From 28b6274b7e369612d31bbe09fc591021a9cf5731 Mon Sep 17 00:00:00 2001 From: Sam Gross Date: Sat, 1 Mar 2025 11:29:47 -0500 Subject: [PATCH] gh-130730: Fix flaky `test_active_children` test Use an Event object instead of time.sleep(). --- Lib/test/_test_multiprocessing.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py index 5dd89bd5af7daa..d3a094ce259b3e 100644 --- a/Lib/test/_test_multiprocessing.py +++ b/Lib/test/_test_multiprocessing.py @@ -589,13 +589,15 @@ def test_cpu_count(self): def test_active_children(self): self.assertEqual(type(self.active_children()), list) - p = self.Process(target=time.sleep, args=(DELTA,)) + event = self.Event() + p = self.Process(target=event.wait) self.assertNotIn(p, self.active_children()) p.daemon = True p.start() self.assertIn(p, self.active_children()) + event.set() p.join() self.assertNotIn(p, self.active_children())