'Can\'t edit an image I didn\'t create.'

def test_edit_image_without_permissions(self):

    img = ImageFactory()
    u = UserFactory()
    self.client.login(username=u.username, password='testpass')
    r = post(self.client, 'gallery.edit_media', {'description': 'arrr'}, args=['image', img.id])
    eq_(403, r.status_code)
