commit 69e88975059b0c74e3e9a17dd46b715a532cfd20
author Neal Norwitz <nnorwitz@gmail.com> Sat Sep 02 02:58:13 2006 +0000
committer Neal Norwitz <nnorwitz@gmail.com> Sat Sep 02 02:58:13 2006 +0000
tree 5d38c338f3b28f72896abcac26870cbd83afc848
parent 6aefa916a96f7d3ce7f634134dba6060c68b647a

Bug #1550714: fix SystemError from itertools.tee on negative value for n.

Needs backport to 2.5.1 and earlier.

Lib/test/test_itertools.py

diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py
index 4b631dd..6898725 100644
--- a/Lib/test/test_itertools.py
+++ b/Lib/test/test_itertools.py
@@ -371,6 +371,7 @@
 
         # test values of n
         self.assertRaises(TypeError, tee, 'abc', 'invalid')
+        self.assertRaises(ValueError, tee, [], -1)
         for n in xrange(5):
             result = tee('abc', n)
             self.assertEqual(type(result), tuple)