def testUnsubscribeWeakById(self):
s = Subscriber([])
p = Publisher()
sid = p.subscribe('bar', s.on)
p.unsubscribe('bar', sid)
p.notify('foo', 'bar')
self.assertEqual(s.events, [])
def testUnsubscribeWeakById(self):
s = Subscriber([])
p = Publisher()
sid = p.subscribe('bar', s.on)
p.unsubscribe('bar', sid)
p.notify('foo', 'bar')
self.assertEqual(s.events, [])
def testAdaptSubscriber(self):
pub = Publisher()
events = []
# Adapt the subscriber (add 10 to each event info).
sub = Subscriber(events)
asub = SubAdapter('info', sub, lambda s, e, i: s(e, i+10))
pub.addSub(asub)
del asub
pub.notify('info', 1)
del sub
pub.notify('info', 2)
# Only adapted event 1 arrives before asub dies with sub.
self.assertEqual(events, [11])
# Adapt the subscribing method (add 10 to each event info).
sub = Subscriber(events)
asub = SubAdapter('info', sub, lambda s, e, i: s.onEvent(e, i+10))
pub.addSub(asub)
del asub
pub.notify('info', 1)
del sub
pub.notify('info', 2)
# Only adapted event 1 arrives before asub dies with sub.
self.assertEqual(events, [11, 31])
def testAdaptSubscriber(self):
pub = Publisher()
events = []
# Adapt the subscriber (add 10 to each event info).
sub = Subscriber(events)
asub = SubAdapter('info', sub, lambda s, e, i: s(e, i + 10))
pub.addSub(asub)
del asub
pub.notify('info', 1)
del sub
pub.notify('info', 2)
# Only adapted event 1 arrives before asub dies with sub.
self.assertEqual(events, [11])
# Adapt the subscribing method (add 10 to each event info).
sub = Subscriber(events)
asub = SubAdapter('info', sub, lambda s, e, i: s.onEvent(e, i + 10))
pub.addSub(asub)
del asub
pub.notify('info', 1)
del sub
pub.notify('info', 2)
# Only adapted event 1 arrives before asub dies with sub.
self.assertEqual(events, [11, 31])
def testLazyInfo(self):
s = Subscriber([])
p = Publisher()
p.subscribe('bar', s.on)
self.info_calls = 0
def info():
self.info_calls += 1
return {'n': 42}
# no subscribers to 'foo' so info won't be called.
p.notify('foo', info)
self.assertEqual(s.events, [])
self.assertEqual(self.info_calls, 0)
p.notify('bar', info)
self.assertEqual(s.events, [('bar', {'n': 42})])
self.assertEqual(self.info_calls, 1)
def testLazyInfo(self):
s = Subscriber([])
p = Publisher()
p.subscribe('bar', s.on)
self.info_calls = 0
def info():
self.info_calls += 1
return {'n': 42}
# no subscribers to 'foo' so info won't be called.
p.notify('foo', info)
self.assertEqual(s.events, [])
self.assertEqual(self.info_calls, 0)
p.notify('bar', info)
self.assertEqual(s.events, [('bar', {'n': 42})])
self.assertEqual(self.info_calls, 1)
def testArgs(self):
# Non-persistent.
events = []
def cb(*args):
events.append(args)
p = Publisher()
p.subscribe('done', cb, args=('x', 42))
p.notify('done', True)
self.assertEqual(events, [('done', True, 'x', 42)])
# Persistent.
store = {}
storage = Storage(store)
storage['sub'] = s = Subscriber([])
sid = p.subscribe('dusted', s.on, args=('hello',), how=PERSISTENT)
storage['pub'] = p
del s, p
p = storage['pub']
p.notify('dusted', 14)
# FIXME: a tuple is converted to a list here. That's a
# serializer bug.
self.assertEqual(storage['sub'].events, [['dusted', 14, 'hello']])
p.unsubscribe('dusted', sid, how=PERSISTENT)
p.notify('dusted', 15)
self.assertEqual(len(storage['sub'].events), 1)
def testArgs(self):
# Non-persistent.
events = []
def cb(*args):
events.append(args)
p = Publisher()
p.subscribe('done', cb, args=('x', 42))
p.notify('done', True)
self.assertEqual(events, [('done', True, 'x', 42)])
# Persistent.
store = {}
storage = Storage(store)
storage['sub'] = s = Subscriber([])
sid = p.subscribe('dusted', s.on, args=('hello', ), how=PERSISTENT)
storage['pub'] = p
del s, p
p = storage['pub']
p.notify('dusted', 14)
# FIXME: a tuple is converted to a list here. That's a
# serializer bug.
self.assertEqual(storage['sub'].events, [['dusted', 14, 'hello']])
p.unsubscribe('dusted', sid, how=PERSISTENT)
p.notify('dusted', 15)
self.assertEqual(len(storage['sub'].events), 1)