diff options
Diffstat (limited to 'Lib/test/test_marshal.py')
| -rw-r--r-- | Lib/test/test_marshal.py | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Lib/test/test_marshal.py b/Lib/test/test_marshal.py index 292746b..ab06237 100644 --- a/Lib/test/test_marshal.py +++ b/Lib/test/test_marshal.py @@ -2,6 +2,7 @@ from test import support import array +import io import marshal import sys import unittest @@ -259,6 +260,17 @@ class BugsTestCase(unittest.TestCase): unicode_string = 'T' self.assertRaises(TypeError, marshal.loads, unicode_string) + def test_bad_reader(self): + class BadReader(io.BytesIO): + def read(self, n=-1): + b = super().read(n) + if n is not None and n > 4: + b += b' ' * 10**6 + return b + for value in (1.0, 1j, b'0123456789', '0123456789'): + self.assertRaises(ValueError, marshal.load, + BadReader(marshal.dumps(value))) + def _test_eof(self): data = marshal.dumps(("hello", "dolly", None)) for i in range(len(data)): |