From: Serhiy Storchaka <storchaka@gmail.com>
Date: Sat, 26 Jan 2013 09:52:06 +0000 (+0200)
Subject: Optimize the test for issue #13454.
X-Git-Tag: v3.2.4rc1~186
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=5bb893c44b9fd8304b91a5033e10cc868af8fba1;p=thirdparty%2FPython%2Fcpython.git

Optimize the test for issue #13454.
Now it requires almost 4x less memory and is almost 2x faster.
---

diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py
index 66e307da5a93..dfa371e2b866 100644
--- a/Lib/test/test_itertools.py
+++ b/Lib/test/test_itertools.py
@@ -932,10 +932,8 @@ class TestBasicOps(unittest.TestCase):
 
     # Issue 13454: Crash when deleting backward iterator from tee()
     def test_tee_del_backward(self):
-        forward, backward = tee(range(20000000))
-        for i in forward:
-            pass
-
+        forward, backward = tee(repeat(None, 20000000))
+        any(forward)  # exhaust the iterator
         del backward
 
     def test_StopIteration(self):