Can Arquillian inject my @PersistenceContext?

[m1ckey]

Hi guys, this is a possible feature request.

I would like Arquillian to inject my @PersistenceContext. Example:

@RunWith(Arquillian.class)
public class SongDaoImplIT {

    @Inject
    private SongDaoImpl songDaoImpl;

    @Deployment
    public static Archive<?> createTestArchive()
            throws IllegalArgumentException, IOException {
        return ShrinkWrap
                .create(SongDaoImplIT.class.getSimpleName() + ".jar",
                        JavaArchive.class)
                .addManifestResource(
                        new File("src/test/resources/META-INF/persistence.xml"),
                        ArchivePaths.create("persistence.xml"))
                .addClasses(Artist.class, NullEntitiesFactory.class,
                        SongDaoImpl.class);
    }

    @Test
    public void testCanPersistUserObject() {
        EntityManagerFactory emf = Persistence
                .createEntityManagerFactory("testPu");
        EntityManager em = emf.createEntityManager();
        assertNotNull(songDaoImpl.getArtist("Dio"));
    }

And the DAO:

@ApplicationScoped
public class SongDaoImpl implements SongDao {

    @PersistenceContext
    private EntityManager entityManager;

What I would like Arquillian to call and inject is this:

EntityManagerFactory emf = Persistence
                .createEntityManagerFactory("testPu");
EntityManager em = emf.createEntityManager();

Perhaps I could specify the persistence unit name in my @Deployment method...

Thoughts?

[kpiwko]

Hi Michal,

have you tried the following? It does work for CDI, which is likely your environment (@ApplicationScoped, @Inject annotations)

@RunWith(Arquillian.class)
public class AuctionManagerTest
{

   @Deployment
   public static Archive<?> jar() {
      return ...;
   }
   
   @PersistenceContext(unitName = "jeelabPU")
   @Produces
   @Default
   EntityManager em;
   
   @EJB
   AuctionManager auctionManager;
      
   @Test
   public void retrieveAuctions() {
       // here it the auctionManager is using jeelabPU
   }
}

See https://github.com/kpiwko/auction/blob/red-hat-dev-conf/src/test/java/org/jboss/lectures/auction/ejb/AuctionManagerTest.java for full example.

[m1ckey]

Hi Karel, thanks for your reply. I will try it when I get home, but:

1. In the test method, am I using the em field directly?
2. Does it have to be an EJB?

[kpiwko]

In the test method, am I using the em field directly?

No, this is not required. Your DAO will have correct EM injected.

Does it have to be an EJB?

I haven't tried it. That's up to you.

[aslak]

I think the missing piece of information in the original post is: Michal wants this in a pure CDI Container, e.g. Weld.

[m1ckey]

Yeah. Thanks Aslak.

[lexsoto]

Does it work for testing EJB3 also?

[m1ckey]

Hi Alex, at the moment nothing works. My changes are not committed yet. I would expect it to work for EJB as well.