def test_custom_toml_file(self, tmp_path: Path) -> None:
        """.toml files without [tool.pytest.ini_options] are not considered for configuration."""
        fn = tmp_path / "myconfig.toml"
        fn.write_text(
            dedent(
                """
            [build_system]
            x = 1
            """
            ),
            encoding="utf-8",
        )
        assert load_config_dict_from_file(fn) is None
.toml files without [tool.pytest.ini_options] are not considered for configuration.
testing/test_findpaths.py