Function test_get_user_handles_getpass_oserror

testing/test_tmpdir.py:720–729

Regression test: get_user() should return None when getpass.getuser() raises OSError (Python 3.13+ behavior, #13835).

(monkeypatch: MonkeyPatch)

def test_get_user_handles_getpass_oserror(monkeypatch: MonkeyPatch) -> None:
    """Regression test: get_user() should return None when getpass.getuser()
    raises OSError (Python 3.13+ behavior, #13835)."""
    import getpass

    def _raise_oserror():
        raise OSError("No username set in the environment")

    monkeypatch.setattr(getpass, "getuser", _raise_oserror)
    assert get_user() is None