t.i.task.Clock.advance should set the call.called attribute.
|Reported by:||ralphm||Owned by:|
DelayedCall produced by
has its cancel() method called after its callback function has been called, the following exception is raised:
exceptions.ValueError: list.remove(x): x not in list
This is quite a cryptic error.
Setting call.called to 1 before calling the callback makes the cancel() call raise the proper