test_fileio.py 文件源码

def testInvalidFd(self):
        self.assertRaises(ValueError, _FileIO, -10)
        self.assertRaises(OSError, _FileIO, make_bad_fd())
        if sys.platform == 'win32':
            import msvcrt
            self.assertRaises(IOError, msvcrt.get_osfhandle, make_bad_fd())