Python test.support.temp_cwd() Examples

def test_files_list(self):
        """Make sure the directories are inspected for source files
           bpo-31920
        """
        text1 = 'Text to translate1'
        text2 = 'Text to translate2'
        text3 = 'Text to ignore'
        with temp_cwd(None), temp_dir(None) as sdir:
            os.mkdir(os.path.join(sdir, 'pypkg'))
            with open(os.path.join(sdir, 'pypkg', 'pymod.py'), 'w') as sfile:
                sfile.write(f'_({text1!r})')
            os.mkdir(os.path.join(sdir, 'pkg.py'))
            with open(os.path.join(sdir, 'pkg.py', 'pymod2.py'), 'w') as sfile:
                sfile.write(f'_({text2!r})')
            os.mkdir(os.path.join(sdir, 'CVS'))
            with open(os.path.join(sdir, 'CVS', 'pymod3.py'), 'w') as sfile:
                sfile.write(f'_({text3!r})')
            assert_python_ok(self.script, sdir)
            with open('messages.pot') as fp:
                data = fp.read()
            self.assertIn(f'msgid "{text1}"', data)
            self.assertIn(f'msgid "{text2}"', data)
            self.assertNotIn(text3, data) 

def test_abspath_issue3426(self):
        # Check that abspath returns unicode when the arg is unicode
        # with both ASCII and non-ASCII cwds.
        abspath = self.pathmodule.abspath
        for path in ('', 'fuu', 'f\xf9\xf9', '/fuu', 'U:\\'):
            self.assertIsInstance(abspath(path), str)

        unicwd = '\xe7w\xf0'
        try:
            os.fsencode(unicwd)
        except (AttributeError, UnicodeEncodeError):
            # FS encoding is probably ASCII
            pass
        else:
            with support.temp_cwd(unicwd):
                for path in ('', 'fuu', 'f\xf9\xf9', '/fuu', 'U:\\'):
                    self.assertIsInstance(abspath(path), str) 

def test_POT_Creation_Date(self):
        """ Match the date format from xgettext for POT-Creation-Date """
        from datetime import datetime
        with temp_cwd(None) as cwd:
            assert_python_ok(self.script)
            with open('messages.pot') as fp:
                data = fp.read()
            header = self.get_header(data)
            creationDate = header['POT-Creation-Date']

            # peel off the escaped newline at the end of string
            if creationDate.endswith('\\n'):
                creationDate = creationDate[:-len('\\n')]

            # This will raise if the date format does not exactly match.
            datetime.strptime(creationDate, '%Y-%m-%d %H:%M%z') 

def test_header(self):
        """Make sure the required fields are in the header, according to:
           http://www.gnu.org/software/gettext/manual/gettext.html#Header-Entry
        """
        with temp_cwd(None) as cwd:
            assert_python_ok(self.script)
            with open('messages.pot') as fp:
                data = fp.read()
            header = self.get_header(data)

            self.assertIn("Project-Id-Version", header)
            self.assertIn("POT-Creation-Date", header)
            self.assertIn("PO-Revision-Date", header)
            self.assertIn("Last-Translator", header)
            self.assertIn("Language-Team", header)
            self.assertIn("MIME-Version", header)
            self.assertIn("Content-Type", header)
            self.assertIn("Content-Transfer-Encoding", header)
            self.assertIn("Generated-By", header)

            # not clear if these should be required in POT (template) files
            #self.assertIn("Report-Msgid-Bugs-To", header)
            #self.assertIn("Language", header)

            #"Plural-Forms" is optional 

def test_cwd_with_relative_executable(self):
        # Check that Popen looks for executable relative to cwd if executable
        # is relative (and that executable takes precedence over args[0]).
        python_dir, python_base = self._split_python_path()
        rel_python = os.path.join(os.curdir, python_base)
        doesntexist = "somethingyoudonthave"
        with support.temp_cwd() as wrong_dir:
            # Before calling with the correct cwd, confirm that the call fails
            # without cwd and with the wrong cwd.
            self.assertRaises(FileNotFoundError, subprocess.Popen,
                              [doesntexist], executable=rel_python)
            self.assertRaises(FileNotFoundError, subprocess.Popen,
                              [doesntexist], executable=rel_python,
                              cwd=wrong_dir)
            python_dir = self._normalize_cwd(python_dir)
            self._assert_cwd(python_dir, doesntexist, executable=rel_python,
                             cwd=python_dir) 

def main_in_temp_cwd():
    """Run main() in a temporary working directory."""
    if sysconfig.is_python_build():
        try:
            os.mkdir(TEMPDIR)
        except FileExistsError:
            pass

    # Define a writable temp dir that will be used as cwd while running
    # the tests. The name of the dir includes the pid to allow parallel
    # testing (see the -j option).
    test_cwd = 'test_python_{}'.format(os.getpid())
    test_cwd = os.path.join(TEMPDIR, test_cwd)

    # Run the tests in a context manager that temporarily changes the CWD to a
    # temporary and writable directory.  If it's not possible to create or
    # change the CWD, the original CWD will be used.  The original CWD is
    # available from support.SAVEDCWD.
    with support.temp_cwd(test_cwd, quiet=True):
        main() 

def temp_module(name, content='', *, pkg=False):
    conflicts = [n for n in sys.modules if n.partition('.')[0] == name]
    with support.temp_cwd(None) as cwd:
        with uncache(name, *conflicts):
            with support.DirsOnSysPath(cwd):
                invalidate_caches()

                location = os.path.join(cwd, name)
                if pkg:
                    modpath = os.path.join(location, '__init__.py')
                    os.mkdir(name)
                else:
                    modpath = location + '.py'
                    if content is None:
                        # Make sure the module file gets created.
                        content = ''
                if content is not None:
                    # not a namespace package
                    with open(modpath, 'w') as modfile:
                        modfile.write(content)
                yield location 

def setUp(self):
        # Create a simple test environment
        # Note that we're making changes to sys.path
        super(BuildExtTestCase, self).setUp()
        self.tmp_dir = self.mkdtemp()
        self.sys_path = sys.path, sys.path[:]
        sys.path.append(self.tmp_dir)
        import site
        self.old_user_base = site.USER_BASE
        site.USER_BASE = self.mkdtemp()
        from distutils.command import build_ext
        build_ext.USER_BASE = site.USER_BASE

        # bpo-30132: On Windows, a .pdb file may be created in the current
        # working directory. Create a temporary working directory to cleanup
        # everything at the end of the test.
        self.temp_cwd = support.temp_cwd()
        self.temp_cwd.__enter__()
        self.addCleanup(self.temp_cwd.__exit__, None, None, None) 

def main_in_temp_cwd():
    """Run main() in a temporary working directory."""
    if sysconfig.is_python_build():
        try:
            os.mkdir(TEMPDIR)
        except FileExistsError:
            pass

    # Define a writable temp dir that will be used as cwd while running
    # the tests. The name of the dir includes the pid to allow parallel
    # testing (see the -j option).
    test_cwd = 'test_python_{}'.format(os.getpid())
    test_cwd = os.path.join(TEMPDIR, test_cwd)

    # Run the tests in a context manager that temporarily changes the CWD to a
    # temporary and writable directory.  If it's not possible to create or
    # change the CWD, the original CWD will be used.  The original CWD is
    # available from support.SAVEDCWD.
    with support.temp_cwd(test_cwd, quiet=True):
        main() 

def test_relpath(self):
        tester('ntpath.relpath("a")', 'a')
        tester('ntpath.relpath(os.path.abspath("a"))', 'a')
        tester('ntpath.relpath("a/b")', 'a\\b')
        tester('ntpath.relpath("../a/b")', '..\\a\\b')
        with support.temp_cwd(support.TESTFN) as cwd_dir:
            currentdir = os.path.basename(cwd_dir)
            tester('ntpath.relpath("a", "../b")', '..\\'+currentdir+'\\a')
            tester('ntpath.relpath("a/b", "../c")', '..\\'+currentdir+'\\a\\b')
        tester('ntpath.relpath("a", "b/c")', '..\\..\\a')
        tester('ntpath.relpath("c:/foo/bar/bat", "c:/x/y")', '..\\..\\foo\\bar\\bat')
        tester('ntpath.relpath("//conky/mountpoint/a", "//conky/mountpoint/b/c")', '..\\..\\a')
        tester('ntpath.relpath("a", "a")', '.')
        tester('ntpath.relpath("/foo/bar/bat", "/x/y/z")', '..\\..\\..\\foo\\bar\\bat')
        tester('ntpath.relpath("/foo/bar/bat", "/foo/bar")', 'bat')
        tester('ntpath.relpath("/foo/bar/bat", "/")', 'foo\\bar\\bat')
        tester('ntpath.relpath("/", "/foo/bar/bat")', '..\\..\\..')
        tester('ntpath.relpath("/foo/bar/bat", "/x")', '..\\foo\\bar\\bat')
        tester('ntpath.relpath("/x", "/foo/bar/bat")', '..\\..\\..\\x')
        tester('ntpath.relpath("/", "/")', '.')
        tester('ntpath.relpath("/a", "/a")', '.')
        tester('ntpath.relpath("/a/b", "/a/b")', '.')
        tester('ntpath.relpath("c:/foo", "C:/FOO")', '.') 

def test_abspath_issue3426(self):
        # Check that abspath returns unicode when the arg is unicode
        # with both ASCII and non-ASCII cwds.
        abspath = self.pathmodule.abspath
        for path in ('', 'fuu', 'f\xf9\xf9', '/fuu', 'U:\\'):
            self.assertIsInstance(abspath(path), str)

        unicwd = '\xe7w\xf0'
        try:
            os.fsencode(unicwd)
        except (AttributeError, UnicodeEncodeError):
            # FS encoding is probably ASCII
            pass
        else:
            with support.temp_cwd(unicwd):
                for path in ('', 'fuu', 'f\xf9\xf9', '/fuu', 'U:\\'):
                    self.assertIsInstance(abspath(path), str) 

def test_nonascii_abspath(self):
        if (support.TESTFN_UNDECODABLE
        # Mac OS X denies the creation of a directory with an invalid
        # UTF-8 name. Windows allows to create a directory with an
        # arbitrary bytes name, but fails to enter this directory
        # (when the bytes name is used).
        and sys.platform not in ('win32', 'darwin')):
            name = support.TESTFN_UNDECODABLE
        elif support.TESTFN_NONASCII:
            name = support.TESTFN_NONASCII
        else:
            self.skipTest("need support.TESTFN_NONASCII")

        with warnings.catch_warnings():
            warnings.simplefilter("ignore", DeprecationWarning)
            with support.temp_cwd(name):
                self.test_abspath() 

def setUp(self):
        # Create a simple test environment
        # Note that we're making changes to sys.path
        super(BuildExtTestCase, self).setUp()
        self.tmp_dir = self.mkdtemp()
        self.sys_path = sys.path, sys.path[:]
        sys.path.append(self.tmp_dir)
        import site
        self.old_user_base = site.USER_BASE
        site.USER_BASE = self.mkdtemp()
        from distutils.command import build_ext
        build_ext.USER_BASE = site.USER_BASE

        # bpo-30132: On Windows, a .pdb file may be created in the current
        # working directory. Create a temporary working directory to cleanup
        # everything at the end of the test.
        self.temp_cwd = support.temp_cwd()
        self.temp_cwd.__enter__()
        self.addCleanup(self.temp_cwd.__exit__, None, None, None) 

def test_relpath(self):
        tester('ntpath.relpath("a")', 'a')
        tester('ntpath.relpath(os.path.abspath("a"))', 'a')
        tester('ntpath.relpath("a/b")', 'a\\b')
        tester('ntpath.relpath("../a/b")', '..\\a\\b')
        with support.temp_cwd(support.TESTFN) as cwd_dir:
            currentdir = os.path.basename(cwd_dir)
            tester('ntpath.relpath("a", "../b")', '..\\'+currentdir+'\\a')
            tester('ntpath.relpath("a/b", "../c")', '..\\'+currentdir+'\\a\\b')
        tester('ntpath.relpath("a", "b/c")', '..\\..\\a')
        tester('ntpath.relpath("c:/foo/bar/bat", "c:/x/y")', '..\\..\\foo\\bar\\bat')
        tester('ntpath.relpath("//conky/mountpoint/a", "//conky/mountpoint/b/c")', '..\\..\\a')
        tester('ntpath.relpath("a", "a")', '.')
        tester('ntpath.relpath("/foo/bar/bat", "/x/y/z")', '..\\..\\..\\foo\\bar\\bat')
        tester('ntpath.relpath("/foo/bar/bat", "/foo/bar")', 'bat')
        tester('ntpath.relpath("/foo/bar/bat", "/")', 'foo\\bar\\bat')
        tester('ntpath.relpath("/", "/foo/bar/bat")', '..\\..\\..')
        tester('ntpath.relpath("/foo/bar/bat", "/x")', '..\\foo\\bar\\bat')
        tester('ntpath.relpath("/x", "/foo/bar/bat")', '..\\..\\..\\x')
        tester('ntpath.relpath("/", "/")', '.')
        tester('ntpath.relpath("/a", "/a")', '.')
        tester('ntpath.relpath("/a/b", "/a/b")', '.')
        tester('ntpath.relpath("c:/foo", "C:/FOO")', '.') 

def test_cwd_with_relative_executable(self):
        # Check that Popen looks for executable relative to cwd if executable
        # is relative (and that executable takes precedence over args[0]).
        python_dir, python_base = self._split_python_path()
        rel_python = os.path.join(os.curdir, python_base)
        doesntexist = "somethingyoudonthave"
        with support.temp_cwd() as wrong_dir:
            # Before calling with the correct cwd, confirm that the call fails
            # without cwd and with the wrong cwd.
            self.assertRaises(FileNotFoundError, subprocess.Popen,
                              [doesntexist], executable=rel_python)
            self.assertRaises(FileNotFoundError, subprocess.Popen,
                              [doesntexist], executable=rel_python,
                              cwd=wrong_dir)
            python_dir = self._normalize_cwd(python_dir)
            self._assert_cwd(python_dir, doesntexist, executable=rel_python,
                             cwd=python_dir) 

def test_header(self):
        """Make sure the required fields are in the header, according to:
           http://www.gnu.org/software/gettext/manual/gettext.html#Header-Entry
        """
        with temp_cwd(None) as cwd:
            assert_python_ok(self.script)
            with open('messages.pot') as fp:
                data = fp.read()
            header = self.get_header(data)

            self.assertIn("Project-Id-Version", header)
            self.assertIn("POT-Creation-Date", header)
            self.assertIn("PO-Revision-Date", header)
            self.assertIn("Last-Translator", header)
            self.assertIn("Language-Team", header)
            self.assertIn("MIME-Version", header)
            self.assertIn("Content-Type", header)
            self.assertIn("Content-Transfer-Encoding", header)
            self.assertIn("Generated-By", header)

            # not clear if these should be required in POT (template) files
            #self.assertIn("Report-Msgid-Bugs-To", header)
            #self.assertIn("Language", header)

            #"Plural-Forms" is optional 

def main(self, tests=None, **kwargs):
        global TEMPDIR
        self.ns = self.parse_args(kwargs)

        if self.ns.tempdir:
            TEMPDIR = self.ns.tempdir
        elif self.ns.worker_args:
            ns_dict, _ = json.loads(self.ns.worker_args)
            TEMPDIR = ns_dict.get("tempdir") or TEMPDIR

        os.makedirs(TEMPDIR, exist_ok=True)

        # Define a writable temp dir that will be used as cwd while running
        # the tests. The name of the dir includes the pid to allow parallel
        # testing (see the -j option).
        test_cwd = 'test_python_{}'.format(os.getpid())
        test_cwd = os.path.join(TEMPDIR, test_cwd)

        # Run the tests in a context manager that temporarily changes the CWD to a
        # temporary and writable directory.  If it's not possible to create or
        # change the CWD, the original CWD will be used.  The original CWD is
        # available from support.SAVEDCWD.
        with support.temp_cwd(test_cwd, quiet=True):
            self._main(tests, kwargs) 

def test_relpath(self):
        tester('ntpath.relpath("a")', 'a')
        tester('ntpath.relpath(os.path.abspath("a"))', 'a')
        tester('ntpath.relpath("a/b")', 'a\\b')
        tester('ntpath.relpath("../a/b")', '..\\a\\b')
        with support.temp_cwd(support.TESTFN) as cwd_dir:
            currentdir = os.path.basename(cwd_dir)
            tester('ntpath.relpath("a", "../b")', '..\\'+currentdir+'\\a')
            tester('ntpath.relpath("a/b", "../c")', '..\\'+currentdir+'\\a\\b')
        tester('ntpath.relpath("a", "b/c")', '..\\..\\a')
        tester('ntpath.relpath("c:/foo/bar/bat", "c:/x/y")', '..\\..\\foo\\bar\\bat')
        tester('ntpath.relpath("//conky/mountpoint/a", "//conky/mountpoint/b/c")', '..\\..\\a')
        tester('ntpath.relpath("a", "a")', '.')
        tester('ntpath.relpath("/foo/bar/bat", "/x/y/z")', '..\\..\\..\\foo\\bar\\bat')
        tester('ntpath.relpath("/foo/bar/bat", "/foo/bar")', 'bat')
        tester('ntpath.relpath("/foo/bar/bat", "/")', 'foo\\bar\\bat')
        tester('ntpath.relpath("/", "/foo/bar/bat")', '..\\..\\..')
        tester('ntpath.relpath("/foo/bar/bat", "/x")', '..\\foo\\bar\\bat')
        tester('ntpath.relpath("/x", "/foo/bar/bat")', '..\\..\\..\\x')
        tester('ntpath.relpath("/", "/")', '.')
        tester('ntpath.relpath("/a", "/a")', '.')
        tester('ntpath.relpath("/a/b", "/a/b")', '.')
        tester('ntpath.relpath("c:/foo", "C:/FOO")', '.') 

def test_change_cwd__chdir_warning(self):
        """Check the warning message when os.chdir() fails."""
        path = TESTFN + '_does_not_exist'
        with support.check_warnings() as recorder:
            with support.change_cwd(path=path, quiet=True):
                pass
            messages = [str(w.message) for w in recorder.warnings]

        self.assertEqual(len(messages), 1, messages)
        msg = messages[0]
        self.assertTrue(msg.startswith(f'tests may fail, unable to change '
                                       f'the current working directory '
                                       f'to {path!r}: '),
                        msg)

    # Tests for temp_cwd() 

def setUp(self):
        # Create a simple test environment
        # Note that we're making changes to sys.path
        super(BuildExtTestCase, self).setUp()
        self.tmp_dir = self.mkdtemp()
        self.sys_path = sys.path, sys.path[:]
        sys.path.append(self.tmp_dir)
        import site
        self.old_user_base = site.USER_BASE
        site.USER_BASE = self.mkdtemp()
        from distutils.command import build_ext
        build_ext.USER_BASE = site.USER_BASE

        # bpo-30132: On Windows, a .pdb file may be created in the current
        # working directory. Create a temporary working directory to cleanup
        # everything at the end of the test.
        self.temp_cwd = support.temp_cwd()
        self.temp_cwd.__enter__()
        self.addCleanup(self.temp_cwd.__exit__, None, None, None) 

def temp_module(name, content='', *, pkg=False):
    conflicts = [n for n in sys.modules if n.partition('.')[0] == name]
    with support.temp_cwd(None) as cwd:
        with uncache(name, *conflicts):
            with support.DirsOnSysPath(cwd):
                invalidate_caches()

                location = os.path.join(cwd, name)
                if pkg:
                    modpath = os.path.join(location, '__init__.py')
                    os.mkdir(name)
                else:
                    modpath = location + '.py'
                    if content is None:
                        # Make sure the module file gets created.
                        content = ''
                if content is not None:
                    # not a namespace package
                    with open(modpath, 'w') as modfile:
                        modfile.write(content)
                yield location 

def test_nonascii_abspath(self):
        if (support.TESTFN_UNDECODABLE
        # Mac OS X denies the creation of a directory with an invalid
        # UTF-8 name. Windows allows creating a directory with an
        # arbitrary bytes name, but fails to enter this directory
        # (when the bytes name is used).
        and sys.platform not in ('win32', 'darwin')):
            name = support.TESTFN_UNDECODABLE
        elif support.TESTFN_NONASCII:
            name = support.TESTFN_NONASCII
        else:
            self.skipTest("need support.TESTFN_NONASCII")

        with warnings.catch_warnings():
            warnings.simplefilter("ignore", DeprecationWarning)
            with support.temp_cwd(name):
                self.test_abspath() 

def test_cwd_with_relative_executable(self):
        # Check that Popen looks for executable relative to cwd if executable
        # is relative (and that executable takes precedence over args[0]).
        python_dir, python_base = self._split_python_path()
        rel_python = os.path.join(os.curdir, python_base)
        doesntexist = "somethingyoudonthave"
        with support.temp_cwd() as wrong_dir:
            # Before calling with the correct cwd, confirm that the call fails
            # without cwd and with the wrong cwd.
            self.assertRaises(FileNotFoundError, subprocess.Popen,
                              [doesntexist], executable=rel_python)
            self.assertRaises(FileNotFoundError, subprocess.Popen,
                              [doesntexist], executable=rel_python,
                              cwd=wrong_dir)
            python_dir = self._normalize_cwd(python_dir)
            self._assert_cwd(python_dir, doesntexist, executable=rel_python,
                             cwd=python_dir) 

def test_POT_Creation_Date(self):
        """ Match the date format from xgettext for POT-Creation-Date """
        from datetime import datetime
        with temp_cwd(None) as cwd:
            assert_python_ok(self.script)
            with open('messages.pot') as fp:
                data = fp.read()
            header = self.get_header(data)
            creationDate = header['POT-Creation-Date']

            # peel off the escaped newline at the end of string
            if creationDate.endswith('\\n'):
                creationDate = creationDate[:-len('\\n')]

            # This will raise if the date format does not exactly match.
            datetime.strptime(creationDate, '%Y-%m-%d %H:%M%z') 

def test_header(self):
        """Make sure the required fields are in the header, according to:
           http://www.gnu.org/software/gettext/manual/gettext.html#Header-Entry
        """
        with temp_cwd(None) as cwd:
            assert_python_ok(self.script)
            with open('messages.pot') as fp:
                data = fp.read()
            header = self.get_header(data)

            self.assertIn("Project-Id-Version", header)
            self.assertIn("POT-Creation-Date", header)
            self.assertIn("PO-Revision-Date", header)
            self.assertIn("Last-Translator", header)
            self.assertIn("Language-Team", header)
            self.assertIn("MIME-Version", header)
            self.assertIn("Content-Type", header)
            self.assertIn("Content-Transfer-Encoding", header)
            self.assertIn("Generated-By", header)

            # not clear if these should be required in POT (template) files
            #self.assertIn("Report-Msgid-Bugs-To", header)
            #self.assertIn("Language", header)

            #"Plural-Forms" is optional 

def main_in_temp_cwd():
    """Run main() in a temporary working directory."""
    if sysconfig.is_python_build():
        try:
            os.mkdir(TEMPDIR)
        except FileExistsError:
            pass

    # Define a writable temp dir that will be used as cwd while running
    # the tests. The name of the dir includes the pid to allow parallel
    # testing (see the -j option).
    test_cwd = 'test_python_{}'.format(os.getpid())
    test_cwd = os.path.join(TEMPDIR, test_cwd)

    # Run the tests in a context manager that temporarily changes the CWD to a
    # temporary and writable directory.  If it's not possible to create or
    # change the CWD, the original CWD will be used.  The original CWD is
    # available from support.SAVEDCWD.
    with support.temp_cwd(test_cwd, quiet=True):
        main() 

def test_temp_cwd__name_none(self):
        """Test passing None to temp_cwd()."""
        original_cwd = os.getcwd()
        with support.temp_cwd(name=None) as new_cwd:
            self.assertNotEqual(new_cwd, original_cwd)
            self.assertTrue(os.path.isdir(new_cwd))
            self.assertEqual(os.getcwd(), new_cwd)
        self.assertEqual(os.getcwd(), original_cwd) 

def test_temp_cwd(self):
        here = os.getcwd()
        with support.temp_cwd(name=TESTFN):
            self.assertEqual(os.path.basename(os.getcwd()), TESTFN)
        self.assertFalse(os.path.exists(TESTFN))
        self.assertTrue(os.path.basename(os.getcwd()), here) 

def test_cwd_with_relative_arg(self):
        # Check that Popen looks for args[0] relative to cwd if args[0]
        # is relative.
        python_dir, python_base = self._split_python_path()
        rel_python = os.path.join(os.curdir, python_base)
        with support.temp_cwd() as wrong_dir:
            # Before calling with the correct cwd, confirm that the call fails
            # without cwd and with the wrong cwd.
            self.assertRaises(FileNotFoundError, subprocess.Popen,
                              [rel_python])
            self.assertRaises(FileNotFoundError, subprocess.Popen,
                              [rel_python], cwd=wrong_dir)
            python_dir = self._normalize_cwd(python_dir)
            self._assert_cwd(python_dir, rel_python, cwd=python_dir) 

def test_directory(self):
        dirname = os.path.join(support.TESTFN, 'Gr\xfc\xdf-\u66e8\u66e9\u66eb')
        filename = '\xdf-\u66e8\u66e9\u66eb'
        with support.temp_cwd(dirname):
            with open(filename, 'wb') as f:
                f.write((filename + '\n').encode("utf-8"))
            os.access(filename,os.R_OK)
            os.remove(filename)