Fix tests for Python3.14

asyncio.get_event_loop() started raising a RuntimeError if there was no
loop running.

Author: AlexanderWells-diamond

tests/sim_asyncio_ioc_override.py

@@ -37,7 +37,10 @@
 
         # Run the IOC
         builder.LoadDatabase()
-        event_loop = asyncio.get_event_loop()
+        try:
+            event_loop = asyncio.get_event_loop()
+        except RuntimeError:
+            event_loop = asyncio.new_event_loop()
         worker = threading.Thread(target=event_loop.run_forever)
         worker.daemon = True
         worker.start()
@@ -49,6 +52,7 @@
         try:
             from pytest_cov.embed import cleanup
             sys._run_exitfuncs = cleanup
+
         except ImportError:
             # Note that pytest_cov.embed no longer exists in pytest_cov>=7.0.0
             pass

tests/test_asyncio.py

@@ -133,7 +133,10 @@ async def test_asyncio_ioc_override(asyncio_ioc_override):
 def test_asyncio_dispatcher_event_loop():
     """Test that passing a non-running event loop to the AsyncioDispatcher
     raises an exception"""
-    event_loop = asyncio.get_event_loop()
+    try:
+        event_loop = asyncio.get_event_loop()
+    except RuntimeError:
+        event_loop = asyncio.new_event_loop()
     with pytest.raises(ValueError):
         AsyncioDispatcher(loop=event_loop)