def test_dispatcher_topic_doesnt_contain_hook(capsys):
disp = EventDispatcher()
evt = Event(name='emit signal', context='test')
evt.enabled = True
evt.topics.append({})
disp.dispatch(evt, 'hook', 1234)
captured = capsys.readouterr()
assert captured.out == ""
def test_dispatcher_single_topic(capsys):
disp = EventDispatcher()
evt = Event(name='emit signal', context='test')
evt.enabled = True
def handler(context, data):
print(context.event.metadata, context.hook, data)
evt.topics.append({'hook': [handler]})
disp.dispatch(evt, 'hook', 1234)
captured = capsys.readouterr()
assert captured.out == """\
def test_dispatcher_alter_event_topic_content_while_dispatch(capsys):
disp = EventDispatcher()
evt = Event(name='emit signal', context='test')
evt.enabled = True
def handler(context, data):
print(context.event.metadata, context.hook, data)
t['hook'].clear()
evt.topics.append({'hook': [handler]})
t = {'hook': [handler]}
evt.topics.append(t)
disp.dispatch(evt, 'hook', 1234)
print('#2')
disp.dispatch(evt, 'hook', 1234)
captured = capsys.readouterr()
assert captured.out == """\