Use Plex websocket payloads to reduce overhead (#42332)

Co-authored-by: Paulus Schoutsen <balloob@gmail.com>

tests/components/plex/helpers.py

@@ -1,8 +1,39 @@
 """Helper methods for Plex tests."""
-from plexwebsocket import SIGNAL_DATA
+from datetime import timedelta
+
+from plexwebsocket import SIGNAL_CONNECTION_STATE, SIGNAL_DATA, STATE_CONNECTED
+
+import homeassistant.util.dt as dt_util
+
+from tests.common import async_fire_time_changed
+
+UPDATE_PAYLOAD = {
+    "PlaySessionStateNotification": [
+        {
+            "sessionKey": "999",
+            "ratingKey": "12345",
+            "viewOffset": 5050,
+            "playQueueItemID": 54321,
+            "state": "playing",
+        }
+    ]
+}
 
 
-def trigger_plex_update(mock_websocket):
-    """Call the websocket callback method."""
+def websocket_connected(mock_websocket):
+    """Call the websocket callback method to signal successful connection."""
     callback = mock_websocket.call_args[0][1]
-    callback(SIGNAL_DATA, None, None)
+    callback(SIGNAL_CONNECTION_STATE, STATE_CONNECTED, None)
+
+
+def trigger_plex_update(mock_websocket, payload=UPDATE_PAYLOAD):
+    """Call the websocket callback method with a Plex update."""
+    callback = mock_websocket.call_args[0][1]
+    callback(SIGNAL_DATA, payload, None)
+
+
+async def wait_for_debouncer(hass):
+    """Move time forward to wait for sensor debouncer."""
+    next_update = dt_util.utcnow() + timedelta(seconds=3)
+    async_fire_time_changed(hass, next_update)
+    await hass.async_block_till_done()