (NullPointerException e) {
            e.printStackTrace();
            throw new InternalErrorException(
                    "Please create Prefix for Patient", e);
        }
        return patient;
    }

服务测试案例：

@ContextConfiguration(locations = {
        "classpath:/applicationContext-resources.xml",
        "classpath:/applicationContext-service.xml",
        "classpath:/applicationContext-dao.xml",
        "classpath:/applicationContext.xml" })
@RunWith(SpringJUnit4ClassRunner.class)
public class PatientServiceTest {

    @Autowired
    @Mock
    private PatientDao patientDao;

    @InjectMocks
    private PatientServiceImpl patientService = new PatientServiceImpl();

    private PrefixDao prefixDao;


    @Before
    public void doSetup() {
        patientDao = mock(PatientDao.class);
        prefixDao = mock(PrefixDao.class);
        // Mockito.mock(PatientDao.class);
    }

    @Before
    public void initMocks() {
        MockitoAnnotations.initMocks(this);
    }

    @Test
    public void testSaveUser() throws Exception {

        Patient mockPatient = new Patient();
        mockPatient.setFirstName("Aravinth");
        mockPatient.setSex(Gender.Male);
        mockPatient.setAgeOrDob("24");

        Prefix prefix = new Prefix();
        prefix.setPrefixType(PrefixType.PATIENT);
        prefix.setPrefix("Pat-");
        prefix.setSequenceNo(23);

        when(prefixDao.getPrefixForType(PrefixType.PATIENT)).thenReturn(prefix);
        System.out.println(prefix.getSequenceNo());

        mockPatient = patientService.createPatient(mockPatient);

        assertEquals("Aravinth", mockPatient.getFirstName()); 

        verify(patientDao, times(1)).createPatient(mockPatient);
    }
}

验证时间正常。我在assertEquals中得到了Nullpointer。

Answer 1

首先需要@Mock PrefixDao。如果您使用的是Junit 5，则无需运行initMocks（this）。否则，您需要这样做：MockitoAnnotations.initMocks（this）; 这样，mockito会将两个模拟Dao对象连接到您的服务。

我也看不到您为PatientDao嘲笑动作。什么时候（PatientDao.create（））。thenReturn（...）;

Mockito - Spring Mvc服务测试（空指针）

1 个答案: