tests/test-dirs.py

rust: update the rust-cpython crate to 0.7.0

This notably brings support for Python 3.10, and includes the panic message
when propagating a Rust panic as a Python exception.

https://github.com/dgrunwald/rust-cpython/blob/master/CHANGELOG.md#070---2021-10-09

Differential Revision: https://phab.mercurial-scm.org/D11630

from __future__ import absolute_import

import unittest

import silenttestrunner

from mercurial import pathutil


class dirstests(unittest.TestCase):
    def testdirs(self):
        for case, want in [
            (b'a/a/a', [b'a', b'a/a', b'']),
            (b'alpha/beta/gamma', [b'', b'alpha', b'alpha/beta']),
        ]:
            d = pathutil.dirs([])
            d.addpath(case)
            self.assertEqual(sorted(d), sorted(want))

    def testinvalid(self):
        with self.assertRaises(ValueError):
            d = pathutil.dirs([])
            d.addpath(b'a//b')


if __name__ == '__main__':
    silenttestrunner.main(__name__)