public void ShouldExecuteDisposeOlnyOne()
        {
            SessionFactoryProvider sfp;
            ISessionFactory        sf1;
            bool disposed = false;

            using (sfp = new SessionFactoryProvider())
            {
                sfp.BeforeCloseSessionFactory += ((sender, e) => disposed = true);
                sf1 = sfp.GetFactory(null);
            }
            Assert.That(disposed);
            Assert.That(sf1.IsClosed, "The session-factory should be closed.");
            disposed = false;
            sfp.Dispose();
            Assert.That(!disposed);
        }