From b370996b9d2fc9aaec356013a698711ee3e127cc Mon Sep 17 00:00:00 2001
From: "devin-ai-integration[bot]"
 <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Date: Wed, 30 Sep 2026 04:44:43 -0700
Subject: [PATCH] test(router): settle the shared logging worker before
 recording shadow callbacks (#43847)

* test(router): settle the shared logging worker before recording shadow callbacks

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* test(router): always stop the shared logging worker after settling it

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

---------

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
---
 tests/unit/test_router_silent_experiment.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tests/unit/test_router_silent_experiment.py b/tests/unit/test_router_silent_experiment.py
index ab65e09e133..722a76fa7ef 100644
--- a/tests/unit/test_router_silent_experiment.py
+++ b/tests/unit/test_router_silent_experiment.py
@@ -9,6 +9,7 @@ import pytest
 
 import litellm
 from litellm.integrations.custom_logger import CustomLogger
+from litellm.litellm_core_utils.logging_worker import GLOBAL_LOGGING_WORKER
 from litellm.router import Router
 from litellm.router import _silent_experiment_kwargs_snapshot
 from litellm.router import _silent_experiment_targets
@@ -30,8 +31,20 @@ class _RecordingLogger(CustomLogger):
         ]
 
 
+async def _settle_shared_logging_worker() -> None:
+    try:
+        await GLOBAL_LOGGING_WORKER.flush()
+    finally:
+        await GLOBAL_LOGGING_WORKER.stop()
+
+
 @pytest.fixture
 def recording_logger():
+    settle_loop: Final = asyncio.new_event_loop()
+    try:
+        settle_loop.run_until_complete(_settle_shared_logging_worker())
+    finally:
+        settle_loop.close()
     original_callbacks: Final = litellm.callbacks
     logger: Final = _RecordingLogger()
     litellm.callbacks = [logger]