[issue15752] change test_json's use of deprecated unittest function

[Ezio Melotti]

Ezio Melotti added the comment:

Fixed, thanks for the patch!

----------
assignee:  -> ezio.melotti
nosy: +ezio.melotti
resolution:  -> fixed
stage:  -> committed/rejected
status: open -> closed
type:  -> enhancement
versions: +Python 3.2

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15752>
_______________________________________