# Test the Unicode versions of normal file functions

# open, os.open, os.stat. os.listdir, os.rename, os.remove, os.mkdir, os.chdir, os.rmdir

import sys, os, unittest

from test import test_support

if not os.path.supports_unicode_filenames:

    raise test_support.TestSkipped, "test works only on NT+"

filenames = [

    'abc',

    u'ascii',

    u'Gr\xfc\xdf-Gott',

    u'\u0393\u03b5\u03b9\u03ac-\u03c3\u03b1\u03c2',

    u'\u0417\u0434\u0440\u0430\u0432\u0441\u0442\u0432\u0443\u0439\u0442\u0435',

    u'\u306b\u307d\u3093',

    u'\u05d4\u05e9\u05e7\u05e6\u05e5\u05e1',

    u'\u66e8\u66e9\u66eb',

    u'\u66e8\u05e9\u3093\u0434\u0393\xdf',

    ]

# Destroy directory dirname and all files under it, to one level.

def deltree(dirname):

    # Don't hide legitimate errors:  if one of these suckers exists, it's

    # an error if we can't remove it.

    if os.path.exists(dirname):

        # must pass unicode to os.listdir() so we get back unicode results.

        for fname in os.listdir(unicode(dirname)):

            os.unlink(os.path.join(dirname, fname))

        os.rmdir(dirname)

class UnicodeFileTests(unittest.TestCase):

    files = [os.path.join(test_support.TESTFN, f) for f in filenames]

    def setUp(self):

        try:

            os.mkdir(test_support.TESTFN)

        except OSError:

            pass

        for name in self.files:

            f = open(name, 'w')

            f.write((name+'\n').encode("utf-8"))

            f.close()

            os.stat(name)

    def tearDown(self):

        deltree(test_support.TESTFN)

    def _apply_failure(self, fn, filename, expected_exception,

                       check_fn_in_exception = True):

        try:

            fn(filename)

            raise test_support.TestFailed("Expected to fail calling '%s(%r)'"

                             % (fn.__name__, filename))

        except expected_exception, details:

            if check_fn_in_exception and details.filename != filename:

                raise test_support.TestFailed("Function '%s(%r) failed with "

                                 "bad filename in the exception: %r"

                                 % (fn.__name__, filename,

                                    details.filename))

    def test_failures(self):

        # Pass non-existing Unicode filenames all over the place.

        for name in self.files:

            name = "not_" + name

            self._apply_failure(open, name, IOError)

            self._apply_failure(os.stat, name, OSError)

            self._apply_failure(os.chdir, name, OSError)

            self._apply_failure(os.rmdir, name, OSError)

            self._apply_failure(os.remove, name, OSError)

            # listdir may append a wildcard to the filename, so dont check

            self._apply_failure(os.listdir, name, OSError, False)

    def test_open(self):

        for name in self.files:

            f = open(name, 'w')

            f.write((name+'\n').encode("utf-8"))

            f.close()

            os.stat(name)

    def test_listdir(self):

        f1 = os.listdir(test_support.TESTFN)

        f2 = os.listdir(unicode(test_support.TESTFN,

                                sys.getfilesystemencoding()))

        sf2 = set(u"\\".join((unicode(test_support.TESTFN), f))

                  for f in f2)

        self.failUnlessEqual(len(f1), len(self.files))

        self.failUnlessEqual(sf2, set(self.files))

    def test_rename(self):

        for name in self.files:

            os.rename(name,"tmp")

            os.rename("tmp",name)

    def test_directory(self):

        dirname = os.path.join(test_support.TESTFN,u'Gr\xfc\xdf-\u66e8\u66e9\u66eb')

        filename = u'\xdf-\u66e8\u66e9\u66eb'

        oldwd = os.getcwd()

        os.mkdir(dirname)

        os.chdir(dirname)

        f = open(filename, 'w')

        f.write((filename + '\n').encode("utf-8"))

        f.close()

        os.access(filename,os.R_OK)

        os.remove(filename)

        os.chdir(oldwd)

        os.rmdir(dirname)

def test_main():

    try:

        test_support.run_unittest(UnicodeFileTests)

    finally:

        deltree(test_support.TESTFN)

if __name__ == "__main__":

    test_main()