'POSTs a form that contains validation errors.'

def test_create_article_with_errors(self):

    view_url = '/views/create_update/create/article/'
    num_articles = Article.objects.count()
    response = self.client.post(view_url, {'title': 'My    First    Article'})
    self.assertFormError(response, 'form', 'slug', [u'This    field    is    required.'])
    self.assertTemplateUsed(response, 'views/article_form.html')
    self.assertEqual(num_articles, Article.objects.count(), 'Number    of    Articles    should    not    have    changed.')
