def test_rgreenlet():

       gw = py.execnet.PopenGateway()

->     bunch = RGreenletBunch(gw)

       g = bunch.greenlet('''

           x = greenlet.getcurrent().parent.switch(42)

           y = greenlet.getcurrent().parent.switch(x+1)

           greenlet.getcurrent().parent.switch(y+2)

           import os

           greenlet.getcurrent().parent.switch(os.getpid())

       ''')

       result = g.switch()

       assert result == 42

       result = g.switch(102)

       assert result == 103

       result = g.switch(-93)

       assert result == -91

       import os

       result = g.switch()

       assert result != os.getpid()

   def __init__(self, gateway):

       self.channel = gateway.remote_exec('''

               from py.magic import greenlet

               glob = {"greenlet": greenlet}

               gids = {}

               while True:

                   key, code, args = channel.receive()

                   if args is not None:

                       if code is not None:

                           def run(code=code):

                               exec code in glob, {}

                           gids[key] = greenlet(run)

                       result = gids[key].switch(*args)

                       channel.send(result)

                   else:

                       del gids[key]

->         ''')