def test_nodeid_handling_windows_paths(self, pytester: Pytester, tmp_path) -> None:
        """Test the correct handling of Windows-style paths with backslashes."""
        pytester.makeini("[pytest]")  # Change `config.rootpath`

        test_path = pytester.path / "tests" / "test_foo.py"
        test_path.parent.mkdir()
        os.chdir(test_path.parent)  # Change `config.invocation_params.dir`

        test_path.write_text(
            textwrap.dedent(
                """
                import pytest

                @pytest.mark.parametrize("a", ["x/y", "C:/path", "\\\\", "C:\\\\path", "a::b/"])
                def test_x(a):
                    assert False
                """
            ),
            encoding="utf-8",
        )

        result = pytester.runpytest("-v")

        result.stdout.re_match_lines(
            [
                r".*test_foo.py::test_x\[x/y\] .*FAILED.*",
                r".*test_foo.py::test_x\[C:/path\] .*FAILED.*",
                r".*test_foo.py::test_x\[\\\\\] .*FAILED.*",
                r".*test_foo.py::test_x\[C:\\\\path\] .*FAILED.*",
                r".*test_foo.py::test_x\[a::b/\] .*FAILED.*",
            ]
        )
Test the correct handling of Windows-style paths with backslashes.
testing/test_terminal.py