Refactors test structure

test/simulator/zmq_publisher.py

@@ -0,0 +1,12 @@
+import zmq
+
+
+class ZMQPublisher:
+    def __init__(self, topic, feed_protocol, feed_addr, feed_port):
+        self.topic = topic
+        self.context = zmq.Context()
+        self.socket = self.context.socket(zmq.PUB)
+        self.socket.bind("%s://%s:%s" % (feed_protocol, feed_addr, feed_port))
+
+    def publish_data(self, data):
+        self.socket.send_multipart([self.topic, data])