detect overflow in combinations (closes #23366)
diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py
index e5225f2..cbb1b92 100644
--- a/Lib/test/test_itertools.py
+++ b/Lib/test/test_itertools.py
@@ -137,6 +137,11 @@
self.assertEqual(result, list(combinations2(values, r))) # matches second pure python version
self.assertEqual(result, list(combinations3(values, r))) # matches second pure python version
+ @test_support.bigaddrspacetest
+ def test_combinations_overflow(self):
+ with self.assertRaises(OverflowError):
+ combinations("AA", 2**29)
+
@test_support.impl_detail("tuple reuse is specific to CPython")
def test_combinations_tuple_reuse(self):
self.assertEqual(len(set(map(id, combinations('abcde', 3)))), 1)