201 lines
8.4 KiB
Python
201 lines
8.4 KiB
Python
# Test some Unicode file name semantics
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# We dont 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.test_support import run_unittest, TestSkipped, TESTFN_UNICODE
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from test.test_support import TESTFN_ENCODING, TESTFN_UNICODE_UNENCODEABLE
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try:
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TESTFN_ENCODED = 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 TestSkipped("No Unicode filesystem semantics on this platform.")
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if TESTFN_ENCODED.decode(TESTFN_ENCODING) != TESTFN_UNICODE:
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# The file system encoding does not support Latin-1
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# (which test_support assumes), so try the file system
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# encoding instead.
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import sys
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try:
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TESTFN_UNICODE = unicode("@test-\xe0\xf2", sys.getfilesystemencoding())
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TESTFN_ENCODED = TESTFN_UNICODE.encode(TESTFN_ENCODING)
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if '?' in TESTFN_ENCODED:
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# MBCS will not report the error properly
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raise UnicodeError, "mbcs encoding problem"
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except (UnicodeError, TypeError):
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raise TestSkipped("Cannot find a suiteable filename.")
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if TESTFN_ENCODED.decode(TESTFN_ENCODING) != TESTFN_UNICODE:
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raise TestSkipped("Cannot find a suitable filename.")
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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.failUnless(os.path.exists(filename))
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self.failUnless(os.path.isfile(filename))
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self.failUnless(os.access(filename, os.R_OK))
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self.failUnless(os.path.exists(os.path.abspath(filename)))
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self.failUnless(os.path.isfile(os.path.abspath(filename)))
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self.failUnless(os.access(os.path.abspath(filename), os.R_OK))
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os.chmod(filename, 0777)
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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.failUnless(
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os.path.abspath(filename)==os.path.abspath(glob.glob(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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if isinstance(base, str):
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base = base.decode(TESTFN_ENCODING)
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file_list = os.listdir(path)
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# listdir() with a unicode arg may or may not return Unicode
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# objects, depending on the platform.
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if file_list and isinstance(file_list[0], str):
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file_list = [f.decode(TESTFN_ENCODING) for f in file_list]
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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.failUnless(base in file_list)
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# Do as many "equivalancy' tests as we can - ie, check that although we
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# have different types for the filename, they refer to the same file.
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def _do_equivalent(self, filename1, filename2):
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# Note we only check "filename1 against filename2" - we don't bother
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# checking "filename2 against 1", as we assume we are called again with
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# the args reversed.
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self.failUnless(type(filename1)!=type(filename2),
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"No point checking equivalent filenames of the same type")
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# stat and lstat should return the same results.
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self.failUnlessEqual(os.stat(filename1),
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os.stat(filename2))
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self.failUnlessEqual(os.lstat(filename1),
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os.lstat(filename2))
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# Copy/rename etc tests using equivalent filename
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self._do_copyish(filename1, filename2)
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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.failUnless(os.path.isfile(filename1)) # must exist.
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os.rename(filename1, filename2 + ".new")
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self.failUnless(os.path.isfile(filename1+".new"))
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os.rename(filename1 + ".new", filename2)
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self.failUnless(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.failUnless(not os.path.exists(filename2))
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shutil.move(filename1 + ".new", filename2)
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self.failUnless(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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os.unlink(filename1 + ".new")
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def _do_directory(self, make_name, chdir_name, encoded):
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cwd = os.getcwd()
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if os.path.isdir(make_name):
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os.rmdir(make_name)
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os.mkdir(make_name)
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try:
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os.chdir(chdir_name)
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try:
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if not encoded:
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cwd_result = os.getcwdu()
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name_result = make_name
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else:
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cwd_result = os.getcwd().decode(TESTFN_ENCODING)
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name_result = make_name.decode(TESTFN_ENCODING)
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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.failUnlessEqual(os.path.basename(cwd_result),name_result)
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finally:
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os.chdir(cwd)
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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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f = file(filename, "w")
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f.close()
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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.failUnless(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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def _test_equivalent(self, filename1, filename2):
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remove_if_exists(filename1)
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self.failUnless(not os.path.exists(filename2))
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f = file(filename1, "w")
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f.close()
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try:
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self._do_equivalent(filename1, filename2)
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finally:
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os.unlink(filename1)
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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_ENCODED)
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self._test_single(TESTFN_UNICODE)
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if TESTFN_UNICODE_UNENCODEABLE is not None:
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self._test_single(TESTFN_UNICODE_UNENCODEABLE)
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def test_equivalent_files(self):
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self._test_equivalent(TESTFN_ENCODED, TESTFN_UNICODE)
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self._test_equivalent(TESTFN_UNICODE, TESTFN_ENCODED)
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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_ENCODED+ext, TESTFN_ENCODED+ext, True)
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self._do_directory(TESTFN_ENCODED+ext, TESTFN_UNICODE+ext, True)
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self._do_directory(TESTFN_UNICODE+ext, TESTFN_ENCODED+ext, False)
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self._do_directory(TESTFN_UNICODE+ext, TESTFN_UNICODE+ext, False)
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# Our directory name that can't use a non-unicode name.
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if TESTFN_UNICODE_UNENCODEABLE is not None:
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self._do_directory(TESTFN_UNICODE_UNENCODEABLE+ext,
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TESTFN_UNICODE_UNENCODEABLE+ext,
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False)
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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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