def test_acknowledge_without_trigger_summary_data(self) -> None:
        expected_message = 'Incident [1](https://zulip-test.pagerduty.com/incidents/PO1XIJ5) acknowledged by [armooo](https://zulip-test.pagerduty.com/users/POBCFRJ):\n\n``` quote\n\n```'
        self.send_and_test_stream_message('acknowledge_without_trigger_summary_data',
                                          "Incident 1", expected_message)