def test_LISTNonASCIIBytes(self):
        """
        When LIST receive a filename as byte string from L{IFTPShell.list}
        it will just pass the data to lower level without any change.

        @return: L{_listTestHelper}
        """
        return self._listTestHelper(
            "LIST",
            (b'my resum\xc3\xa9', (
                0, 1, filepath.Permissions(0o777), 0, 0, 'user', 'group')),
            b'drwxrwxrwx   0 user      group                   '
            b'0 Jan 01  1970 my resum\xc3\xa9\r\n')

        When LIST receive a filename as byte string from L{IFTPShell.list}
        it will just pass the data to lower level without any change.

        @return: L{_listTestHelper}
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_ftp.py