add websocket client test

websocket-client-test.py

@@ -0,0 +1,12 @@
+#!/usr/bin/env python
+
+import asyncio
+from websockets.sync.client import connect
+
+def hello():
+    with connect("ws://localhost:8765") as websocket:
+        websocket.send("Hello world!")
+        message = websocket.recv()
+        print(f"Received: {message}")
+
+hello()