commit 2fae27b735f4d93c8a7789a7a98857e1ce3c7193
author Victor Stinner <victor.stinner@haypocalc.com> Mon Jun 20 17:53:35 2011 +0200
committer Victor Stinner <victor.stinner@haypocalc.com> Mon Jun 20 17:53:35 2011 +0200
tree 82049c5c1c54d684d81f979b201d9643d124a3ea
parent 4707a998e4a0a0587dd6265e0c8c64588ab23712

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 2614689..dc41e15 100644
--- a/Lib/test/test_multiprocessing.py
+++ b/Lib/test/test_multiprocessing.py
@@ -1089,6 +1089,9 @@
         self.assertEqual(sorted(it), list(map(sqr, list(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()