new_contents: #!/usr/bin/env python
  # Copyright 2009 Google Inc. All Rights Reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """Tests for the config module."""
  
  __author__ = 'tstromberg@google.com (Thomas Stromberg)'
  
  import unittest
  import config
  
  class ConfigTest(unittest.TestCase):
    def testParseFullLine(self):
      line = '129.250.35.251=NTT (2)                               # y.ns.gin.ntt.net,39.569,-104.8582 (Englewood/CO/US)'
      expected = {'name': 'NTT (2)', 'service': 'NTT', 'ip': '129.250.35.251',
                  'lon': '-104.8582', 'instance': '2', 'country_code': 'US',
                  'lat': '39.569'}
      self.assertEquals(config._ParseServerLine(line), expected)
  
    def testOpenDNSLine(self):
      line = '208.67.220.220=OpenDNS                               # resolver2.opendns.com'
      expected = {'name': 'OpenDNS', 'service': 'OpenDNS', 'ip': '208.67.220.220',
                  'lon': None, 'instance': None, 'country_code': None,
                  'lat': None}
  
      self.assertEquals(config._ParseServerLine(line), expected)
  
    def testLineWithNoRegion(self):
      line = '4.2.2.2=Level/GTEI-2 (3)                             # vnsc-bak.sys.gtei.net,38.0,-97.0 (US) '
      expected = {'name': 'Level/GTEI-2 (3)', 'service': 'Level/GTEI-2',
                  'ip': '4.2.2.2', 'lon': '-97.0', 'instance': '3',
                  'country_code': 'US', 'lat': '38.0'}
      self.assertEquals(config._ParseServerLine(line), expected)
  
  if __name__ == '__main__':
    unittest.main()
  
subject: Add some tests for dns config parsing