test_shutil.py 文件源码

def test_chown(self):

        # cleaned-up automatically by TestShutil.tearDown method
        dirname = self.mkdtemp()
        filename = tempfile.mktemp(dir=dirname)
        write_file(filename, 'testing chown function')

        with self.assertRaises(ValueError):
            shutil.chown(filename)

        with self.assertRaises(LookupError):
            shutil.chown(filename, user='non-exising username')

        with self.assertRaises(LookupError):
            shutil.chown(filename, group='non-exising groupname')

        with self.assertRaises(TypeError):
            shutil.chown(filename, b'spam')

        with self.assertRaises(TypeError):
            shutil.chown(filename, 3.14)

        uid = os.getuid()
        gid = os.getgid()

        def check_chown(path, uid=None, gid=None):
            s = os.stat(filename)
            if uid is not None:
                self.assertEqual(uid, s.st_uid)
            if gid is not None:
                self.assertEqual(gid, s.st_gid)

        shutil.chown(filename, uid, gid)
        check_chown(filename, uid, gid)
        shutil.chown(filename, uid)
        check_chown(filename, uid)
        shutil.chown(filename, user=uid)
        check_chown(filename, uid)
        shutil.chown(filename, group=gid)
        check_chown(filename, gid=gid)

        shutil.chown(dirname, uid, gid)
        check_chown(dirname, uid, gid)
        shutil.chown(dirname, uid)
        check_chown(dirname, uid)
        shutil.chown(dirname, user=uid)
        check_chown(dirname, uid)
        shutil.chown(dirname, group=gid)
        check_chown(dirname, gid=gid)

        user = pwd.getpwuid(uid)[0]
        group = grp.getgrgid(gid)[0]
        shutil.chown(filename, user, group)
        check_chown(filename, uid, gid)
        shutil.chown(dirname, user, group)
        check_chown(dirname, uid, gid)