def test_layer_renamed(self): layer = Layer(self.layer, timeline=mock.Mock()) self.assertIsNone(layer._name_if_set()) with self.app.action_log.started("change layer name"): layer.set_name("Beautiful name") self.assertEqual(layer._name_if_set(), "Beautiful name") self.action_log.undo() self.assertIsNone(layer._name_if_set()) self.action_log.redo() self.assertEqual(layer._name_if_set(), "Beautiful name")