def METHOD_NAME(self):
    feed = self.force_feed(sync=True)
    self.set_permissions("probes.change_feed")
    response = self.put_data(reverse("probes_api:feed", args=(feed.pk,)), FEED)
    self.assertEqual(response.status_code, 200)
    self.assertEqual(response.data, {'result': 'No changes.'})