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-rw-r--r--Lib/json/tests/test_scanstring.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/Lib/json/tests/test_scanstring.py b/Lib/json/tests/test_scanstring.py
index 6b600db..53d0b66 100644
--- a/Lib/json/tests/test_scanstring.py
+++ b/Lib/json/tests/test_scanstring.py
@@ -107,3 +107,6 @@ class TestScanString(TestCase):
"xxx")
self.assertRaises(UnicodeDecodeError,
json.encoder.encode_basestring_ascii, b"xx\xff")
+
+ def test_overflow(self):
+ self.assertRaises(OverflowError, json.decoder.scanstring, b"xxx", sys.maxsize+1)