From 2064a48fc5987739725fc123f7a50ea906cb0579 Mon Sep 17 00:00:00 2001
From: David Brochart <david.brochart@gmail.com>
Date: Tue, 19 Nov 2024 11:14:32 +0100
Subject: [PATCH] Set asyncio WindowsSelectorEventLoopPolicy on Windows

---
 tests/conftest.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tests/conftest.py b/tests/conftest.py
index db992b747..49e38c7c0 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,4 +1,6 @@
+import asyncio
 import logging
+import os
 from math import inf
 from threading import Event
 from typing import Any, Callable, no_type_check
@@ -40,6 +42,11 @@
     resource.setrlimit(resource.RLIMIT_NOFILE, (soft, hard))
 
 
+# Enforce selector event loop on Windows.
+if os.name == "nt":
+    asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())  # type:ignore
+
+
 class TestSession(Session):
     """A session that copies sent messages to an internal stream, so that
     they can be accessed later.