diff --git a/tests/test_yroom.py b/tests/test_yroom.py
index e7398ba..cc9da59 100644
--- a/tests/test_yroom.py
+++ b/tests/test_yroom.py
@@ -1,13 +1,14 @@
-from pycrdt_websocket.yroom import YRoom
 import pytest
-from anyio.abc import TaskStatus
 from anyio import TASK_STATUS_IGNORED, sleep
+from anyio.abc import TaskStatus
 from pycrdt import Map
 
 from pycrdt_websocket import exception_logger
+from pycrdt_websocket.yroom import YRoom
 
 pytestmark = pytest.mark.anyio
 
+
 @pytest.mark.parametrize("websocket_server_api", ["websocket_server_start_stop"], indirect=True)
 @pytest.mark.parametrize("yws_server", [{"exception_handler": exception_logger}], indirect=True)
 async def test_yroom_restart(yws_server, yws_provider):
@@ -19,14 +20,12 @@ async def raise_error(task_status: TaskStatus[None] = TASK_STATUS_IGNORED):
         raise RuntimeError("foo")
 
     yroom.ydoc = yws_provider
-    await server.start_room(yroom)  
+    await server.start_room(yroom)
     yroom.ydoc["map"] = ymap1 = Map()
-    ymap1["key"] = "value" 
+    ymap1["key"] = "value"
     await yroom._task_group.start(raise_error)
-    ymap1["key2"] = "value2" 
+    ymap1["key2"] = "value2"
     await sleep(0.1)
     assert yroom._task_group is not None
     assert not yroom._task_group.cancel_scope.cancel_called
     await yroom.stop()
-
-