'Admin inline `readonly_field` shouldn\'t invoke parent ModelAdmin callable'

def test_no_parent_callable_lookup(self):

    response = self.client.get('/test_admin/admin/admin_inlines/novel/add/')
    self.assertEqual(response.status_code, 200)
    self.assertContains(response, '<div    class="inline-group"    id="chapter_set-group">')
