141 lines
5.7 KiB
Python
141 lines
5.7 KiB
Python
# Test some Unicode file name semantics
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# We don't test many operations on files other than
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# that their names can be used with Unicode characters.
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import os, glob, time, shutil
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import unicodedata
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import unittest
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from test.support import (run_unittest, rmtree, change_cwd,
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TESTFN_ENCODING, TESTFN_UNICODE, TESTFN_UNENCODABLE, create_empty_file)
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if not os.path.supports_unicode_filenames:
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try:
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TESTFN_UNICODE.encode(TESTFN_ENCODING)
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except (UnicodeError, TypeError):
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# Either the file system encoding is None, or the file name
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# cannot be encoded in the file system encoding.
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raise unittest.SkipTest("No Unicode filesystem semantics on this platform.")
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def remove_if_exists(filename):
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if os.path.exists(filename):
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os.unlink(filename)
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class TestUnicodeFiles(unittest.TestCase):
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# The 'do_' functions are the actual tests. They generally assume the
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# file already exists etc.
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# Do all the tests we can given only a single filename. The file should
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# exist.
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def _do_single(self, filename):
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self.assertTrue(os.path.exists(filename))
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self.assertTrue(os.path.isfile(filename))
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self.assertTrue(os.access(filename, os.R_OK))
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self.assertTrue(os.path.exists(os.path.abspath(filename)))
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self.assertTrue(os.path.isfile(os.path.abspath(filename)))
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self.assertTrue(os.access(os.path.abspath(filename), os.R_OK))
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os.chmod(filename, 0o777)
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os.utime(filename, None)
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os.utime(filename, (time.time(), time.time()))
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# Copy/rename etc tests using the same filename
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self._do_copyish(filename, filename)
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# Filename should appear in glob output
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self.assertTrue(
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os.path.abspath(filename)==os.path.abspath(glob.glob(glob.escape(filename))[0]))
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# basename should appear in listdir.
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path, base = os.path.split(os.path.abspath(filename))
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file_list = os.listdir(path)
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# Normalize the unicode strings, as round-tripping the name via the OS
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# may return a different (but equivalent) value.
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base = unicodedata.normalize("NFD", base)
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file_list = [unicodedata.normalize("NFD", f) for f in file_list]
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self.assertIn(base, file_list)
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# Tests that copy, move, etc one file to another.
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def _do_copyish(self, filename1, filename2):
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# Should be able to rename the file using either name.
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self.assertTrue(os.path.isfile(filename1)) # must exist.
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os.rename(filename1, filename2 + ".new")
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self.assertFalse(os.path.isfile(filename2))
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self.assertTrue(os.path.isfile(filename1 + '.new'))
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os.rename(filename1 + ".new", filename2)
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self.assertFalse(os.path.isfile(filename1 + '.new'))
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self.assertTrue(os.path.isfile(filename2))
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shutil.copy(filename1, filename2 + ".new")
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os.unlink(filename1 + ".new") # remove using equiv name.
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# And a couple of moves, one using each name.
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shutil.move(filename1, filename2 + ".new")
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self.assertFalse(os.path.exists(filename2))
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self.assertTrue(os.path.exists(filename1 + '.new'))
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shutil.move(filename1 + ".new", filename2)
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self.assertFalse(os.path.exists(filename2 + '.new'))
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self.assertTrue(os.path.exists(filename1))
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# Note - due to the implementation of shutil.move,
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# it tries a rename first. This only fails on Windows when on
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# different file systems - and this test can't ensure that.
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# So we test the shutil.copy2 function, which is the thing most
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# likely to fail.
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shutil.copy2(filename1, filename2 + ".new")
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self.assertTrue(os.path.isfile(filename1 + '.new'))
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os.unlink(filename1 + ".new")
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self.assertFalse(os.path.exists(filename2 + '.new'))
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def _do_directory(self, make_name, chdir_name):
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if os.path.isdir(make_name):
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rmtree(make_name)
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os.mkdir(make_name)
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try:
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with change_cwd(chdir_name):
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cwd_result = os.getcwd()
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name_result = make_name
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cwd_result = unicodedata.normalize("NFD", cwd_result)
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name_result = unicodedata.normalize("NFD", name_result)
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self.assertEqual(os.path.basename(cwd_result),name_result)
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finally:
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os.rmdir(make_name)
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# The '_test' functions 'entry points with params' - ie, what the
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# top-level 'test' functions would be if they could take params
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def _test_single(self, filename):
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remove_if_exists(filename)
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create_empty_file(filename)
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try:
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self._do_single(filename)
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finally:
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os.unlink(filename)
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self.assertTrue(not os.path.exists(filename))
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# and again with os.open.
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f = os.open(filename, os.O_CREAT)
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os.close(f)
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try:
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self._do_single(filename)
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finally:
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os.unlink(filename)
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# The 'test' functions are unittest entry points, and simply call our
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# _test functions with each of the filename combinations we wish to test
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def test_single_files(self):
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self._test_single(TESTFN_UNICODE)
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if TESTFN_UNENCODABLE is not None:
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self._test_single(TESTFN_UNENCODABLE)
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def test_directories(self):
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# For all 'equivalent' combinations:
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# Make dir with encoded, chdir with unicode, checkdir with encoded
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# (or unicode/encoded/unicode, etc
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ext = ".dir"
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self._do_directory(TESTFN_UNICODE+ext, TESTFN_UNICODE+ext)
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# Our directory name that can't use a non-unicode name.
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if TESTFN_UNENCODABLE is not None:
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self._do_directory(TESTFN_UNENCODABLE+ext,
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TESTFN_UNENCODABLE+ext)
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def test_main():
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run_unittest(__name__)
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if __name__ == "__main__":
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test_main()
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