1# Copyright 2016 The Brotli Authors. All rights reserved. 2# 3# Distributed under MIT license. 4# See file LICENSE for detail or copy at https://opensource.org/licenses/MIT 5 6import unittest 7 8from . import _test_utils 9import brotli 10 11 12class TestCompress(_test_utils.TestCase): 13 14 VARIANTS = {'quality': (1, 6, 9, 11), 'lgwin': (10, 15, 20, 24)} 15 16 def _check_decompression(self, test_data, **kwargs): 17 # Only dictionary is supported as a kwarg to brotli.decompress. 18 if 'dictionary' in kwargs: 19 kwargs = {'dictionary': kwargs['dictionary']} 20 else: 21 kwargs = {} 22 # Write decompression to temp file and verify it matches the original. 23 temp_uncompressed = _test_utils.get_temp_uncompressed_name(test_data) 24 temp_compressed = _test_utils.get_temp_compressed_name(test_data) 25 original = test_data 26 with open(temp_uncompressed, 'wb') as out_file: 27 with open(temp_compressed, 'rb') as in_file: 28 out_file.write(brotli.decompress(in_file.read(), **kwargs)) 29 self.assertFilesMatch(temp_uncompressed, original) 30 31 def _compress(self, test_data, **kwargs): 32 temp_compressed = _test_utils.get_temp_compressed_name(test_data) 33 with open(temp_compressed, 'wb') as out_file: 34 with open(test_data, 'rb') as in_file: 35 out_file.write(brotli.compress(in_file.read(), **kwargs)) 36 37 def _test_compress(self, test_data, **kwargs): 38 self._compress(test_data, **kwargs) 39 self._check_decompression(test_data, **kwargs) 40 41 def _test_compress_custom_dictionary(self, test_data, **kwargs): 42 with open(test_data, 'rb') as in_file: 43 dictionary = in_file.read() 44 kwargs['dictionary'] = dictionary 45 self._compress(test_data, **kwargs) 46 self._check_decompression(test_data, **kwargs) 47 48 49_test_utils.generate_test_methods(TestCompress, variants=TestCompress.VARIANTS) 50 51if __name__ == '__main__': 52 unittest.main() 53