cpython/Lib/test/test_unicode_file_functions.py
Christian Heimes 32ac98e899
gh-95853: Add script to automate WASM build (GH-95828)
Automate WASM build with a new Python script. The script provides
several build profiles with configure flags for Emscripten flavors
and WASI. The script can detect and use Emscripten SDK and WASI SDK from
default locations or env vars.

``configure`` now detects Node arguments and creates HOSTRUNNER
arguments for Node 16. It also sets correct arguments for
``wasm64-emscripten``.

Co-authored-by: Brett Cannon <brett@python.org>
2022-08-13 21:56:08 +02:00

194 lines
6.9 KiB
Python

# 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 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',
]
# 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 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 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')
@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 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(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()