def METHOD_NAME(self):
    sms_client = self.create_client_from_connection_string()
    with pytest.raises(HttpResponseError) as ex:
        sms_responses = sms_client.send(
            from_=self.phone_number,
            to=["Ad155500000000000"],
            message="Hello World via SMS")
    assert str(ex.value.status_code == "400")