def METHOD_NAME(self):
    perm = FieldPermission.objects.filter(role__name='commander',
                                          model_name='Tree',
                                          field_name='diameter')
    self.assertEqual(perm.count(), 1)
    perm.update(permission_level=0)
    self.instance.search_config = {
        'Tree': [{'identifier': 'tree.diameter'}],
    }
    self.assert_search_absent('Tree')