Test mail being sent in Flask Selenium tests

gistfile1.txt

def _worker(app, port, queue):
    from flask.ext.mail import email_dispatched
    def queue_message(message, app):
        if app.testing:
            queue.put(message)
    email_dispatched.connect(queue_message)
    app.run(port=port)


class MailServerTestCase(LiveServerTestCase):

    def _spawn_live_server(self):
        self._process = None
        self.port = self.app.config.get('LIVESERVER_PORT', 5000)
        self.outbox = Queue()

        self._process = multiprocessing.Process(
            target=_worker, args=(self.app, self.port, self.outbox)
        )

        self._process.start()

        # we must wait the server start listening
        time.sleep(1)