1 files changed, 15 insertions, 0 deletions
diff --git a/conftest.py b/conftest.py
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+++ b/conftest.py
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+"""Repo-wide pytest configuration."""
+
+import asyncio
+import sys
+
+# aiortc's ICE stack (aioice) never completes a loopback DataChannel handshake
+# on Windows' default ProactorEventLoop — test_webrtc_transport.py hangs
+# indefinitely, and with no per-test timeout it took the whole run down with it.
+# A SelectorEventLoop is aiortc's documented requirement on Windows. The
+# trade-off: SelectorEventLoop cannot spawn subprocesses on Windows, so the
+# ffmpeg/ffprobe streaming tests fail here rather than pass and need a per-module
+# Proactor override or skipif(win32). Set at import, before any loop is created;
+# no effect off Windows, where the default policy already works for both.
+if sys.platform == "win32":
+    asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())