[Python-checkins] bpo-34040, multiprocessing: Fix test_forkserver_sigkill() (GH-8081)

[Victor Stinner]

https://github.com/python/cpython/commit/07888e1cce89e9bb7dc501e287b4cb126e01c378
commit: 07888e1cce89e9bb7dc501e287b4cb126e01c378
branch: master
author: Victor Stinner <vstinner at redhat.com>
committer: GitHub <noreply at github.com>
date: 2018-07-04T11:49:41+02:00
summary:

bpo-34040, multiprocessing: Fix test_forkserver_sigkill() (GH-8081)

Fix test_forkserver_sigkill() of test_multiprocessing_forkserver:
give more time to the first child process to complete, double the
sleep in the parent process.

Reduce also the child process sleep from 1000 ms to 500 ms, to not change
the total duration of the test.

files:
M Lib/test/_test_multiprocessing.py

diff --git a/Lib/test/_test_multiprocessing.py b/Lib/test/_test_multiprocessing.py
index 4c5da2fccda8..c4810a5ce17e 100644
--- a/Lib/test/_test_multiprocessing.py
+++ b/Lib/test/_test_multiprocessing.py
@@ -651,13 +651,17 @@ def check_forkserver_death(self, signum):
         from multiprocessing.forkserver import _forkserver
         _forkserver.ensure_running()
 
+        # First process sleeps 500 ms
+        delay = 0.5
+
         evt = self.Event()
-        proc = self.Process(target=self._sleep_and_set_event, args=(evt, 1.0))
+        proc = self.Process(target=self._sleep_and_set_event, args=(evt, delay))
         proc.start()
 
         pid = _forkserver._forkserver_pid
         os.kill(pid, signum)
-        time.sleep(1.0)  # give it time to die
+        # give time to the fork server to die and time to proc to complete
+        time.sleep(delay * 2.0)
 
         evt2 = self.Event()
         proc2 = self.Process(target=self._sleep_and_set_event, args=(evt2,))