commit f64a0cffca141fa0a8f1138b5f069ea0da446c9f
author Victor Stinner <victor.stinner@haypocalc.com> Mon Jun 20 17:54:33 2011 +0200
committer Victor Stinner <victor.stinner@haypocalc.com> Mon Jun 20 17:54:33 2011 +0200
tree 4d043737585f7df99d0246b18d2befaba4c456cc
parent 3fdf9d43e5b7f788f19a4a6d7f0a6530c5b8c504

Issue #12285: multiprocessing.Pool() raises a ValueError if the number of
processes if negative or null.

Lib/test/test_multiprocessing.py

diff --git a/Lib/test/test_multiprocessing.py b/Lib/test/test_multiprocessing.py
index fe19de0..de5e46a 100644
--- a/Lib/test/test_multiprocessing.py
+++ b/Lib/test/test_multiprocessing.py
@@ -1085,6 +1085,9 @@
         self.assertEqual(sorted(it), map(sqr, range(1000)))
 
     def test_make_pool(self):
+        self.assertRaises(ValueError, multiprocessing.Pool, -1)
+        self.assertRaises(ValueError, multiprocessing.Pool, 0)
+
         p = multiprocessing.Pool(3)
         self.assertEqual(3, len(p._pool))
         p.close()