Hibernate 如何在tapestry相关项目中测试DAO层

我有一个tapestry5+hibernate应用程序，我正试图为它编写单元测试。我正在寻找一些指导或最佳实践，以便在此类项目中测试DAO层。 我使用testng尝试了下面的测试用例，但没有成功

@Test
public void createOrderTest() {
    IOCUtilities.buildDefaultRegistry();
    OrderManager orderManager = new OrderManager();
    Order o1 = new Order();
    Date date = new Date(System.currentTimeMillis());
    o1.setOrderDate(date);
    o1.setOrderStatus(OrderStatus.BILLED.toString());
    orderManager.createOrder(o1);
}

尝试运行测试用例时获取错误消息

java.lang.IllegalArgumentException: Contribution org.apache.tapestry5.yuicompressor.services.YuiCompressorModule.contributeMinimizers(MappedConfiguration) (at YuiCompressorModule.java:42) is for service 'interface org.apache.tapestry5.services.assets.ResourceMinimizer' qualified with marker annotations [interface org.apache.tapestry5.ioc.annotations.Primary], which does not exist.
at org.apache.tapestry5.ioc.internal.RegistryImpl.validateContributeDefs(RegistryImpl.java:246)
at org.apache.tapestry5.ioc.internal.RegistryImpl.<init>(RegistryImpl.java:205)
at org.apache.tapestry5.ioc.RegistryBuilder.build(RegistryBuilder.java:177)
at org.apache.tapestry5.ioc.IOCUtilities.buildDefaultRegistry(IOCUtilities.java:51)
at com.vc.xpressor.testng.OrderManagerTest.createOrderTest(OrderManagerTest.java:21)

java.lang.IllegalArgumentException:Contribution org.apache.tapestry5.yuicompressor.services.YuiCompressorModule.contributerMinimizers（MappedConfiguration）（位于YuiCompressorModule.java:42）用于带有标记注释的服务“interface org.apache.tapestry5.services.assets.ResourceMinimizer”[interface org.apache.tapestry5.ioc.annotations.Primary]，它不存在。
位于org.apache.tapestry5.ioc.internal.RegistryImpl.ValidateCommitteedEFS（RegistryImpl.java:246）
位于org.apache.tapestry5.ioc.internal.registrympl.（registrympl.java:205）
位于org.apache.tapestry5.ioc.RegistryBuilder.build（RegistryBuilder.java:177）
位于org.apache.tapestry5.ioc.IOCUtilities.buildDefaultRegistry（IOCUtilities.java:51）
在com.vc.xpressor.testng.OrderManagerTest.createOrderTest（OrderManagerTest.java:21）上

如果在DAO中使用构造函数注入，则在DAO测试中根本不需要tapestry。DAO所需的唯一依赖项是hibernate会话，可能还有几个@符号，这一点我说得对吗

如果是这样的话，您所需要的就是建立到内存中数据库（如h2）的连接，并将其包装到hibernate会话中，然后将hibernate会话传递给DAO构造函数

我为我的DAO使用一个基本测试类，它在@Before方法中设置连接和会话

这是一把样品刀

public class ItemDAOImpl implements ItemDAO {
    private final Session session;

    public ItemDAOImpl(Session session) {
        this.session = session;
    }

    public List<Item> findAll() {
        return session.createCriteria(Item.class).list();
    }

    ....
}

但是在我的测试用例中，我不需要Tapestry

public class ItemDAOImplTest extends AbstractHibernateTest {
    private ItemDAO itemDAO;

    @Override
    protected void before() {
        itemDAO = new ItemDAOImpl(session);
    }

    @Override
    protected void after() {}

    @Test
    public void testFindAll() {
        session.save(new Item(...));
        session.save(new Item(...));
        session.save(new Item(...));
        assertEquals(3, itemDAO.findAll().size());
    }
}

public abstract class AbstractHibernateTest {
    protected SessionFactory sessionFactory;
    protected Session session;

    @Before
    public void abstractBefore() throws Exception {
        Configuration config = new Configuration();

        // see PackageNameHibernateConfigurer source code to dynamically add all
        // classes in the entities package
        config.addAnnotatedClass(Item.class);
        config.addAnnotatedClass(...);

        config.setProperty("hibernate.dialect", "org.hibernate.dialect.H2Dialect");
        config.setProperty("hibernate.connection.driver_class", "org.h2.Driver");
        config.setProperty("hibernate.connection.url", "jdbc:h2:mem:test");
        config.setProperty("hibernate.hbm2ddl.auto", "create");
        config.setProperty("hibernate.show_sql", "true");
        config.setProperty("hibernate.format_sql", "true");

        sessionFactory = config.buildSessionFactory();
        session = sessionFactory.openSession();
        session.beginTransaction();
        before();
    }

    protected abstract void before() throws Exception;

    @After
    public void abstractAfter() throws Exception {
        Exception exception = null;
        try {
            after();
        } catch (Exception e) {
            exception = e;
        }

        session.getTransaction().rollback();
        session.close();
        sessionFactory.close();

        if (exception != null) {
            throw exception;
        }
    }

    protected abstract void after() throws Exception;
}

---

如果要通过IoC运行DAO，另一个选项是将AppModule分为两个：一个用于定义Hibernate实体和DAO的模块，另一个在AppModule中。您可以使用DAO模块和HibernateCoreModule初始化测试（如果您注意到，Tapestry的Hibernate支持同样分为两部分：一部分是在Tapestry ioc上工作的非可视部分，另一部分是提供到Tapestry core的附加挂钩的可视部分）。

感谢@uklance的帮助。另外，buildDefaultRegistry（）没有从Tapestry core加载TapestryModule。

public class ItemDAOImplTest extends AbstractHibernateTest {
    private ItemDAO itemDAO;

    @Override
    protected void before() {
        itemDAO = new ItemDAOImpl(session);
    }

    @Override
    protected void after() {}

    @Test
    public void testFindAll() {
        session.save(new Item(...));
        session.save(new Item(...));
        session.save(new Item(...));
        assertEquals(3, itemDAO.findAll().size());
    }
}

public abstract class AbstractHibernateTest {
    protected SessionFactory sessionFactory;
    protected Session session;

    @Before
    public void abstractBefore() throws Exception {
        Configuration config = new Configuration();

        // see PackageNameHibernateConfigurer source code to dynamically add all
        // classes in the entities package
        config.addAnnotatedClass(Item.class);
        config.addAnnotatedClass(...);

        config.setProperty("hibernate.dialect", "org.hibernate.dialect.H2Dialect");
        config.setProperty("hibernate.connection.driver_class", "org.h2.Driver");
        config.setProperty("hibernate.connection.url", "jdbc:h2:mem:test");
        config.setProperty("hibernate.hbm2ddl.auto", "create");
        config.setProperty("hibernate.show_sql", "true");
        config.setProperty("hibernate.format_sql", "true");

        sessionFactory = config.buildSessionFactory();
        session = sessionFactory.openSession();
        session.beginTransaction();
        before();
    }

    protected abstract void before() throws Exception;

    @After
    public void abstractAfter() throws Exception {
        Exception exception = null;
        try {
            after();
        } catch (Exception e) {
            exception = e;
        }

        session.getTransaction().rollback();
        session.close();
        sessionFactory.close();

        if (exception != null) {
            throw exception;
        }
    }

    protected abstract void after() throws Exception;
}