Add more tests for worker/mqtt.py

wgkex/worker/mqtt_test.py

@@ -1,8 +1,13 @@
 """Unit tests for mqtt.py"""
+import socket
 import threading
 import unittest
+from time import sleep
+
 import mock
+import paho.mqtt.client
 
+from wgkex.common.mqtt import TOPIC_CONNECTED_PEERS
 from wgkex.worker import mqtt
 
 
@@ -90,6 +95,43 @@ def test_on_message_wireguard_fails_no_domain(self, config_mock, link_mock):
  with self.assertRaises(ValueError):
  mqtt.on_message_wireguard(None, None, mqtt_msg)
 
+ @mock.patch.object(mqtt, "get_config")
+ @mock.patch.object(mqtt, "get_connected_peers_count")
+ def test_publish_metrics_loop_success(self, conn_peers_mock, config_mock):
+ config_mock.return_value = _get_config_mock()
+ conn_peers_mock.return_value = 20
+ mqtt_client = mock.MagicMock(spec=paho.mqtt.client.Client)
+
+ ee = threading.Event()
+ thread = threading.Thread(
+ target=mqtt.publish_metrics_loop,
+ args=(ee, mqtt_client, "_ffmuc_domain.one"),
+ )
+ thread.start()
+
+ i = 0
+ while i < 20 and not mqtt_client.publish.called:
+ i += 1
+ sleep(0.1)
+
+ conn_peers_mock.assert_called_with("wg-domain.one")
+ mqtt_client.publish.assert_called_with(
+ TOPIC_CONNECTED_PEERS.format(
+ domain="_ffmuc_domain.one", worker=socket.gethostname()
+ ),
+ 20,
+ retain=True,
+ )
+
+ ee.set()
+
+ i = 0
+ while i < 20 and thread.is_alive():
+ i += 1
+ sleep(0.1)
+
+ self.assertFalse(thread.is_alive())
+
 
 if __name__ == "__main__":
  unittest.main()