# 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.support import is_apple, os_helper
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 different
'10_\u1fee\u1ffd',
]
# Apple platforms decompose 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 not is_apple:
filenames.extend([
# Specific code points: NFC(fn), NFD(fn), NFKC(fn) and NFKD(fn) all different
'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 different
'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(os_helper.TESTFN)
except FileExistsError:
pass
self.addCleanup(os_helper.rmtree, os_helper.TESTFN)
files = set()
for name in self.files:
name = os.path.join(os_helper.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 Apple platforms, because they don't 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(is_apple, 'irrelevant test on Apple platforms')
@unittest.skipIf(
support.is_emscripten or support.is_wasi,
"test fails on Emscripten/WASI when host platform is macOS."
)
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 Apple platforms, because they use a normalization different
# than Python NFD normalization: filenames are different even if we use
# Python NFD normalization.
@unittest.skipIf(is_apple, 'irrelevant test on Apple platforms')
def test_listdir(self):
sf0 = set(self.files)
with warnings.catch_warnings():
warnings.simplefilter("ignore", DeprecationWarning)
f1 = os.listdir(os_helper.TESTFN.encode(
sys.getfilesystemencoding()))
f2 = os.listdir(os_helper.TESTFN)
sf2 = set(os.path.join(os_helper.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(os_helper.TESTFN,
'Gr\xfc\xdf-\u66e8\u66e9\u66eb')
filename = '\xdf-\u66e8\u66e9\u66eb'
with os_helper.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'
if __name__ == "__main__":
unittest.main()
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