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from __future__ import annotations
from typing import TYPE_CHECKING, Any
import pytest
from pykka import Actor, ActorRegistry
if TYPE_CHECKING:
from pytest_mock import MockerFixture
from pykka import ActorRef
from tests.types import Runtime
pytestmark = pytest.mark.usefixtures("_stop_all")
class ActorBase(Actor):
received_messages: list[Any]
def __init__(self) -> None:
super().__init__()
self.received_messages = []
def on_receive(self, message: Any) -> None:
self.received_messages.append(message)
class ActorA(ActorBase):
pass
class ActorB(ActorBase):
pass
@pytest.fixture(scope="module")
def actor_a_class(runtime: Runtime) -> type[ActorA]:
class ActorAImpl(ActorA, runtime.actor_class): # type: ignore[name-defined]
pass
return ActorAImpl
@pytest.fixture(scope="module")
def actor_b_class(runtime: Runtime) -> type[ActorB]:
class ActorBImpl(ActorB, runtime.actor_class): # type: ignore[name-defined]
pass
return ActorBImpl
@pytest.fixture
def actor_ref(actor_a_class: type[ActorA]) -> ActorRef[ActorA]:
return actor_a_class.start()
@pytest.fixture
def a_actor_refs(actor_a_class: type[ActorA]) -> list[ActorRef[ActorA]]:
return [actor_a_class.start() for _ in range(3)]
@pytest.fixture
def b_actor_refs(actor_b_class: type[ActorB]) -> list[ActorRef[ActorB]]:
return [actor_b_class.start() for _ in range(5)]
def test_actor_is_registered_when_started(
actor_ref: ActorRef[ActorA],
) -> None:
assert actor_ref in ActorRegistry.get_all()
def test_actor_is_unregistered_when_stopped(
actor_ref: ActorRef[ActorA],
) -> None:
assert actor_ref in ActorRegistry.get_all()
actor_ref.stop()
assert actor_ref not in ActorRegistry.get_all()
def test_actor_may_be_registered_manually(
actor_ref: ActorRef[ActorA],
) -> None:
ActorRegistry.unregister(actor_ref)
assert actor_ref not in ActorRegistry.get_all()
ActorRegistry.register(actor_ref)
assert actor_ref in ActorRegistry.get_all()
def test_actor_may_be_unregistered_multiple_times_without_error(
actor_ref: ActorRef[ActorA],
) -> None:
ActorRegistry.unregister(actor_ref)
assert actor_ref not in ActorRegistry.get_all()
ActorRegistry.unregister(actor_ref)
assert actor_ref not in ActorRegistry.get_all()
ActorRegistry.register(actor_ref)
assert actor_ref in ActorRegistry.get_all()
def test_all_actors_can_be_stopped_through_registry(
a_actor_refs: list[ActorRef[ActorA]],
b_actor_refs: list[ActorRef[ActorB]],
) -> None:
assert len(ActorRegistry.get_all()) == 8
ActorRegistry.stop_all(block=True)
assert len(ActorRegistry.get_all()) == 0
def test_stop_all_stops_last_started_actor_first_if_blocking(
mocker: MockerFixture,
) -> None:
mocker.patch.object(ActorRegistry, "get_all")
stopped_actors = []
started_actors = [mocker.Mock(name=f"{i}") for i in range(3)]
started_actors[0].stop.side_effect = lambda *a, **kw: stopped_actors.append( # pyright: ignore[reportUnknownLambdaType, reportUnknownMemberType]
started_actors[0]
)
started_actors[1].stop.side_effect = lambda *a, **kw: stopped_actors.append( # pyright: ignore[reportUnknownLambdaType, reportUnknownMemberType]
started_actors[1]
)
started_actors[2].stop.side_effect = lambda *a, **kw: stopped_actors.append( # pyright: ignore[reportUnknownLambdaType, reportUnknownMemberType]
started_actors[2]
)
ActorRegistry.get_all.return_value = ( # type: ignore[attr-defined] # pyright: ignore[reportFunctionMemberAccess]
started_actors
)
ActorRegistry.stop_all(block=True)
assert stopped_actors[0] == started_actors[2]
assert stopped_actors[1] == started_actors[1]
assert stopped_actors[2] == started_actors[0]
def test_actors_may_be_looked_up_by_class(
actor_a_class: type[ActorA],
a_actor_refs: list[ActorRef[ActorA]],
b_actor_refs: list[ActorRef[ActorB]],
) -> None:
result = ActorRegistry.get_by_class(actor_a_class)
for a_actor in a_actor_refs:
assert a_actor in result
for b_actor in b_actor_refs:
assert b_actor not in result # type: ignore[comparison-overlap]
def test_actors_may_be_looked_up_by_superclass(
actor_a_class: type[ActorA],
a_actor_refs: list[ActorRef[ActorA]],
b_actor_refs: list[ActorRef[ActorB]],
) -> None:
result = ActorRegistry.get_by_class(actor_a_class)
for a_actor in a_actor_refs:
assert a_actor in result
for b_actor in b_actor_refs:
assert b_actor not in result # type: ignore[comparison-overlap]
def test_actors_may_be_looked_up_by_class_name(
actor_a_class: type[ActorA],
a_actor_refs: list[ActorRef[ActorA]],
b_actor_refs: list[ActorRef[ActorB]],
) -> None:
result = ActorRegistry.get_by_class_name("ActorAImpl")
for a_actor in a_actor_refs:
assert a_actor in result
for b_actor in b_actor_refs:
assert b_actor not in result
def test_actors_may_be_looked_up_by_urn(
actor_ref: ActorRef[ActorA],
) -> None:
result = ActorRegistry.get_by_urn(actor_ref.actor_urn)
assert result == actor_ref
def test_get_by_urn_returns_none_if_not_found() -> None:
result = ActorRegistry.get_by_urn("urn:foo:bar")
assert result is None
def test_broadcast_sends_message_to_all_actors_if_no_target(
a_actor_refs: list[ActorRef[ActorA]],
b_actor_refs: list[ActorRef[ActorB]],
) -> None:
ActorRegistry.broadcast({"command": "foo"})
running_actors = ActorRegistry.get_all()
assert running_actors
for actor_ref in running_actors:
received_messages = actor_ref.proxy().received_messages.get()
assert {"command": "foo"} in received_messages
def test_broadcast_sends_message_to_all_actors_of_given_class(
actor_a_class: type[ActorA],
actor_b_class: type[ActorB],
a_actor_refs: list[ActorRef[ActorA]],
b_actor_refs: list[ActorRef[ActorB]],
) -> None:
ActorRegistry.broadcast({"command": "foo"}, target_class=actor_a_class)
class_a_refs = ActorRegistry.get_by_class(actor_a_class)
assert set(class_a_refs) == set(a_actor_refs)
for actor_a_ref in class_a_refs:
received_messages = actor_a_ref.proxy().received_messages.get()
assert {"command": "foo"} in received_messages
class_b_refs = ActorRegistry.get_by_class(actor_b_class)
assert set(class_b_refs) == set(b_actor_refs)
for actor_b_ref in class_b_refs:
received_messages = actor_b_ref.proxy().received_messages.get()
assert {"command": "foo"} not in received_messages
def test_broadcast_sends_message_to_all_actors_of_given_class_name(
actor_a_class: type[ActorA],
actor_b_class: type[ActorB],
a_actor_refs: list[ActorRef[ActorA]],
b_actor_refs: list[ActorRef[ActorB]],
) -> None:
ActorRegistry.broadcast({"command": "foo"}, target_class="ActorAImpl")
class_a_refs = ActorRegistry.get_by_class_name("ActorAImpl")
assert set(class_a_refs) == set(a_actor_refs)
for actor_a_ref in class_a_refs:
received_messages = actor_a_ref.proxy().received_messages.get()
assert {"command": "foo"} in received_messages
class_b_refs = ActorRegistry.get_by_class_name("ActorBImpl")
assert set(class_b_refs) == set(b_actor_refs)
for actor_b_ref in class_b_refs:
received_messages = actor_b_ref.proxy().received_messages.get()
assert {"command": "foo"} not in received_messages
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