Method test_truncated_large_frame

Lib/test/pickletester.py:1169–1180

(self)

            (pickle.UnpicklingError, 'LONG pickle has negative byte count'))

    def test_truncated_large_frame(self):
        data = lambda size: b'\x95' + struct.pack('<Q', size) + b'N.'
        #    0: \x95 FRAME      2
        #    9: N    NONE
        #   10: .    STOP
        self.assertIsNone(self.loads(data(2))) # self-testing
        for size in itersize(1 << 10, sys.maxsize - 9):
            self._test_truncated_data(data(size))
        if sys.maxsize + 1 < 1 << 64:
            self._test_truncated_data(data(sys.maxsize + 1),
                ((OverflowError, ValueError),
                 'FRAME length exceeds|frame size > sys.maxsize'))

    def test_truncated_large_binunicode8(self):
        data = lambda size: b'\x8d' + struct.pack('<Q', size) + b'.' * 5