1 files changed, 195 insertions, 0 deletions
diff --git a/Lib/test/test_unicode_file_functions.py b/Lib/test/test_unicode_file_functions.py
new file mode 100644
index 0000000000..98c716b4c7
--- /dev/null
+++ b/Lib/test/test_unicode_file_functions.py
@@ -0,0 +1,195 @@
+# 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 os
+import sys
+import unittest
+import warnings
+from unicodedata import normalize
+from test import support
+
+filenames = [
+    '1_abc',
+    '2_ascii',
+    '3_Gr\xfc\xdf-Gott',
+    '4_\u0393\u03b5\u03b9\u03ac-\u03c3\u03b1\u03c2',
+    '5_\u0417\u0434\u0440\u0430\u0432\u0441\u0442\u0432\u0443\u0439\u0442\u0435',
+    '6_\u306b\u307d\u3093',
+    '7_\u05d4\u05e9\u05e7\u05e6\u05e5\u05e1',
+    '8_\u66e8\u66e9\u66eb',
+    '9_\u66e8\u05e9\u3093\u0434\u0393\xdf',
+    # Specific code points: fn, NFC(fn) and NFKC(fn) all differents
+    '10_\u1fee\u1ffd',
+    ]
+
+# Mac OS X decomposes Unicode names, using Normal Form D.
+# http://developer.apple.com/mac/library/qa/qa2001/qa1173.html
+# "However, most volume formats do not follow the exact specification for
+# these normal forms.  For example, HFS Plus uses a variant of Normal Form D
+# in which U+2000 through U+2FFF, U+F900 through U+FAFF, and U+2F800 through
+# U+2FAFF are not decomposed."
+if sys.platform != 'darwin':
+    filenames.extend([
+        # Specific code points: NFC(fn), NFD(fn), NFKC(fn) and NFKD(fn) all differents
+        '11_\u0385\u03d3\u03d4',
+        '12_\u00a8\u0301\u03d2\u0301\u03d2\u0308', # == NFD('\u0385\u03d3\u03d4')
+        '13_\u0020\u0308\u0301\u038e\u03ab',       # == NFKC('\u0385\u03d3\u03d4')
+        '14_\u1e9b\u1fc1\u1fcd\u1fce\u1fcf\u1fdd\u1fde\u1fdf\u1fed',
+
+        # Specific code points: fn, NFC(fn) and NFKC(fn) all differents
+        '15_\u1fee\u1ffd\ufad1',
+        '16_\u2000\u2000\u2000A',
+        '17_\u2001\u2001\u2001A',
+        '18_\u2003\u2003\u2003A',  # == NFC('\u2001\u2001\u2001A')
+        '19_\u0020\u0020\u0020A',  # '\u0020' == ' ' == NFKC('\u2000') ==
+                                   #  NFKC('\u2001') == NFKC('\u2003')
+    ])
+
+
+# Is it Unicode-friendly?
+if not os.path.supports_unicode_filenames:
+    fsencoding = sys.getfilesystemencoding()
+    try:
+        for name in filenames:
+            name.encode(fsencoding)
+    except UnicodeEncodeError:
+        raise unittest.SkipTest("only NT+ and systems with "
+                                "Unicode-friendly filesystem encoding")
+
+
+class UnicodeFileTests(unittest.TestCase):
+    files = set(filenames)
+    normal_form = None
+
+    def setUp(self):
+        try:
+            os.mkdir(support.TESTFN)
+        except FileExistsError:
+            pass
+        self.addCleanup(support.rmtree, support.TESTFN)
+
+        files = set()
+        for name in self.files:
+            name = os.path.join(support.TESTFN, self.norm(name))
+            with open(name, 'wb') as f:
+                f.write((name+'\n').encode("utf-8"))
+            os.stat(name)
+            files.add(name)
+        self.files = files
+
+    def norm(self, s):
+        if self.normal_form:
+            return normalize(self.normal_form, s)
+        return s
+
+    def _apply_failure(self, fn, filename,
+                       expected_exception=FileNotFoundError,
+                       check_filename=True):
+        with self.assertRaises(expected_exception) as c:
+            fn(filename)
+        exc_filename = c.exception.filename
+        if check_filename:
+            self.assertEqual(exc_filename, filename, "Function '%s(%a) failed "
+                             "with bad filename in the exception: %a" %
+                             (fn.__name__, filename, exc_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)
+            self._apply_failure(os.stat, name)
+            self._apply_failure(os.chdir, name)
+            self._apply_failure(os.rmdir, name)
+            self._apply_failure(os.remove, name)
+            self._apply_failure(os.listdir, name)
+
+    if sys.platform == 'win32':
+        # Windows is lunatic. Issue #13366.
+        _listdir_failure = NotADirectoryError, FileNotFoundError
+    else:
+        _listdir_failure = NotADirectoryError
+
+    def test_open(self):
+        for name in self.files:
+            f = open(name, 'wb')
+            f.write((name+'\n').encode("utf-8"))
+            f.close()
+            os.stat(name)
+            self._apply_failure(os.listdir, name, self._listdir_failure)
+
+    # Skip the test on darwin, because darwin does normalize the filename to
+    # NFD (a variant of Unicode NFD form). Normalize the filename to NFC, NFKC,
+    # NFKD in Python is useless, because darwin will normalize it later and so
+    # open(), os.stat(), etc. don't raise any exception.
+    @unittest.skipIf(sys.platform == 'darwin', 'irrelevant test on Mac OS X')
+    def test_normalize(self):
+        files = set(self.files)
+        others = set()
+        for nf in set(['NFC', 'NFD', 'NFKC', 'NFKD']):
+            others |= set(normalize(nf, file) for file in files)
+        others -= files
+        for name in others:
+            self._apply_failure(open, name)
+            self._apply_failure(os.stat, name)
+            self._apply_failure(os.chdir, name)
+            self._apply_failure(os.rmdir, name)
+            self._apply_failure(os.remove, name)
+            self._apply_failure(os.listdir, name)
+
+    # Skip the test on darwin, because darwin uses a normalization different
+    # than Python NFD normalization: filenames are different even if we use
+    # Python NFD normalization.
+    @unittest.skipIf(sys.platform == 'darwin', 'irrelevant test on Mac OS X')
+    def test_listdir(self):
+        sf0 = set(self.files)
+        with warnings.catch_warnings():
+            warnings.simplefilter("ignore", DeprecationWarning)
+            f1 = os.listdir(support.TESTFN.encode(sys.getfilesystemencoding()))
+        f2 = os.listdir(support.TESTFN)
+        sf2 = set(os.path.join(support.TESTFN, f) for f in f2)
+        self.assertEqual(sf0, sf2, "%a != %a" % (sf0, sf2))
+        self.assertEqual(len(f1), len(f2))
+
+    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(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)
+
+
+class UnicodeNFCFileTests(UnicodeFileTests):
+    normal_form = 'NFC'
+
+
+class UnicodeNFDFileTests(UnicodeFileTests):
+    normal_form = 'NFD'
+
+
+class UnicodeNFKCFileTests(UnicodeFileTests):
+    normal_form = 'NFKC'
+
+
+class UnicodeNFKDFileTests(UnicodeFileTests):
+    normal_form = 'NFKD'
+
+
+def test_main():
+    support.run_unittest(
+        UnicodeFileTests,
+        UnicodeNFCFileTests,
+        UnicodeNFDFileTests,
+        UnicodeNFKCFileTests,
+        UnicodeNFKDFileTests,
+    )
+
+
+if __name__ == "__main__":
+    test_main()