@Test
  public void testSingleHost() throws Exception {
    HostMessenger hm = createHostMessenger(0);

    Mailbox m1 = hm.createMailbox();

    SiteMailbox sm = new SiteMailbox(hm, (-2L << 32));

    hm.createMailbox(sm.getHSId(), sm);

    sm.send(m1.getHSId(), new LocalObjectMessage(null));
    m1.send(sm.getHSId(), new LocalObjectMessage(null));

    LocalObjectMessage lom = (LocalObjectMessage) m1.recv();
    assertEquals(lom.m_sourceHSId, sm.getHSId());

    lom = (LocalObjectMessage) sm.recv();
    assertEquals(lom.m_sourceHSId, m1.getHSId());
  }