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/**
* Iterates through all mapped Hibernate classes and attempts to select
* all for that table/class pair. If this test does not fail then this
* indicates that the hibernate mappings at the very minimum match the
* database schema.
*/
@Test
public void allHibernateMappingsWork()
{
    Configuration configuration = new Configuration();
    configuration.setProperty(Environment.SHOW_SQL, "true");
    
    SessionFactory sessionFactory = configuration.configure().buildSessionFactory();
    Session session = sessionFactory.openSession();
    
    Map metaData = sessionFactory.getAllClassMetadata();
    for (Iterator i = metaData.values().iterator(); i.hasNext();)
    {
        EntityPersister persister = (EntityPersister) i.next();
        String className = persister.getClassMetadata().getEntityName();
        String qry = "from " + className + " c";
        List result = session.createQuery(qry).list();
        assertTrue("No results for " + className, result.size() > 0);
    }
    
    session.close();
}