check for overflow in combinations_with_replacement (closes #23365)
diff --git a/Lib/test/test_itertools.py b/Lib/test/test_itertools.py
index cbb1b92..9cd3ad8 100644
--- a/Lib/test/test_itertools.py
+++ b/Lib/test/test_itertools.py
@@ -213,6 +213,11 @@
self.assertEqual(result, list(cwr1(values, r))) # matches first pure python version
self.assertEqual(result, list(cwr2(values, r))) # matches second pure python version
+ @test_support.bigaddrspacetest
+ def test_combinations_with_replacement_overflow(self):
+ with self.assertRaises(OverflowError):
+ combinations_with_replacement("AA", 2**30)
+
@test_support.impl_detail("tuple reuse is specific to CPython")
def test_combinations_with_replacement_tuple_reuse(self):
cwr = combinations_with_replacement