Fix aiohttp test client cleanup

Author: tode-rl

tests/conftest.py

@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import os
+import asyncio
 import logging
 from typing import TYPE_CHECKING, Iterator, AsyncIterator
 
@@ -94,6 +95,7 @@ async def async_client(request: FixtureRequest) -> AsyncIterator[AsyncRunloop]:
     # defaults
     strict = True
     http_client: None | httpx.AsyncClient = None
+    needs_aiohttp_cleanup = False
 
     if isinstance(param, bool):
         strict = param
@@ -104,10 +106,14 @@ async def async_client(request: FixtureRequest) -> AsyncIterator[AsyncRunloop]:
         http_client_type = param.get("http_client", "httpx")
         if http_client_type == "aiohttp":
             http_client = DefaultAioHttpClient()
+            needs_aiohttp_cleanup = True
     else:
         raise TypeError(f"Unexpected fixture parameter type {type(param)}, expected bool or dict")
 
     async with AsyncRunloop(
         base_url=base_url, bearer_token=bearer_token, _strict_response_validation=strict, http_client=http_client
     ) as client:
         yield client
+
+    if needs_aiohttp_cleanup:
+        await asyncio.sleep(0)