async def emit_async():
emitter = EventEmitter()
emitted = []
async def listener(value):
emitted.append(value)
emitter.add_listener("foo", listener)
emitter.emit("foo", "bar")
emitter.emit("bar", "baz")
await sleep(0)
assert emitted == ["bar"]
def emit_sync():
emitter = EventEmitter()
emitted = []
def listener(value):
emitted.append(value)
emitter.add_listener("foo", listener)
assert emitter.emit("foo", "bar") is True
assert emitted == ["bar"]
assert emitter.emit("bar", "baz") is False
assert emitted == ["bar"]
async def emit_async():
emitter = EventEmitter()
emitted = []
async def listener(value):
emitted.append(value)
emitter.add_listener('foo', listener)
emitter.emit('foo', 'bar')
emitter.emit('bar', 'baz')
await sleep(0)
assert emitted == ['bar']
def emit_sync():
emitter = EventEmitter()
emitted = []
def listener(value):
emitted.append(value)
emitter.add_listener('foo', listener)
assert emitter.emit('foo', 'bar') is True
assert emitted == ['bar']
assert emitter.emit('bar', 'baz') is False
assert emitted == ['bar']
def add_and_remove_listeners():
emitter = EventEmitter()
def listener1(value):
pass
def listener2(value):
pass
emitter.add_listener("foo", listener1)
emitter.add_listener("foo", listener2)
emitter.add_listener("bar", listener1)
assert emitter.listeners["foo"] == [listener1, listener2]
assert emitter.listeners["bar"] == [listener1]
emitter.remove_listener("foo", listener1)
assert emitter.listeners["foo"] == [listener2]
assert emitter.listeners["bar"] == [listener1]
emitter.remove_listener("foo", listener2)
assert emitter.listeners["foo"] == []
assert emitter.listeners["bar"] == [listener1]
emitter.remove_listener("bar", listener1)
assert emitter.listeners["bar"] == []
def add_and_remove_listeners():
emitter = EventEmitter()
def listener1(value):
pass
def listener2(value):
pass
emitter.add_listener('foo', listener1)
emitter.add_listener('foo', listener2)
emitter.add_listener('bar', listener1)
assert emitter.listeners['foo'] == [listener1, listener2]
assert emitter.listeners['bar'] == [listener1]
emitter.remove_listener('foo', listener1)
assert emitter.listeners['foo'] == [listener2]
assert emitter.listeners['bar'] == [listener1]
emitter.remove_listener('foo', listener2)
assert emitter.listeners['foo'] == []
assert emitter.listeners['bar'] == [listener1]
emitter.remove_listener('bar', listener1)
assert emitter.listeners['bar'] == []
