tests/test_posix.py::test_get_shell[mapping0-result0] fails with 1.5.2+

$ python -m pytest
========================================================= test session starts =========================================================
platform linux -- Python 3.11.4, pytest-7.4.0, pluggy-1.2.0
rootdir: /tmp/shellingham
plugins: mock-3.11.1
collected 1 item                                                                                                                      

tests/test_posix.py F                                                                                                           [100%]

============================================================== FAILURES ===============================================================
__________________________________________________ test_get_shell[mapping0-result0] ___________________________________________________

mocker = <pytest_mock.plugin.MockerFixture object at 0x7f928f57d8d0>, environ = <test_posix.EnvironManager object at 0x7f9290491550>
mapping = {'1480': Process(args=('/Applications/iTerm.app/Contents/MacOS/iTerm2', '--server', 'login', '-fp', 'keegan'), pid='14...s=('screen',), pid='1556', ppid='1482'), '1558': Process(args=('-/usr/local/bin/bash',), pid='1558', ppid='1557'), ...}
result = ('bash', '==MOCKED=LOGIN=SHELL==/bash')

    @pytest.mark.parametrize('mapping, result', [
        (   # Based on pypa/pipenv#2496, provided by @keegancsmith.
            MAPPING_EXAMPLE_KEEGANCSMITH, ('bash', '==MOCKED=LOGIN=SHELL==/bash'),
        ),
    ])
    def test_get_shell(mocker, environ, mapping, result):
        environ.patch(SHELL='==MOCKED=LOGIN=SHELL==/bash')
>       mocker.patch.object(posix, '_get_process_mapping', return_value=mapping)

tests/test_posix.py:86: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
.venv/lib/python3.11/site-packages/pytest_mock/plugin.py:255: in object
    return self._start_patch(
.venv/lib/python3.11/site-packages/pytest_mock/plugin.py:220: in _start_patch
    mocked: MockType = p.start()
/usr/lib/python3.11/unittest/mock.py:1591: in start
    result = self.__enter__()
/usr/lib/python3.11/unittest/mock.py:1443: in __enter__
    original, local = self.get_original()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <unittest.mock._patch object at 0x7f928f5cb850>

    def get_original(self):
        target = self.getter()
        name = self.attribute

        original = DEFAULT
        local = False

        try:
            original = target.__dict__[name]
        except (AttributeError, KeyError):
            original = getattr(target, name, DEFAULT)
        else:
            local = True

        if name in _builtins and isinstance(target, ModuleType):
            self.create = True

        if not self.create and original is DEFAULT:
>           raise AttributeError(
                "%s does not have the attribute %r" % (target, name)
            )
E           AttributeError: <module 'shellingham.posix' from '/tmp/shellingham/.venv/lib/python3.11/site-packages/shellingham/posix/__init__.py'> does not have the attribute '_get_process_mapping'

/usr/lib/python3.11/unittest/mock.py:1416: AttributeError
======================================================= short test summary info =======================================================
FAILED tests/test_posix.py::test_get_shell[mapping0-result0] - AttributeError: <module 'shellingham.posix' from '/tmp/shellingham/.venv/lib/python3.11/site-packages/shellingham/posix/__init__.p...
========================================================== 1 failed in 0.16s ==========================================================

This is on Gentoo Linux amd64, Python 3.11.4, shellingham 1.5.3 (b8ba512b6f53807416fa446ccec295c79131cc76).

bisect blames 7bf9e76accdf6e9e92f8e27f9c9341e47ea8489d. Indeed, it seems that _get_process_mapping() was removed there.

Also, it seems that CI doesn't actually run tests, since only test env runs tests, and CI runs all the other envs that apparently only install the package.

sarugaku / shellingham

tests/test_posix.py::test_get_shell[mapping0-result0] fails with 1.5.2+ #80