test_signal_handlers.py 文件源码

def test_delete_object_is_deleted(self):
        pre_delete.disconnect(pre_delete_handler, dispatch_uid='chemtrails.signals.handlers.pre_delete_handler')
        pre_delete.connect(pre_delete_handler, dispatch_uid='pre_delete_handler.test')
        try:
            book = BookFixture(Book).create_one()
            klass = get_node_class_for_model(Book)
            pk = book.pk
            try:
                book.delete()
                klass.nodes.get(pk=pk)
                self.fail('Did not raise when trying to get non-existent book node.')
            except klass.DoesNotExist as e:
                self.assertEqual(str(e), "{'pk': %d}" % pk)
        finally:
            pre_delete.connect(pre_delete_handler, dispatch_uid='chemtrails.signals.handlers.pre_delete_handler')
            pre_delete.disconnect(pre_delete_handler, dispatch_uid='pre_delete_handler.test')