asyncio tests trigger deprecation warnings in 3.14

[ngoldbaum]

In #4811 we're adding a pytest config file to ignore these warnings, but if you delete it you'll see after running the pytests:

.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:169: 3692 warnings
  /Users/goldbaum/Documents/pyo3/pytests/.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:169: DeprecationWarning: 'asyncio.iscoroutinefunction' is deprecated and slated for removal in Python 3.16; use inspect.iscoroutinefunction() instead
    return asyncio.iscoroutinefunction(obj) or inspect.isasyncgenfunction(obj)

.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:433: 176 warnings
  /Users/goldbaum/Documents/pyo3/pytests/.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:433: DeprecationWarning: 'asyncio.iscoroutinefunction' is deprecated and slated for removal in Python 3.16; use inspect.iscoroutinefunction() instead
    return asyncio.iscoroutinefunction(func)

.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:498: 10 warnings
  /Users/goldbaum/Documents/pyo3/pytests/.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:498: DeprecationWarning: 'asyncio.iscoroutinefunction' is deprecated and slated for removal in Python 3.16; use inspect.iscoroutinefunction() instead
    and asyncio.iscoroutinefunction(func.hypothesis.inner_test)

tests/test_awaitable.py::test_iter_awaitable
  /Users/goldbaum/Documents/pyo3/pytests/.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:1005: DeprecationWarning: 'asyncio.get_event_loop_policy' is deprecated and slated for removal in Python 3.16
    return asyncio.get_event_loop_policy()

tests/test_awaitable.py::test_iter_awaitable
tests/test_awaitable.py::test_future_awaitable
  /Users/goldbaum/Documents/pyo3/pytests/.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:751: DeprecationWarning: 'asyncio.get_event_loop_policy' is deprecated and slated for removal in Python 3.16
    _restore_event_loop_policy(asyncio.get_event_loop_policy()),

tests/test_awaitable.py::test_iter_awaitable
tests/test_awaitable.py::test_future_awaitable
  /Users/goldbaum/Documents/pyo3/pytests/.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:977: DeprecationWarning: 'asyncio.set_event_loop_policy' is deprecated and slated for removal in Python 3.16
    asyncio.set_event_loop_policy(new_loop_policy)

tests/test_awaitable.py::test_iter_awaitable
tests/test_awaitable.py::test_future_awaitable
  /Users/goldbaum/Documents/pyo3/pytests/.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:978: DeprecationWarning: 'asyncio.get_event_loop_policy' is deprecated and slated for removal in Python 3.16
    loop = asyncio.get_event_loop_policy().new_event_loop()

tests/test_awaitable.py::test_iter_awaitable
tests/test_awaitable.py::test_future_awaitable
  /Users/goldbaum/Documents/pyo3/pytests/.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:766: DeprecationWarning: 'asyncio.get_event_loop_policy' is deprecated and slated for removal in Python 3.16
    policy = asyncio.get_event_loop_policy()

tests/test_awaitable.py::test_iter_awaitable
tests/test_awaitable.py::test_future_awaitable
  /Users/goldbaum/Documents/pyo3/pytests/.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:811: DeprecationWarning: 'asyncio.get_event_loop_policy' is deprecated and slated for removal in Python 3.16
    policy = asyncio.get_event_loop_policy()

tests/test_awaitable.py::test_iter_awaitable
tests/test_awaitable.py::test_future_awaitable
  /Users/goldbaum/Documents/pyo3/pytests/.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:835: DeprecationWarning: 'asyncio.set_event_loop_policy' is deprecated and slated for removal in Python 3.16
    asyncio.set_event_loop_policy(previous_policy)

tests/test_awaitable.py::test_iter_awaitable
tests/test_awaitable.py::test_future_awaitable
  /Users/goldbaum/Documents/pyo3/pytests/.nox/test/lib/python3.14t/site-packages/pytest_asyncio/plugin.py:847: DeprecationWarning: 'asyncio.get_event_loop_policy' is deprecated and slated for removal in Python 3.16
    policy = asyncio.get_event_loop_policy()

[ngoldbaum]

pytest-dev/pytest-asyncio#1025 is the upstream issue, maybe I should close in favor of that?

[davidhewitt]

Sure thing 👍

[seifertm]

pytest-dev/pytest-asyncio#1025 is the upstream issue, maybe I should close in favor of that?

Support for the development versions of Python 3.14 is now available in pytest-asyncio v1.0.0.

[ngoldbaum]

Thanks! I opened #5165 to remove the warning filter we added to paper over this.