diff --git a/tests/conftest.py b/tests/conftest.py
index bef5003de2..5da6e87e2f 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -118,6 +118,7 @@ async def fail_test_on_unclosed_tasks(request: FixtureRequest):
     Used on every test to ensure failure if there are pending tasks
     by the end of the test.
     """
+    raise RuntimeError(sys.platform)
 
     try:
         fail_count = request.session.testsfailed