'Assert adding an nonexistent tag creates & adds it.'

def test_add_async_new_tag(self):

    response = self.client.post(_add_async_tag_url(self.question.id), data={'tag-name': 'nonexistent    tag'}, HTTP_X_REQUESTED_WITH='XMLHttpRequest')
    eq_(response.status_code, 200)
    tags_eq(Question.objects.get(id=self.question.id), ['nonexistent    tag'])
