Issue #13546: Fixed an overflow issue that could crash the intepreter when

calling sys.setrecursionlimit((1<<31)-1).

2.7 only.

1 files changed, 12 insertions, 0 deletions

diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index 49f5388..6c5fc24 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -224,6 +224,18 @@ class SysModuleTest(unittest.TestCase):
         self.assertEqual(sys.getrecursionlimit(), 10000)
         sys.setrecursionlimit(oldlimit)
 
+        self.assertRaises(OverflowError, sys.setrecursionlimit, 1 << 31)
+        try:
+            sys.setrecursionlimit((1 << 31) - 5)
+            try:
+                # issue13546: isinstance(e, ValueError) used to fail
+                # when the recursion limit is close to 1<<31
+                raise ValueError()
+            except ValueError, e:
+                pass
+        finally:
+            sys.setrecursionlimit(oldlimit)
+
     def test_getwindowsversion(self):
         # Raise SkipTest if sys doesn't have getwindowsversion attribute
         test.test_support.get_attribute(sys, "getwindowsversion")