async def test_can_subscribe_to_specific_event_types_async():
async def fun(msg):
received = msg
assert received == 'hello'
event_stream = EventStream()
event_stream.subscribe(fun, str, Dispatchers().default_dispatcher)
await event_stream.publish('hello')
async def test_can_subscribe_to_specific_event_types():
received_events = []
async def fun(msg):
received_events.append(msg)
event_stream = EventStream()
event_stream.subscribe(fun, str)
await event_stream.publish('hello')
assert received_events[0] == 'hello'
async def test_only_receive_subscribed_to_event_types():
received_events = []
async def fun(msg):
received_events.append(msg)
event_stream = EventStream()
event_stream.subscribe(fun, int)
await event_stream.publish('not an int')
assert len(received_events) == 0
async def test_can_unsubscribe_from_events():
received_events = []
async def fun(msg):
received_events.append(msg)
event_stream = EventStream()
subscription = event_stream.subscribe(fun, str)
await event_stream.publish('first message')
subscription.unsubscribe()
await event_stream.publish('second message')
assert len(received_events) == 1
async def test_can_subscribe_to_all_event_types():
received_events = []
async def fun(msg):
received_events.append(msg)
event_stream = EventStream()
event_stream.subscribe(fun)
await event_stream.publish('hello')
assert received_events[0] == 'hello'
await event_stream.publish(1)
assert received_events[1] == 1
await event_stream.publish(True)
assert received_events[2] is True