[issue1949] test_ntpath.py converted to unittest

[Pavel Vinogradov]

Pavel Vinogradov added the comment:

This patch also looks good for me. It convert all test cases and run
successfully on latest python trunk (on Linux).

----------
nosy: +pavel.vinogradov

__________________________________
Tracker <report at bugs.python.org>
<http://bugs.python.org/issue1949>
__________________________________