old_contents: from membrane import Membrane, Proxy
  from rt import Wait
  
  def test_membrane():
      m1 = Membrane.create()
      m1.transport = {'protocol': 'null',
                      'membrane': m1}
      m2 = Membrane.create()
      m2.transport = {'protocol': 'null',
                      'membrane': m1}
      m1 << 'start'
      m2 << 'start'
  
      w = Wait.create()
      actor1 = Wait.create()
      actor2 = Wait.create()
  
      m2 << {'get_uid': actor2,
             'reply_to': w}
      u2 = w.act()['uid']
  
      m1 << {'create_proxy': u2,
             'transport': {'protocol': 'null',
                           'membrane': m2},
             'reply_to': w}
      proxy = w.act()['proxy']
      proxy << {'foo': 5,
                'reply_to': actor1}
  
      msg = actor2.act()
      assert msg['foo'] == 5
  
      proxy2 = msg['reply_to']
      assert isinstance(proxy2, Proxy)
  
      proxy2 << {'bar': 3,
                 'reply_to': actor2}
      msg = actor1.act()
      assert msg['bar'] == 3
      assert msg['reply_to'] is proxy
      
  
      
      
new_contents: from membrane import Membrane, Proxy
  from rt import Wait
  
  def test_membrane():
      m1 = Membrane.create()
      m1.transport = {'protocol': 'null',
                      'membrane': m1}
      m2 = Membrane.create()
      m2.transport = {'protocol': 'null',
                      'membrane': m2}
      m1 << 'start'
      m2 << 'start'
  
      w = Wait.create()
      actor1 = Wait.create()
      actor2 = Wait.create()
  
      m2 << {'get_uid': actor2,
             'reply_to': w}
      u2 = w.act()['uid']
  
      m1 << {'create_proxy': u2,
             'transport': {'protocol': 'null',
                           'membrane': m2},
             'reply_to': w}
      proxy = w.act()['proxy']
      proxy << {'foo': 5,
                'reply_to': actor1}
  
      msg = actor2.act()
      assert msg['foo'] == 5
  
      proxy2 = msg['reply_to']
      assert isinstance(proxy2, Proxy)
  
      proxy2 << {'bar': 3,
                 'reply_to': actor2}
      msg = actor1.act()
      assert msg['bar'] == 3
      assert msg['reply_to'] is proxy
      
  
      
      
subject: Fix bug in test