async def test_handler_unregister(mocker):
cb = mocker.MagicMock()
h_name = "removable"
handler = PersistentHandler(cb, name=h_name)
mm = AsyncMessageManager()
mm.register_handler(handler)
assert len(mm.handler_registry) == 1
mm.deregister_handler(h_name)
assert len(mm.handler_registry) == 0
async def test_raw_handler_register_unregister(mocker):
cb = mocker.MagicMock()
msg = Container()
h_name = 'removable'
handler = RAWMessageHandler(cb, name=h_name)
mm = AsyncMessageManager()
mm.register_handler(handler)
assert len(mm.raw_handlers) == 1
mm.deregister_handler(h_name)
assert len(mm.raw_handlers) == 0