Lib/test/test_pep277.py

   1 # Test the Unicode versions of normal file functions
   2 # open, os.open, os.stat. os.listdir, os.rename, os.remove, os.mkdir, os.chdir, os.rmdir
   3 import sys, os, unittest
   4 from test import test_support
   5 if not os.path.supports_unicode_filenames:
   6     raise unittest.SkipTest, "test works only on NT+"
   7
   8 filenames = [
   9     'abc',
  10     u'ascii',
  11     u'Gr\xfc\xdf-Gott',
  12     u'\u0393\u03b5\u03b9\u03ac-\u03c3\u03b1\u03c2',
  13     u'\u0417\u0434\u0440\u0430\u0432\u0441\u0442\u0432\u0443\u0439\u0442\u0435',
  14     u'\u306b\u307d\u3093',
  15     u'\u05d4\u05e9\u05e7\u05e6\u05e5\u05e1',
  16     u'\u66e8\u66e9\u66eb',
  17     u'\u66e8\u05e9\u3093\u0434\u0393\xdf',
  18     ]
  19
  20 # Destroy directory dirname and all files under it, to one level.
  21 def deltree(dirname):
  22     # Don't hide legitimate errors:  if one of these suckers exists, it's
  23     # an error if we can't remove it.
  24     if os.path.exists(dirname):
  25         # must pass unicode to os.listdir() so we get back unicode results.
  26         for fname in os.listdir(unicode(dirname)):
  27             os.unlink(os.path.join(dirname, fname))
  28         os.rmdir(dirname)
  29
  30 class UnicodeFileTests(unittest.TestCase):
  31     files = [os.path.join(test_support.TESTFN, f) for f in filenames]
  32
  33     def setUp(self):
  34         try:
  35             os.mkdir(test_support.TESTFN)
  36         except OSError:
  37             pass
  38         for name in self.files:
  39             f = open(name, 'w')
  40             f.write((name+'\n').encode("utf-8"))
  41             f.close()
  42             os.stat(name)
  43
  44     def tearDown(self):
  45         deltree(test_support.TESTFN)
  46
  47     def _apply_failure(self, fn, filename, expected_exception,
  48                        check_fn_in_exception = True):
  49         try:
  50             fn(filename)
  51             raise test_support.TestFailed("Expected to fail calling '%s(%r)'"
  52                              % (fn.__name__, filename))
  53         except expected_exception, details:
  54             if check_fn_in_exception and details.filename != filename:
  55                 raise test_support.TestFailed("Function '%s(%r) failed with "
  56                                  "bad filename in the exception: %r"
  57                                  % (fn.__name__, filename,
  58                                     details.filename))
  59
  60     def test_failures(self):
  61         # Pass non-existing Unicode filenames all over the place.
  62         for name in self.files:
  63             name = "not_" + name
  64             self._apply_failure(open, name, IOError)
  65             self._apply_failure(os.stat, name, OSError)
  66             self._apply_failure(os.chdir, name, OSError)
  67             self._apply_failure(os.rmdir, name, OSError)
  68             self._apply_failure(os.remove, name, OSError)
  69             # listdir may append a wildcard to the filename, so dont check
  70             self._apply_failure(os.listdir, name, OSError, False)
  71
  72     def test_open(self):
  73         for name in self.files:
  74             f = open(name, 'w')
  75             f.write((name+'\n').encode("utf-8"))
  76             f.close()
  77             os.stat(name)
  78
  79     def test_listdir(self):
  80         f1 = os.listdir(test_support.TESTFN)
  81         f2 = os.listdir(unicode(test_support.TESTFN,
  82                                 sys.getfilesystemencoding()))
  83         sf2 = set(u"\\".join((unicode(test_support.TESTFN), f))
  84                   for f in f2)
  85         self.assertEqual(len(f1), len(self.files))
  86         self.assertEqual(sf2, set(self.files))
  87
  88     def test_rename(self):
  89         for name in self.files:
  90             os.rename(name,"tmp")
  91             os.rename("tmp",name)
  92
  93     def test_directory(self):
  94         dirname = os.path.join(test_support.TESTFN,u'Gr\xfc\xdf-\u66e8\u66e9\u66eb')
  95         filename = u'\xdf-\u66e8\u66e9\u66eb'
  96         oldwd = os.getcwd()
  97         os.mkdir(dirname)
  98         os.chdir(dirname)
  99         f = open(filename, 'w')
 100         f.write((filename + '\n').encode("utf-8"))
 101         f.close()
 102         os.access(filename,os.R_OK)
 103         os.remove(filename)
 104         os.chdir(oldwd)
 105         os.rmdir(dirname)
 106
 107 def test_main():
 108     try:
 109         test_support.run_unittest(UnicodeFileTests)
 110     finally:
 111         deltree(test_support.TESTFN)
 112
 113 if __name__ == "__main__":
 114     test_main()