diff --git a/tests/test_duplicate_operation_id.py b/tests/test_duplicate_operation_id.py
index 437311ec57..f7d02249d4 100644
--- a/tests/test_duplicate_operation_id.py
+++ b/tests/test_duplicate_operation_id.py
@@ -1,4 +1,5 @@
 """Test for fix of issue #13175: duplicate operation IDs with multi-method routes"""
+
 from fastapi import FastAPI
 from fastapi.testclient import TestClient
 
@@ -14,37 +15,37 @@ def test_no_duplicate_operation_ids_with_multiple_methods():
     client = TestClient(app)
     response = client.get("/openapi.json")
     assert response.status_code == 200
-    
+
     data = response.json()
-    
+
     # Check that all three methods exist in the OpenAPI schema
     paths = data.get("paths", {})
     items_path = paths.get("/items/", {})
-    
+
     assert "get" in items_path
     assert "post" in items_path
     assert "delete" in items_path
-    
+
     # Verify each method has a unique operation ID
     get_op_id = items_path["get"].get("operationId")
     post_op_id = items_path["post"].get("operationId")
     delete_op_id = items_path["delete"].get("operationId")
-    
+
     # All should exist
     assert get_op_id is not None
     assert post_op_id is not None
     assert delete_op_id is not None
-    
+
     # All should be different
     assert get_op_id != post_op_id
     assert get_op_id != delete_op_id
     assert post_op_id != delete_op_id
-    
+
     # Verify they follow the pattern: <name>_<path>_<method>
     assert "handle_items_items_" in get_op_id
     assert "handle_items_items_" in post_op_id
     assert "handle_items_items_" in delete_op_id
-    
+
     assert "_get" in get_op_id
     assert "_post" in post_op_id
     assert "_delete" in delete_op_id
@@ -53,4 +54,3 @@ def test_no_duplicate_operation_ids_with_multiple_methods():
 if __name__ == "__main__":
     test_no_duplicate_operation_ids_with_multiple_methods()
     print("✓ Test passed!")
-