Spring + Hibernate + TestNG + Mocking nothing持久化，测试中读取nothing

Question

与TestNG抗争，Spring和Hibernate。我正在为Service类编写测试，但总是失败。但是不需要测试类就可以正常工作。所以App是可以工作的，但是测试不想这样。

这是我的测试类

@Transactional
public class BorrowerServiceTest {

@Mock
BorrowerDAOImpl borrowerDAO;

@InjectMocks
BorrowerService borrowerService;

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

@Test
public void persistTest() {
    Borrower borrower = new Borrower.BorrowerBuilder().firstName("Lars").lastName("Urlich").adress("LA")
            .phoneNumber("900900990").build();
    borrowerService.persist(borrower);
    List<Borrower> borrowerList = borrowerService.getBorrowerByName("Lars Urlich");
    Assert.assertEquals(true, borrower.equals(borrowerList.get(0)));
}

}

我的BorrowerService：

@Service("borrowerService")
@Transactional
public class BorrowerService {

@Autowired
private BorrowerDAO borrowerDAO;

public List<Borrower> getBorrowers() {
    return borrowerDAO.getBorrowers();
}

public List<Borrower> getBorrowerByName(String name) {
    return borrowerDAO.getBorrowerByName(name);
}

public boolean removeBorrower(Borrower borrower) {
    return borrowerDAO.removeBorrower(borrower);
}

public boolean persist(Borrower borrower) {
    return borrowerDAO.persist(borrower);
}
}

我的BorrowerDAOImpl：

@Repository("borrowerDAO")
@Transactional
public class BorrowerDAOImpl extends DAO implements BorrowerDAO {

@Override
public List<Borrower> getBorrowers() {
    List<Borrower> borrowerList = null;
    Query query = entityManager.createQuery("SELECT B FROM Borrower B");
    borrowerList = query.getResultList();
    return borrowerList;
}

@Override
public List<Borrower> getBorrowerByName(String name) {
    List<Borrower> borrowerList = null;
    String[] values = name.split(" ");
    Query query = entityManager.createQuery("SELECT B FROM Borrower B WHERE B.firstName LIKE '" + values[0]
            + "' AND B.lastName LIKE '" + values[1] + "'");
    borrowerList = query.getResultList();
    return borrowerList;
}

@Override
public boolean removeBorrower(Borrower borrower) {
    String firstName = borrower.getFirstName();
    String lastName = borrower.getLastName();
    Query query = entityManager
            .createQuery("DELETE Borrower where FIRST_NAME LIKE :FirstName AND LAST_NAME LIKE :LastName");
    query.setParameter("FirstName", firstName);
    query.setParameter("LastName", lastName);
    query.executeUpdate();
    return true;
}

@Override
public boolean persist(Borrower borrower) {
    entityManager.persist(borrower);
    return true;
}

}

和抽象DAO：

@Repository
@Transactional
public abstract class DAO {

    @PersistenceContext
    protected EntityManager entityManager;  
}

Maven返回失败：

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
    at java.util.LinkedList.checkElementIndex(LinkedList.java:555)
    at java.util.LinkedList.get(LinkedList.java:476)
    at com.me.service.test.BorrowerServiceTest.persistTest(BorrowerServiceTest.java:41)

Answer 1

我也不得不与之抗争。这里的问题是您的测试在它自己的事务中运行，所以在方法的执行过程中不会提交任何东西。下面是我所做的：

public class IntegrationTest extends SomeTestBase
{
    @Autowired
    private PlatformTransactionManager  platformTransactionManager;

    private TransactionTemplate         transactionTemplate;

    @Autowired
    private BeanToTest beanToTest;

    @Override
    @Before
    public void setup()
    {
        super.setup();
        this.transactionTemplate = new TransactionTemplate(this.platformTransactionManager);
    }

    @Test
    public void fooTest()
    {
        // given

        // when
        boolean result = this.transactionTemplate.execute(new TransactionCallback<Boolean>()
        {
            @Override
            public Boolean doInTransaction(TransactionStatus status)
            {
                return IntegrationTest.this.beanToTest.foo();
            }
        });

        // then
    }
}

这允许您在单独的事务中执行方法。请注意，您可能会将一些变量声明为final。

希望这能有所帮助。

Answer 2

检查the Spring documentation：看起来你的测试类应该扩展AbstractTestNGSpringContextTests。

Answer 3

在整个测试类甚至方法上使用@Commit注释来持久化测试中所做的更改。有关更多信息，请访问https://docs.spring.io/spring/docs/current/spring-framework-reference/testing.html#commit