SF bug #681003: itertools issues

* Fixed typo in exception message for times()
* Filled in missing times_traverse()
* Document reasons that imap() did not adopt a None fill-in feature
* Document that count(sys.maxint) will wrap-around on overflow
* Add overflow test to islice()
* Check that starmap()'s argument returns a tuple
* Verify that imap()'s tuple re-use is safe
* Make a similar tuple re-use (with safety check) for izip()

1 files changed, 3 insertions, 0 deletions

diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py
index 1239301..cef1718 100644
--- a/Lib/test/test_itertools.py
+++ b/Lib/test/test_itertools.py
@@ -1,6 +1,7 @@
 import unittest
 from test import test_support
 from itertools import *
+import sys
 
 class TestBasicOps(unittest.TestCase):
     def test_count(self):
@@ -47,6 +48,7 @@ class TestBasicOps(unittest.TestCase):
         import operator
         self.assertEqual(list(starmap(operator.pow, zip(range(3), range(1,7)))),
                          [0**1, 1**2, 2**3])
+        self.assertRaises(TypeError, list, starmap(operator.pow, [[4,5]]))
 
     def test_islice(self):
         for args in [          # islice(args) should agree with range(args)
@@ -71,6 +73,7 @@ class TestBasicOps(unittest.TestCase):
         self.assertRaises(ValueError, islice, xrange(10), 1, -5, -1)
         self.assertRaises(ValueError, islice, xrange(10), 1, 10, -1)
         self.assertRaises(ValueError, islice, xrange(10), 1, 10, 0)
+        self.assertEqual(len(list(islice(count(), 1, 10, sys.maxint))), 1)
 
     def test_takewhile(self):
         data = [1, 3, 5, 20, 2, 4, 6, 8]