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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 subprocess
import unittest
from . import _test_utils
import brotli
PYTHON = _test_utils.PYTHON
BRO = _test_utils.BRO
TEST_ENV = _test_utils.TEST_ENV
def _get_original_name(test_data):
return test_data.split('.compressed')[0]
class TestBroDecompress(_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_file(self, test_data):
temp_uncompressed = _test_utils.get_temp_uncompressed_name(test_data)
args = [PYTHON, BRO, '-f', '-d', '-i', test_data, '-o',
temp_uncompressed]
subprocess.check_call(args, env=TEST_ENV)
def _decompress_pipe(self, test_data):
temp_uncompressed = _test_utils.get_temp_uncompressed_name(test_data)
args = [PYTHON, BRO, '-d']
with open(temp_uncompressed, 'wb') as out_file:
with open(test_data, 'rb') as in_file:
subprocess.check_call(
args, stdin=in_file, stdout=out_file, env=TEST_ENV)
def _test_decompress_file(self, test_data):
self._decompress_file(test_data)
self._check_decompression(test_data)
def _test_decompress_pipe(self, test_data):
self._decompress_pipe(test_data)
self._check_decompression(test_data)
_test_utils.generate_test_methods(TestBroDecompress, for_decompression=True)
class TestBroCompress(_test_utils.TestCase):
VARIANTS = {'quality': (1, 6, 9, 11), 'lgwin': (10, 15, 20, 24)}
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
args = [PYTHON, BRO, '-f', '-d']
args.extend(['-i', temp_compressed, '-o', temp_uncompressed])
subprocess.check_call(args, env=TEST_ENV)
self.assertFilesMatch(temp_uncompressed, original)
def _compress_file(self, test_data, **kwargs):
temp_compressed = _test_utils.get_temp_compressed_name(test_data)
args = [PYTHON, BRO, '-f']
if 'quality' in kwargs:
args.extend(['-q', str(kwargs['quality'])])
if 'lgwin' in kwargs:
args.extend(['--lgwin', str(kwargs['lgwin'])])
args.extend(['-i', test_data, '-o', temp_compressed])
subprocess.check_call(args, env=TEST_ENV)
def _compress_pipe(self, test_data, **kwargs):
temp_compressed = _test_utils.get_temp_compressed_name(test_data)
args = [PYTHON, BRO]
if 'quality' in kwargs:
args.extend(['-q', str(kwargs['quality'])])
if 'lgwin' in kwargs:
args.extend(['--lgwin', str(kwargs['lgwin'])])
with open(temp_compressed, 'wb') as out_file:
with open(test_data, 'rb') as in_file:
subprocess.check_call(
args, stdin=in_file, stdout=out_file, env=TEST_ENV)
def _test_compress_file(self, test_data, **kwargs):
self._compress_file(test_data, **kwargs)
self._check_decompression(test_data)
def _test_compress_pipe(self, test_data, **kwargs):
self._compress_pipe(test_data, **kwargs)
self._check_decompression(test_data)
_test_utils.generate_test_methods(
TestBroCompress, variants=TestBroCompress.VARIANTS)
if __name__ == '__main__':
unittest.main()
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