Fix tests: replace deprecated asyncio.get_event_loop() for Python 3.12+

[Antonio112009]

Problem

asyncio.get_event_loop() no longer auto-creates an event loop in Python 3.12+ and raises RuntimeError in Python 3.14. This caused test_light_group, test_light_22, test_1394, and test_bulk to fail.

Additionally, the asyncio.create_task mock in test setup discarded coroutines without closing them, producing RuntimeWarning: coroutine was never awaited warnings.

Changes

tests/__init__.py

• DummyRegistry.call(): replaced asyncio.get_event_loop() with asyncio.new_event_loop() + asyncio.set_event_loop()
• init(): changed asyncio.create_task = lambda _: None to lambda coro: coro.close() to properly close discarded coroutines and eliminate warnings

tests/test_entity.py

• await_(): replaced asyncio.get_event_loop() with asyncio.new_event_loop() + asyncio.set_event_loop()

tests/test_misc.py

• test_bulk(): replaced asyncio.get_event_loop() with asyncio.new_event_loop() + asyncio.set_event_loop()

Result

• All 71 tests pass
• Coroutine warnings eliminated
• Only 1 remaining warning from homeassistant's own code (aiohttp deprecation in HomeAssistantApplication)

[AlexxIT]

Thanks!

[AlexxIT]

https://github.com/AlexxIT/SonoffLAN/releases/tag/v3.10.0