[3.11] gh-109706: Fix multiprocessing test_nested_startmethod() (GH-109707) (#109763)

gh-109706: Fix multiprocessing test_nested_startmethod() (GH-109707)

Don't check order, queue items can be written in any order.
(cherry picked from commit b03a791497ff4b3c42805e06c73d08ac34087402)

Co-authored-by: Victor Stinner <vstinner@python.org>

diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
index ac0ed397684f421f6aa849cad727145fb368e7e7..e83c4416cb05a3dbc56969a965abb3e987528a8a 100644 (file)
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -5396,7 +5396,9 @@ class TestStartMethod(unittest.TestCase):
         while not queue.empty():
             results.append(queue.get())
 
-        self.assertEqual(results, [2, 1])
+        # gh-109706: queue.put(1) can write into the queue before queue.put(2),
+        # there is no synchronization in the test.
+        self.assertSetEqual(set(results), set([2, 1]))
 
 
 @unittest.skipIf(sys.platform == "win32",