Need to retain this.

Author: gianchub

tests/test_db_util.py

@@ -259,6 +259,9 @@ def test_create_database_sqlite_file_already_exists(self, tmp_path):
         create_database(uri)
         assert db_file.exists()
 
+        # Cleanup
+        db_file.unlink()
+
     def test_create_database_unsupported_scheme(self):
         """Test that unsupported schemes raise ValueError."""
         uri = "mysql://user:pass@localhost/db"