Method test_issue29802

Lib/test/test_struct.py:669–676

(self)

            struct.unpack_from('<I', bytearray(10), sys.maxsize)

    def test_issue29802(self):
        # When the second argument of struct.unpack() was of wrong type
        # the Struct object was decrefed twice and the reference to
        # deallocated object was left in a cache.
        with self.assertRaises(TypeError):
            struct.unpack('b', 0)
        # Shouldn't crash.
        self.assertEqual(struct.unpack('b', b'a'), (b'a'[0],))

    def test_format_attr(self):
        s = struct.Struct('=i2H')