test_transformers.py 文件源码

def test_decode_base85(self):
        if sys.version_info.major != 3 or \
                sys.version_info.minor < 4:
            self.fail('Base85 support not available for the current Python version!')
        data_bytes = self._random_bytes()
        encoded_bytes = base64.b85encode(data_bytes)
        result = self._transformer.decode('base85', encoded_bytes)
        self.assertIsInstance(result, tuple)
        self.assertIsNone(result[1]), 'An error occurred during Base85 decoding'
        self.assertIsInstance(result[0], bytes,
            'Base85 decoding result should be bytes or bytearray, ' \
            'got %s instead' % type(result[0]))
        self.assertEqual(data_bytes, result[0])
        data_str = self._random_str()
        self.assertRaises(TypeError, functools.partial(
            self._transformer.decode, 'base85', data_str),
                        'Unexpected exception raised')