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-rw-r--r--Lib/test/test_json/test_decode.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/test/test_json/test_decode.py b/Lib/test/test_json/test_decode.py
index 35c02de..591b2e2 100644
--- a/Lib/test/test_json/test_decode.py
+++ b/Lib/test/test_json/test_decode.py
@@ -91,5 +91,9 @@ class TestDecode:
self.assertEqual(self.loads(bom_in_str), '\ufeff')
self.assertEqual(self.json.load(StringIO(bom_in_str)), '\ufeff')
+ def test_negative_index(self):
+ d = self.json.JSONDecoder()
+ self.assertRaises(ValueError, d.raw_decode, 'a'*42, -50000)
+
class TestPyDecode(TestDecode, PyTest): pass
class TestCDecode(TestDecode, CTest): pass