Merged revisions 84506 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r84506 | antoine.pitrou | 2010-09-04 22:53:29 +0200 (sam., 04 sept. 2010) | 5 lines

  Issue #8734: Avoid crash in msvcrt.get_osfhandle() when an invalid file
  descriptor is provided.  Patch by Pascal Chambon.
........
diff --git a/Lib/test/test_fileio.py b/Lib/test/test_fileio.py
index f89c542..2f299dc 100644
--- a/Lib/test/test_fileio.py
+++ b/Lib/test/test_fileio.py
@@ -313,6 +313,9 @@
     def testInvalidFd(self):
         self.assertRaises(ValueError, _FileIO, -10)
         self.assertRaises(OSError, _FileIO, make_bad_fd())
+        if sys.platform == 'win32':
+            import msvcrt
+            self.assertRaises(IOError, msvcrt.get_osfhandle, make_bad_fd())
 
     def testBadModeArgument(self):
         # verify that we get a sensible error message for bad mode argument