1 files changed, 5 insertions, 0 deletions
diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py
index 479167e..a1875ff 100644
--- a/Lib/test/test_itertools.py
+++ b/Lib/test/test_itertools.py
@@ -788,6 +788,11 @@ class TestBasicOps(unittest.TestCase):
         self.assertRaises(ValueError, islice, range(10), 1, 'a', 1)
         self.assertEqual(len(list(islice(count(), 1, 10, maxsize))), 1)
 
+        # Issue #10323:  Less islice in a predictable state
+        c = count()
+        self.assertEqual(list(islice(c, 1, 3, 50)), [1])
+        self.assertEqual(next(c), 3)
+
     def test_takewhile(self):
         data = [1, 3, 5, 20, 2, 4, 6, 8]
         underten = lambda x: x<10