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  1. # Copyright 2018, Google Inc.
  2. # All rights reserved.
  3. #
  4. # Redistribution and use in source and binary forms, with or without
  5. # modification, are permitted provided that the following conditions are
  6. # met:
  7. #
  8. #     * Redistributions of source code must retain the above copyright
  9. # notice, this list of conditions and the following disclaimer.
  10. #     * Redistributions in binary form must reproduce the above
  11. # copyright notice, this list of conditions and the following disclaimer
  12. # in the documentation and/or other materials provided with the
  13. # distribution.
  14. #     * Neither the name of Google Inc. nor the names of its
  15. # contributors may be used to endorse or promote products derived from
  16. # this software without specific prior written permission.
  17. #
  18. # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19. # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20. # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21. # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22. # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23. # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24. # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25. # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26. # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27. # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28. # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29.  
  30. """Unit test utilities for gtest_json_output."""
  31.  
  32. import re
  33.  
  34.  
  35. def normalize(obj):
  36.   """Normalize output object.
  37.  
  38.  Args:
  39.     obj: Google Test's JSON output object to normalize.
  40.  
  41.  Returns:
  42.     Normalized output without any references to transient information that may
  43.     change from run to run.
  44.  """
  45.   def _normalize(key, value):
  46.     if key == 'time':
  47.       return re.sub(r'^\d+(\.\d+)?s$', '*', value)
  48.     elif key == 'timestamp':
  49.       return re.sub(r'^\d{4}-\d\d-\d\dT\d\d:\d\d:\d\dZ$', '*', value)
  50.     elif key == 'failure':
  51.       value = re.sub(r'^.*[/\\](.*:)\d+\n', '\\1*\n', value)
  52.       return re.sub(r'Stack trace:\n(.|\n)*', 'Stack trace:\n*', value)
  53.     else:
  54.       return normalize(value)
  55.   if isinstance(obj, dict):
  56.     return {k: _normalize(k, v) for k, v in obj.items()}
  57.   if isinstance(obj, list):
  58.     return [normalize(x) for x in obj]
  59.   else:
  60.     return obj
  61.