<launch>
  <!-- the gist of this test is to have a listener registered to a topic before the publisher comes online -->
  <node name="listenerpublisher" pkg="test_rospy" type="listenerpublisher.py" />
  <test test-name="rospy_pubsub_order" pkg="test_rospy" type="test_pubsub_order.py" />
</launch>
