'Assert taking a tag off a question works.'

def test_remove_async_applied_tag(self):

    self.question.tags.add('green')
    self.question.tags.add('colorless')
    response = self.client.post(_remove_async_tag_url(self.question.id), data={'name': 'colorless'}, HTTP_X_REQUESTED_WITH='XMLHttpRequest')
    eq_(response.status_code, 200)
    tags = Question.objects.get(pk=self.question.id).tags.all()
    eq_([t.name for t in tags], ['green'])
