import stat import sys from unittest.mock import Mock from setuptools import _shutil def test_rmtree_readonly(monkeypatch, tmp_path): """Verify onerr works as expected""" tmp_dir = tmp_path / "with_readonly" tmp_dir.mkdir() some_file = tmp_dir.joinpath("file.txt") some_file.touch() some_file.chmod(stat.S_IREAD) expected_count = 1 if sys.platform.startswith("win") else 0 chmod_fn = Mock(wraps=_shutil.attempt_chmod_verbose) monkeypatch.setattr(_shutil, "attempt_chmod_verbose", chmod_fn) _shutil.rmtree(tmp_dir) assert chmod_fn.call_count == expected_count assert not tmp_dir.is_dir()