def test_takeover_while_takeover_raises():
relayer = Relayer(BaseClass, [Protocol.AirPlay])
relayer.register(SubClass4("airplay"), Protocol.AirPlay)
relayer.takeover(Protocol.DMAP)
with pytest.raises(exceptions.InvalidStateError):
relayer.takeover(Protocol.DMAP)
def test_takeover_overrides_main_instance():
relayer = Relayer(BaseClass, [Protocol.MRP, Protocol.DMAP])
relayer.register(SubClass4("mrp"), Protocol.MRP)
relayer.register(SubClass4("dmap"), Protocol.DMAP)
relayer.takeover(Protocol.DMAP)
assert relayer.main_instance.no_args() == "dmap"
def test_takeover_with_missing_implementation():
relayer = Relayer(BaseClass, [Protocol.AirPlay, Protocol.DMAP])
relayer.register(SubClass1(), Protocol.AirPlay)
relayer.register(BaseClass(), Protocol.DMAP)
relayer.takeover(Protocol.DMAP)
assert relayer.relay("no_args")() == "subclass1"
def test_takeover_overrides_main_protocol():
relayer = Relayer(BaseClass, [Protocol.MRP, Protocol.DMAP])
relayer.register(SubClass4("mrp"), Protocol.MRP)
relayer.register(SubClass4("dmap"), Protocol.DMAP)
relayer.takeover(Protocol.DMAP)
assert relayer.main_protocol == Protocol.DMAP
def test_takeover_overrides_manual_priority():
relayer = Relayer(BaseClass,
[Protocol.MRP, Protocol.DMAP, Protocol.AirPlay])
relayer.register(SubClass4("airplay"), Protocol.AirPlay)
relayer.register(SubClass4("mrp"), Protocol.MRP)
relayer.register(SubClass4("dmap"), Protocol.DMAP)
relayer.takeover(Protocol.AirPlay)
assert (relayer.relay(
"no_args",
[Protocol.DMAP, Protocol.MRP, Protocol.AirPlay])() == "airplay")
def test_takeover_and_release():
relayer = Relayer(BaseClass,
[Protocol.MRP, Protocol.DMAP, Protocol.AirPlay])
relayer.register(SubClass4("airplay"), Protocol.AirPlay)
relayer.register(SubClass4("mrp"), Protocol.MRP)
relayer.register(SubClass4("dmap"), Protocol.DMAP)
assert relayer.relay("no_args")() == "mrp"
relayer.takeover(Protocol.AirPlay)
assert relayer.relay("no_args")() == "airplay"
relayer.release()
assert relayer.relay("no_args")() == "mrp"