Fixup mock in test_executable_missing_post_creation to work with "ven…

[hroncok]

…v" scheme

After #434 the test would error:

____________________ test_executable_missing_post_creation _____________________

mocker = <pytest_mock.plugin.MockerFixture object at 0x7f9a75401a80>

    @pytest.mark.skipif(IS_PYPY3, reason='PyPy3 uses get path to create and provision venv')
    def test_executable_missing_post_creation(mocker):
        mocker.patch.object(build.env, '_should_use_virtualenv', lambda: False)
        original_get_paths = sysconfig.get_paths

        def _get_paths(vars):  # noqa
            shutil.rmtree(vars['base'])
            return original_get_paths(vars=vars)

        get_paths = mocker.patch('sysconfig.get_paths', side_effect=_get_paths)
        with pytest.raises(RuntimeError, match='Virtual environment creation failed, executable .* missing'):
>           with build.env.IsolatedEnvBuilder():

tests/test_env.py:73:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
.../site-packages/build/env.py:104: in __enter__
    executable, scripts_dir = _create_isolated_env_venv(self._path)
.../site-packages/build/env.py:258: in _create_isolated_env_venv
    executable, script_dir, purelib = _find_executable_and_scripts(path)
.../site-packages/build/env.py:298: in _find_executable_and_scripts
    paths = sysconfig.get_paths(scheme='venv', vars=config_vars)
/usr/lib64/python3.10/unittest/mock.py:1104: in __call__
    return self._mock_call(*args, **kwargs)
/usr/lib64/python3.10/unittest/mock.py:1108: in _mock_call
    return self._execute_mock_call(*args, **kwargs)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <MagicMock name='get_paths' id='140301368829136'>, args = ()
kwargs = {'scheme': 'venv', 'vars': {'ABIFLAGS': '', 'AC_APPLE_UNIVERSAL_BUILD': 0, 'AIX_BUILDDATE': 0, 'AIX_GENUINE_CPLUSPLUS': 0, ...}}
effect = <function test_executable_missing_post_creation.<locals>._get_paths at 0x7f9a754ac5e0>

    def _execute_mock_call(self, /, *args, **kwargs):
        # separate from _increment_mock_call so that awaited functions are
        # executed separately from their call, also AsyncMock overrides this method

        effect = self.side_effect
        if effect is not None:
            if _is_exception(effect):
                raise effect
            elif not _callable(effect):
                result = next(effect)
                if _is_exception(result):
                    raise result
            else:
>               result = effect(*args, **kwargs)
E               TypeError: test_executable_missing_post_creation.<locals>._get_paths() got an unexpected keyword argument 'scheme'

/usr/lib64/python3.10/unittest/mock.py:1169: TypeError

That only happens when not installed in a virtual environment,
so it was not discovered on CI or via tox.

[FFY00]

Thank you. I have one nitpick.

[FFY00]

Thanks!