'Verify the done queryset.'

def test_done(self):

    q = QuestionFactory()
    eq_(0, Question.objects.done().count())
    a = AnswerFactory(question=q)
    eq_(0, Question.objects.done().count())
    q.solution = a
    q.save()
    eq_(1, Question.objects.done().count())
    QuestionFactory(is_locked=True)
    eq_(2, Question.objects.done().count())
