'A message logged to the given ``LogPublisher`` is converted to an
Eliot log message.'

@validateLogging(None)
def test_message(self, logger):

    publisher = LogPublisher()
    observer = EliotObserver(publisher)
    observer.logger = logger
    publisher.addObserver(observer)
    publisher.msg('Hello', 'world')
    assertHasMessage(self, logger, TWISTED_LOG_MESSAGE, dict(error=False, message=u'Hello    world'))
