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How to use _wait_for_subscriptions method in tavern

Best Python code snippet using tavern

client.py

Source:client.py

...178        else:179            return msg180    def publish(self, topic, payload=None, qos=None, retain=None):181        """publish message using paho library"""182        self._wait_for_subscriptions()183        logger.debug("Publishing on '%s'", topic)184        kwargs = {}185        if qos is not None:186            kwargs["qos"] = qos187        if retain is not None:188            kwargs["retain"] = retain189        msg = self._client.publish(topic, payload, **kwargs)190        if not msg.is_published:191            raise exceptions.MQTTError(192                "err {:s}: {:s}".format(193                    _err_vals.get(msg.rc, "unknown"), paho.error_string(msg.rc)194                )195            )196        return msg197    def _wait_for_subscriptions(self):198        """Wait for all pending subscriptions to finish"""199        logger.debug("Checking subscriptions")200        def not_finished_subscribing_to():201            """Get topic names for topics which have not finished subcribing to"""202            return [i.topic for i in self._subscribed.values() if not i.subscribed]203        to_wait_for = not_finished_subscribing_to()204        if to_wait_for:205            elapsed = 0.0206            while elapsed < self._connect_timeout:207                # TODO208                # configurable?209                time.sleep(0.25)210                elapsed += 0.25211                to_wait_for = not_finished_subscribing_to()...

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