Method test_realpath_basic

Lib/test/test_ntpath.py:544–568

(self, kwargs)

    @unittest.skipUnless(HAVE_GETFINALPATHNAME, 'need _getfinalpathname')
    @_parameterize({}, {'strict': True}, {'strict': ALLOW_MISSING})
    def test_realpath_basic(self, kwargs):
        ABSTFN = ntpath.abspath(os_helper.TESTFN)
        open(ABSTFN, "wb").close()
        self.addCleanup(os_helper.unlink, ABSTFN)
        self.addCleanup(os_helper.unlink, ABSTFN + "1")

        os.symlink(ABSTFN, ABSTFN + "1")
        self.assertPathEqual(ntpath.realpath(ABSTFN + "1", **kwargs), ABSTFN)
        self.assertPathEqual(ntpath.realpath(os.fsencode(ABSTFN + "1"), **kwargs),
                         os.fsencode(ABSTFN))

        # gh-88013: call ntpath.realpath with binary drive name may raise a
        # TypeError. The drive should not exist to reproduce the bug.
        drives = {f"{c}:\\" for c in string.ascii_uppercase} - set(os.listdrives())
        d = drives.pop().encode()
        self.assertEqual(ntpath.realpath(d, strict=False), d)

        # gh-106242: Embedded nulls and non-strict fallback to abspath
        if kwargs:
            with self.assertRaises(OSError):
                ntpath.realpath(os_helper.TESTFN + "\0spam",
                                **kwargs)
        else:
            self.assertEqual(ABSTFN + "\0spam",
                                ntpath.realpath(os_helper.TESTFN + "\0spam", **kwargs))

    @os_helper.skip_unless_symlink
    @unittest.skipUnless(HAVE_GETFINALPATHNAME, 'need _getfinalpathname')