def test_remove(self):
# Create an observable dict
observable_dict = ObservableDict({"good": "bye"})
# Subscribe to remove events
subscription = observable_dict.subscribe("remove", self.callback)
# Remove an item from it
del observable_dict["good"]
# Ensure this triggered the callback
self.assertEqual(("good", "bye"), self.callback_result)
def test_change(self):
# Create an observable dict
observable_dict = ObservableDict({"good": "bye"})
# Subscribe to change events
subscription = observable_dict.subscribe("change", self.callback)
# Change an item in it
observable_dict["good"] = "morning"
# Ensure this triggered the callback
self.assertEqual(("good", "morning"), self.callback_result)
def test_add(self):
# Create an observable dict
observable_dict = ObservableDict()
# Subscribe to add events
subscription = observable_dict.subscribe("add", self.callback)
# Add an item to it
observable_dict["foo"] = "bar"
# Ensure this triggered the callback
self.assertEqual(("foo", "bar"), self.callback_result)
def test_propagation(self):
class Alerter(SimpleObservable):
def alert(self):
self._notify(None, "alert", "Alert!")
# Create an observable dict that contains other observables
observable_dict = ObservableDict({
"this": Alerter(),
"that": Alerter()
})
# Subscribe to all events
subscription = observable_dict.subscribe("__all__", self.callback)
# Trigger an alert on something in the dict
observable_dict["that"].alert()
# Ensure this triggered the callback
self.assertEqual((("that", None), "alert", "Alert!"), self.callback_result)