'Tests the update method of a List of Embedded Documents with
no keywords.'

def test_no_keyword_update(self):

    original = list(self.post1.comments)
    number = self.post1.comments.update()
    self.post1.save()
    self.assertIn(original[0], self.BlogPost.objects(id=self.post1.id)[0].comments)
    self.assertIn(original[1], self.BlogPost.objects(id=self.post1.id)[0].comments)
    self.assertEqual(number, 0)
