[Python-checkins] cpython (2.7): Optimize the test for issue #13454.

Sat Jan 26 10:56:34 CET 2013

http://hg.python.org/cpython/rev/4ee8d38398d4
changeset: 81744:4ee8d38398d4
branch: 2.7
parent: 81737:5970c90dd8d1
user: Serhiy Storchaka <storchaka at gmail.com>
date: Sat Jan 26 11:51:42 2013 +0200
summary:
 Optimize the test for issue #13454.
Now it requires almost 4x less memory and is almost 2x faster.
files:
 Lib/test/test_itertools.py | 6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py
--- a/Lib/test/test_itertools.py
+++ b/Lib/test/test_itertools.py
@@ -908,10 +908,8 @@
 
 # Issue 13454: Crash when deleting backward iterator from tee()
 def test_tee_del_backward(self):
- forward, backward = tee(xrange(20000000))
- for i in forward:
- pass
-
+ forward, backward = tee(repeat(None, 20000000))
+ any(forward) # exhaust the iterator
 del backward
 
 def test_StopIteration(self):
-- 
Repository URL: http://hg.python.org/cpython
