test_send_signals.py 文件源码

def test_cancel_in_pre_send(self):
        """Pre-send receiver can cancel the send"""
        @receiver(pre_send, weak=False)
        def cancel_pre_send(sender, message, esp_name, **kwargs):
            raise AnymailCancelSend("whoa there")
        self.addCleanup(pre_send.disconnect, receiver=cancel_pre_send)

        self.message.send()
        self.assertEqual(self.get_send_count(), 0)  # send API not called