'L{recv1msg} will retrieve a message sent via L{send1msg}.'

def test_roundtrip(self):

    message = 'hello,    world!'
    self.assertEqual(len(message), send1msg(self.input.fileno(), message, 0))
    result = recv1msg(fd=self.output.fileno())
    self.assertEqual(result, (message, 0, []))
