From 3d8f4dea50d4c1d40b139e550656fecf2daf892b Mon Sep 17 00:00:00 2001
From: Sam Gross <colesbury@gmail.com>
Date: Tue, 12 Mar 2024 20:11:58 -0400
Subject: [PATCH] gh-116682: stdout may be empty in
 test_cancel_futures_wait_false (#116683)

If the `shutdown()` call happens before the worker thread starts executing
the task, then nothing will be printed to stdout.
---
 Lib/test/test_concurrent_futures/test_shutdown.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Lib/test/test_concurrent_futures/test_shutdown.py b/Lib/test/test_concurrent_futures/test_shutdown.py
index 45dab7a75fdd504..7a4065afd46fc84 100644
--- a/Lib/test/test_concurrent_futures/test_shutdown.py
+++ b/Lib/test/test_concurrent_futures/test_shutdown.py
@@ -247,7 +247,9 @@ def test_cancel_futures_wait_false(self):
         # Errors in atexit hooks don't change the process exit code, check
         # stderr manually.
         self.assertFalse(err)
-        self.assertEqual(out.strip(), b"apple")
+        # gh-116682: stdout may be empty if shutdown happens before task
+        # starts executing.
+        self.assertIn(out.strip(), [b"apple", b""])
 
 
 class ProcessPoolShutdownTest(ExecutorShutdownTest):