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test_unicode_file_functions.py
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# 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 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(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' if __name__ == "__main__": unittest.main()