kc3-lang/brotli/python/tests/bro_test.py

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• Hash : 36533a86
  Author :
  Date : 2023-01-16T18:04:35
  

  Internal change
  
  PiperOrigin-RevId: 502401179
  

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• python/tests/bro_test.py

• # 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
  
  BRO_ARGS = _test_utils.BRO_ARGS
  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 = BRO_ARGS + ['-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 = BRO_ARGS + ['-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 = BRO_ARGS + ['-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 = BRO_ARGS + ['-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 = BRO_ARGS
          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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