new_contents: #!/usr/bin/env python
  
  """
  <Program Name>
    test_exceptions.py
  
  <Author>
    Vladimir Diaz
  
  <Started>
    December 20, 2016.
  
  <Copyright>
    See LICENSE for licensing information.
  
  <Purpose>
    Test cases for exceptions.py (mainly the exceptions defined there).
  """
  
  # Help with Python 3 compatibility, where the print statement is a function, an
  # implicit relative import is invalid, and the '/' operator performs true
  # division.  Example:  print 'hello world' raises a 'SyntaxError' exception.
  from __future__ import print_function
  from __future__ import absolute_import
  from __future__ import division
  from __future__ import unicode_literals
  
  import unittest
  import logging
  
  import securesystemslib.exceptions
  
  logger = logging.getLogger('test_exceptions')
  
  class TestExceptions(unittest.TestCase):
    def setUp(self):
      pass
  
  
    def tearDown(self):
      pass
  
  
    def test_bad_signature_error(self):
      bad_signature_error = securesystemslib.exceptions.BadSignatureError('bad sig')
      logger.error(bad_signature_error)
  
  
    def test_bad_hash_error(self):
      bad_hash_error = securesystemslib.exceptions.BadHashError('01234', '56789')
      logger.error(bad_hash_error)
  
  
    def test_invalid_metadata_json_error(self):
      format_error = securesystemslib.exceptions.FormatError('Improperly formatted JSON')
      invalid_metadata_json_error = securesystemslib.exceptions.InvalidMetadataJSONError(format_error)
      logger.error(invalid_metadata_json_error)
  
  
  
  # Run the unit tests.
  if __name__ == '__main__':
    unittest.main()
  
subject: Add test_exceptions.py