Upgraded syntax and switched linting over to pre-commit.ci

Linting checks are now run by pre-commit.ci instead of GitHub Actions.

6 files changed, 18 insertions, 10 deletions

diff --git a/tests/conftest.py b/tests/conftest.py
index 89c4510..37c363f 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,5 +1,6 @@
+from __future__ import annotations
+
 import sys
-from typing import Optional
 
 import pytest
 
@@ -24,10 +25,10 @@ def timezone() -> ZoneInfo:
     pytest.param(CBORSerializer, id='cbor'),
     pytest.param(JSONSerializer, id='json')
 ])
-def serializer(request) -> Optional[Serializer]:
+def serializer(request) -> Serializer | None:
     return request.param() if request.param else None
 
 
 @pytest.fixture
-def anyio_backend() -> 'str':
+def anyio_backend() -> str:
     return 'asyncio'
diff --git a/tests/test_datastores.py b/tests/test_datastores.py
index a73c5c2..3edff4a 100644
--- a/tests/test_datastores.py
+++ b/tests/test_datastores.py
@@ -3,7 +3,7 @@ from __future__ import annotations
 from contextlib import asynccontextmanager
 from datetime import datetime, timezone
 from tempfile import TemporaryDirectory
-from typing import AsyncGenerator, Optional
+from typing import AsyncGenerator
 
 import anyio
 import pytest
@@ -145,7 +145,7 @@ def schedules() -> list[Schedule]:
 @asynccontextmanager
 async def capture_events(
     datastore: AsyncDataStore, limit: int,
-    event_types: Optional[set[type[Event]]] = None
+    event_types: set[type[Event]] | None = None
 ) -> AsyncGenerator[list[Event], None]:
     def listener(event: Event) -> None:
         events.append(event)
diff --git a/tests/test_eventbrokers.py b/tests/test_eventbrokers.py
index 024b63d..efc9382 100644
--- a/tests/test_eventbrokers.py
+++ b/tests/test_eventbrokers.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 from concurrent.futures import Future
 from datetime import datetime, timezone
 from queue import Empty, Queue
diff --git a/tests/test_marshalling.py b/tests/test_marshalling.py
index 61fc783..c209388 100644
--- a/tests/test_marshalling.py
+++ b/tests/test_marshalling.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import sys
 from datetime import timedelta
 from functools import partial
@@ -36,7 +38,7 @@ class InheritedDummyClass(DummyClass):
         pass
 
 
-class TestCallableToRef(object):
+class TestCallableToRef:
     @pytest.mark.parametrize('obj, error', [
         (partial(DummyClass.meth), 'Cannot create a reference to a partial()'),
         (lambda: None, 'Cannot create a reference to a lambda')
@@ -66,7 +68,7 @@ class TestCallableToRef(object):
         assert callable_to_ref(input) == expected
 
 
-class TestCallableFromRef(object):
+class TestCallableFromRef:
     def test_valid_ref(self):
         from logging.handlers import RotatingFileHandler
         assert callable_from_ref('logging.handlers:RotatingFileHandler') is RotatingFileHandler
diff --git a/tests/test_schedulers.py b/tests/test_schedulers.py
index 2605535..7657cec 100644
--- a/tests/test_schedulers.py
+++ b/tests/test_schedulers.py
@@ -1,8 +1,9 @@
+from __future__ import annotations
+
 import sys
 import threading
 import time
 from datetime import datetime, timedelta, timezone
-from typing import Optional
 from uuid import UUID
 
 import anyio
@@ -114,7 +115,7 @@ class TestAsyncScheduler:
         async with AsyncScheduler(start_worker=False) as scheduler:
             trigger = IntervalTrigger(seconds=3, start_time=orig_start_time)
             job_added_event = anyio.Event()
-            job_id: Optional[UUID] = None
+            job_id: UUID | None = None
             scheduler.events.subscribe(job_added_listener, {JobAdded})
             schedule_id = await scheduler.add_schedule(dummy_async_job, trigger,
                                                        max_jitter=max_jitter)
@@ -260,7 +261,7 @@ class TestSyncScheduler:
         with Scheduler(start_worker=False) as scheduler:
             trigger = IntervalTrigger(seconds=3, start_time=orig_start_time)
             job_added_event = threading.Event()
-            job_id: Optional[UUID] = None
+            job_id: UUID | None = None
             scheduler.events.subscribe(job_added_listener, {JobAdded})
             schedule_id = scheduler.add_schedule(dummy_async_job, trigger, max_jitter=max_jitter)
             schedule = scheduler.get_schedule(schedule_id)
diff --git a/tests/test_workers.py b/tests/test_workers.py
index f1f020e..dcfafb1 100644
--- a/tests/test_workers.py
+++ b/tests/test_workers.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import threading
 from datetime import datetime, timezone
 from typing import Callable