test_ok2/changelog/11315.trivial.rst

The :fixture:`pytester` fixture now uses the :fixture:`monkeypatch` fixture to manage the current working directory.
If you use ``pytester`` in combination with :func:`monkeypatch.undo() <pytest.MonkeyPatch.undo>`, the CWD might get restored.
Use :func:`monkeypatch.context() <pytest.MonkeyPatch.context>` instead.
pytester: use monkeypatch.chdir() for dir changing The current method as the following problem, described by Sadra Barikbin: The tests that request both `pytester` and `monkeypatch` and use `monkeypatch.chdir` without context, relying on `monkeypatch`'s teardown to restore cwd. This doesn't work because the following sequence of actions take place: - `monkeypatch` is set up. - `pytester` is set up. It saves the original cwd and changes it to a new one dedicated to the test function. - Test function calls `monkeypatch.chdir()` without context. `monkeypatch` saves cwd, which is not the original one, before changing it. - `pytester` is torn down. It restores the cwd to the original one. - `monkeypatch` is torn down. It restores cwd to what it has saved. The solution here is to have pytester use `monkeypatch.chdir()` itself, then everything is handled correctly. 2023-08-16 03:09:00 +08:00			The :fixture:`pytester` fixture now uses the :fixture:`monkeypatch` fixture to manage the current working directory.
			If you use ``pytester`` in combination with :func:`monkeypatch.undo() <pytest.MonkeyPatch.undo>`, the CWD might get restored.
			Use :func:`monkeypatch.context() <pytest.MonkeyPatch.context>` instead.