Adding validation for uniqueness of service_id X date in calendar_dates

python/test/testtransitfeed.py

 #!/usr/bin/python2.5
 
 # Copyright (C) 2007 Google Inc.
 #
 # 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
 #
@@ skipping 3196 matching lines @@
 
 
 class OnlyCalendarDatesTestCase(LoadTestCase):
   def runTest(self):
     self.Load('only_calendar_dates'),
     self.problems.AssertNoMoreExceptions()
 
 
 class DuplicateServiceIdDateWarningTestCase(MemoryZipTestCase):
   def runTest(self):
-    # Two lines with the same value of service_id and date.A badly formatted end_date used to generate an InvalidValue report from
+    # Two lines with the same value of service_id and date.
     # Test for the warning.
     self.zip.writestr(
         'calendar_dates.txt',
         'service_id,date,exception_type\n'
         'FULLW,20100604,1\n'
         'FULLW,20100604,2\n')
     schedule = self.loader.Load()
     e = self.problems.PopException('DuplicateID')
     self.assertEquals('(service_id, date)', e.column_name)
     self.assertEquals('(FULLW, 20100604)', e.value)
@@ skipping 1168 matching lines @@
     stoptimes = self.trip1.GetStopTimes()
     for stoptimes_clone in stoptimes_list:
       self.assertEqual(len(stoptimes_clone), len(stoptimes))
       for st_clone, st in zip(stoptimes_clone, stoptimes):
         for name in st.__slots__:
           if name not in ('arrival_secs', 'departure_secs'):
             self.assertEqual(getattr(st, name), getattr(st_clone, name))
 
 if __name__ == '__main__':
   unittest.main()