brotli/python/tests/decompress_test.py
Justin Ridgewell 5805f99a53 Ensure decompression consumes all input (#730)
* Ensure decompression consumes all input

If not, it's a corrupt stream.

* Use byte strings
2018-11-12 10:36:00 +01:00

43 lines
1.3 KiB
Python

# Copyright 2016 The Brotli Authors. All rights reserved.
#
# Distributed under MIT license.
# See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
import unittest
from . import _test_utils
import brotli
def _get_original_name(test_data):
return test_data.split('.compressed')[0]
class TestDecompress(_test_utils.TestCase):
def _check_decompression(self, test_data):
# Verify decompression matches the original.
temp_uncompressed = _test_utils.get_temp_uncompressed_name(test_data)
original = _get_original_name(test_data)
self.assertFilesMatch(temp_uncompressed, original)
def _decompress(self, test_data):
temp_uncompressed = _test_utils.get_temp_uncompressed_name(test_data)
with open(temp_uncompressed, 'wb') as out_file:
with open(test_data, 'rb') as in_file:
out_file.write(brotli.decompress(in_file.read()))
def _test_decompress(self, test_data):
self._decompress(test_data)
self._check_decompression(test_data)
def test_garbage_appended(self):
with self.assertRaises(brotli.error):
brotli.decompress(brotli.compress(b'a') + b'a')
_test_utils.generate_test_methods(TestDecompress, for_decompression=True)
if __name__ == '__main__':
unittest.main()