'Saving an existing post should update the updated date.'

def test_save_old_post_no_timestamps(self):

    created = datetime(2010, 5, 4, 14, 4, 22)
    updated = datetime(2010, 5, 4, 14, 4, 31)
    p = PostFactory(thread=self.thread, created=created, updated=updated)
    eq_(updated, p.updated)
    p.content = 'baz'
    p.updated_by = self.user
    p.save()
    now = datetime.now()
    self.assertDateTimeAlmostEqual(now, p.updated, self.delta)
    eq_(created, p.created)
