def test_is_subscribed_exist(ed): listener = lambda x: x ed.subscribe("T1", listener, lambda x: True) assert True is ed.is_subscribed("T1", listener)
def test_is_subscribed_not_listener(ed): listener = lambda x: x ed.subscribe("T1", listener, lambda x: True) assert False is ed.is_subscribed("T1", lambda y: y)
def test_is_subscribed_not_topic(ed): assert False is ed.is_subscribed("T1", lambda x: x)