def test_add_callback_append(self):
callback = lambda: None
config = ConfigurationWithCallbacks()
config.register_callback("foo", callback)
self.assertEqual([callback], config.callbacks["foo"])
config.register_callback("foo", callback, append=True)
self.assertEqual([callback, callback], config.callbacks["foo"])
def test_clear_callbacks(self):
callback = lambda *_: None
config = ConfigurationWithCallbacks()
config.register_callback("foo", callback)
config["foo"] = True
config.clear(callbacks=True)
self.assertEqual(config, {})
self.assertEqual(config.callbacks, {})
def test_callback_on_change(self):
results = []
def callback(change_type, key, value, old_value):
results.append((change_type, key, value))
config = ConfigurationWithCallbacks()
config.register_callback("foo", callback)
config["foo"] = True
config["foo"] = False
del config["foo"]
self.assertEqual(results, [
(LoggingConfiguration.CREATED, "foo", True),
(LoggingConfiguration.MODIFIED, "foo", False),
(LoggingConfiguration.DELETED, "foo", NOTSET)])
def test_deregister_multiple_callback(self):
callback = lambda: None
config = ConfigurationWithCallbacks()
config.register_callback("foo", callback)
config.register_callback("foo", callback, append=True)
config.deregister_callback("foo", callback)
self.assertNotIn("foo", config.callbacks)
def test_assert_callable(self):
config = ConfigurationWithCallbacks()
with self.assertRaises(AssertionError):
config.register_callback("", None)