pickletester.py 文件源码

def check_negative_32b_binXXX(self, dumped):
        if sys.maxsize > 2**32:
            self.skipTest("test is only meaningful on 32-bit builds")
        # XXX Pure Python pickle reads lengths as signed and passes
        # them directly to read() (hence the EOFError)
        with self.assertRaises((pickle.UnpicklingError, EOFError,
                                ValueError, OverflowError)):
            self.loads(dumped)