test: add test_post_health

tests/test_plugins_monitor.py

@@ -160,6 +160,12 @@ class TestPluginsMonitor(unittest.TestCase):
         self.assertEqual(status["exists"], False)
         self.assertEqual(status["has_content"], False)
 
+    def test_post_health(self):
+        print(self._testMethodName)
+
+        self.config.monitoring.heartbeat.frequency = 0  # disable timer
+        self.monitor.post_health(data=None, is_healthy=True)
+
 
 if __name__ == "__main__":
     unittest.main()