def __init__(self, notify_async: bool = None, *args, **kwargs) -> None:
"""
:param notify_async: If True, enable ansynchronous (and reliable) notifications. If False, disable them.
If None, use external configuration to determine whether to enable them.
"""
super().__init__(*args, **kwargs)
if notify_async is None:
notify_async = Config.notification_is_async()
self.notifier = Notifier.from_config() if notify_async else None
def test_notifier_from_config(self):
with mock.patch.dict(os.environ,
DSS_NOTIFY_DELAYS="",
DSS_NOTIFY_WORKERS="",
DSS_NOTIFY_ATTEMPTS=""):
self.assertFalse(Config.notification_is_async())
self.assertEqual(Config.notification_attempts(), 0)
self.assertEqual(Config.notification_delays(), [])
with mock.patch.dict(os.environ, DSS_NOTIFY_DELAYS="0"):
self.assertTrue(Config.notification_is_async())
self.assertEqual(Config.notification_attempts(), 1)
self.assertEqual(Config.notification_delays(), [0])
with mock.patch.dict(os.environ, DSS_NOTIFY_ATTEMPTS="0"):
self.assertEqual(Config.notification_attempts(), 0)
self.assertFalse(Config.notification_is_async())
with mock.patch.dict(os.environ,
DSS_NOTIFY_DELAYS="3 2 1 .5",
DSS_NOTIFY_WORKERS="7"):
notifier = Notifier.from_config()
self.assertEqual([3.0, 2.0, 1.0, .5], notifier._delays)
self.assertEqual(7, notifier._num_workers)
self.assertTrue(Config.notification_is_async())
self.assertEqual(Config.notification_attempts(), 4)
