Arquillian Persistence - Startup Bean中的EntityManager找不到测试数据

我正在尝试使用arquillian-persistence-impl 1.0.0.ALPHA6测试从数据库加载国家的Singleton Startup Bean .

如果我运行测试类并尝试访问通过@UsingDataSet提供的测试数据元组之一，一切正常 .

这是Arquillian测试类的样子

@RunWith(Arquillian.class)
public class CountryDAOTest {

    @Inject
    CountryDAO dao;

    @Produces
    @PersistenceContext(unitName="test-pu")
    EntityManager em;

    @Inject
    UserTransaction ut;

    @Deployment
    public static JavaArchive createDeployment() {

        JavaArchive jar = ShrinkWrap.create(JavaArchive.class)
                    .addClass(CountryDAO.class)
                    .addClass(UserTransaction.class)
                    .addAsResource("test-persistence.xml", "META-INF/persistence.xml")
                    .addAsManifestResource("jbossas-ds.xml")
                    .addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
                 System.out.println(jar.toString(true));
                 return jar;
    }

    @Test
    @UsingDataSet("db-data/countryDAOTest-country.yml")
    @ShouldMatchDataSet("db-data/countryDAOTest-country-verify.yml")
    public void getCountryFromDAO(){    

        TypedQuery<Country> query = em.createQuery("FROM Country", Country.class);
        List<Country> newCountriesList = query.getResultList();
        System.out.println("LOADED COUNTRIES IN TEST CLASS: "+newCountriesList.size());/*this works fine and returns 2 elements */

        List<Country> daoCountry = dao.getCountries();
        System.out.println("LOADED COUNTRIES FROM DAO: "+daoCountry.size()); /*this returns 0 elements */

    }
}

如果我尝试通过我的Singleton Startup CountryDAO调用数据库它在测试数据库中找不到任何数据 .

@Startup
@Singleton
public class CountryDAO {

    @Inject
    private EntityManager entityManager;
    private List<Country> countries;

    @PostConstruct
    public void init(){
        TypedQuery<Country> query = entityManager.createQuery("FROM Country", Country.class);
        List<Country> newCountriesList = query.getResultList();

        System.out.println("LOADED COUNTRIES ON POSTCONSTRUCT:"+newCountriesList.size()); /* returns 0 elements */

        countries = Collections.unmodifiableList(newCountriesList);
    }

    public synchronized List<Country> getCountries(){
        return countries;
    }
}

我也尝试在我的dao entityManager上使用@PersistenceContext注释，结果相同 .

我使用jboss AS 7.1.1作为测试容器 .

我的DAO entityManager没有找到我的测试数据的任何想法？