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# 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
import _test_utils
import brotli
class TestCompress(_test_utils.TestCase):
def _check_decompression(self, test_data, **kwargs):
# Write decompression to temp file and verify it matches the original.
temp_uncompressed = _test_utils.get_temp_uncompressed_name(test_data)
temp_compressed = _test_utils.get_temp_compressed_name(test_data)
original = test_data
with open(temp_uncompressed, 'wb') as out_file:
with open(temp_compressed, 'rb') as in_file:
out_file.write(brotli.decompress(in_file.read(), **kwargs))
self.assertFilesMatch(temp_uncompressed, original)
def _compress(self, test_data, **kwargs):
temp_compressed = _test_utils.get_temp_compressed_name(test_data)
with open(temp_compressed, 'wb') as out_file:
with open(test_data, 'rb') as in_file:
out_file.write(brotli.compress(in_file.read(), **kwargs))
def _test_compress_quality_1(self, test_data):
self._compress(test_data, quality=1)
self._check_decompression(test_data)
def _test_compress_quality_6(self, test_data):
self._compress(test_data, quality=6)
self._check_decompression(test_data)
def _test_compress_quality_9(self, test_data):
self._compress(test_data, quality=9)
self._check_decompression(test_data)
def _test_compress_quality_11(self, test_data):
self._compress(test_data, quality=11)
self._check_decompression(test_data)
def _test_compress_quality_1_lgwin_10(self, test_data):
self._compress(test_data, quality=1, lgwin=10)
self._check_decompression(test_data)
def _test_compress_quality_6_lgwin_15(self, test_data):
self._compress(test_data, quality=6, lgwin=15)
self._check_decompression(test_data)
def _test_compress_quality_9_lgwin_20(self, test_data):
self._compress(test_data, quality=9, lgwin=20)
self._check_decompression(test_data)
def _test_compress_quality_11_lgwin_24(self, test_data):
self._compress(test_data, quality=11, lgwin=24)
self._check_decompression(test_data)
def _test_compress_quality_1_custom_dictionary(self, test_data):
with open(test_data, 'rb') as in_file:
dictionary = in_file.read()
self._compress(test_data, quality=1, dictionary=dictionary)
self._check_decompression(test_data, dictionary=dictionary)
def _test_compress_quality_6_custom_dictionary(self, test_data):
with open(test_data, 'rb') as in_file:
dictionary = in_file.read()
self._compress(test_data, quality=6, dictionary=dictionary)
self._check_decompression(test_data, dictionary=dictionary)
def _test_compress_quality_9_custom_dictionary(self, test_data):
with open(test_data, 'rb') as in_file:
dictionary = in_file.read()
self._compress(test_data, quality=9, dictionary=dictionary)
self._check_decompression(test_data, dictionary=dictionary)
def _test_compress_quality_11_custom_dictionary(self, test_data):
with open(test_data, 'rb') as in_file:
dictionary = in_file.read()
self._compress(test_data, quality=11, dictionary=dictionary)
self._check_decompression(test_data, dictionary=dictionary)
def _test_compress_quality_1_lgwin_10_custom_dictionary(self, test_data):
with open(test_data, 'rb') as in_file:
dictionary = in_file.read()
self._compress(test_data, quality=1, lgwin=10, dictionary=dictionary)
self._check_decompression(test_data, dictionary=dictionary)
def _test_compress_quality_6_lgwin_15_custom_dictionary(self, test_data):
with open(test_data, 'rb') as in_file:
dictionary = in_file.read()
self._compress(test_data, quality=6, lgwin=15, dictionary=dictionary)
self._check_decompression(test_data, dictionary=dictionary)
def _test_compress_quality_9_lgwin_20_custom_dictionary(self, test_data):
with open(test_data, 'rb') as in_file:
dictionary = in_file.read()
self._compress(test_data, quality=9, lgwin=20, dictionary=dictionary)
self._check_decompression(test_data, dictionary=dictionary)
def _test_compress_quality_11_lgwin_24_custom_dictionary(self, test_data):
with open(test_data, 'rb') as in_file:
dictionary = in_file.read()
self._compress(test_data, quality=11, lgwin=24, dictionary=dictionary)
self._check_decompression(test_data, dictionary=dictionary)
_test_utils.generate_test_methods(TestCompress)
if __name__ == '__main__':
unittest.main()
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