[Twisted-Python] Stopping Reactor in UnitTest Callback

[Itamar Turner-Trauring]

On Sat, Jan 12, 2013 at 9:00 AM, Fabian Rothfuchs <
fabian.rothfuchs at googlemail.com> wrote:

> I'm in the dilemma of using both - Django and Twisted.
> My goal is to have Django initialising the test (python manage.py test
> <appname>), instead of trial, as it will setup the whole test environment
> (I.e. Creates a db copy, allows per-model testing, follows certain
> conventions, etc).
>
> As to that I'm trying to find a way how to start/stop the reactor from the
> test, as trial is not executed.
> Do you have an idea or an approach how this could be realised?
>

The functionality to start/stop the reactor when a test returns a Deferred
is part of twisted.trial.unittest.TestCase, which subclasses Python's
unittest.TestCase. As a result you don't need to use the trial command-line
tool, you can use any Python test runner that knows about Python's
TestCase; just make sure to subclass twisted.trial.unittest.TestCase, and
your test will support running the reactor for you when you return a
Deferred.

Or, if possible, you can avoid using the reactor at all; some approaches
(as mentioned by Jean-Paul) are described in the trial documentation:
http://twistedmatrix.com/documents/current/core/howto/trial.html

-- 
Itamar Turner-Trauring, Future Foundries LLC
http://futurefoundries.com/ — Twisted consulting, training and support.
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