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Thomas De Schampheleire
tests: use test_context for tests needing internationalization (bis)

Commit 8e3137064ab6 already introduced the use of test_context to cover
internationalization in the test suite, instead of setting it up globally.

When making changes related to formencode internationalization, a new batch
of internationalization errors popped up and a commit was made to fix them.
However, after some later refactoring, it looked as if the commit was not
needed anymore.

In Turbogears context, it was indeed not necessary as long as we still had
some places that used the dummy formencode.api._ rather than a real version
of _ (ugettext).
After cleaning up that forgotten import, the test internationalization
errors popped up again. Hence, we need to reapply the earlier commit (with
some changes).
.. _debugging:

===================
Debugging Kallithea
===================

If you encounter problems with Kallithea, here are some instructions
on how to debug them.

.. note:: First make sure you're using the latest version available.


Enable detailed debug
---------------------

Kallithea uses the standard Python ``logging`` module to log its output.
By default only loggers with ``INFO`` level are displayed. To enable full output
change ``level = DEBUG`` for all logging handlers in the currently used .ini file.
This change will allow you to see much more detailed output in the log file or
console. This generally helps a lot to track issues.


Enable interactive debug mode
-----------------------------

To enable interactive debug mode simply comment out ``set debug = false`` in
the .ini file. This will trigger an interactive debugger each time
there is an error in the browser, or send a http link if an error occurred in the backend. This
is a great tool for fast debugging as you get a handy Python console right
in the web view.

.. warning:: NEVER ENABLE THIS ON PRODUCTION! The interactive console
             can be a serious security threat to your system.