Make backward-forward compatible version.

appengine/swarming/server/task_scheduler_test.py

 #!/usr/bin/env python
 # Copyright 2014 The LUCI Authors. All rights reserved.
 # Use of this source code is governed under the Apache License, Version 2.0
 # that can be found in the LICENSE file.
 
 import datetime
 import logging
 import os
 import random
 import sys
@@ skipping 94 matching lines @@
   def _gen_request(self, properties=None, **kwargs):
     """Creates a TaskRequest."""
     props = {
       'command': [u'command1'],
       'dimensions': {u'pool': u'default'},
       'env': {},
       'execution_timeout_secs': 24*60*60,
       'io_timeout_secs': None,
     }
     props.update(properties or {})
+    props['dimensions_dict'] = props.pop('dimensions')
     now = utils.utcnow()
     args = {
       'created_ts': now,
       'name': 'Request name',
       'priority': 50,
       'properties': task_request.TaskProperties(**props),
       'expiration_ts': now + datetime.timedelta(seconds=60),
       'tags': [u'tag:1'],
       'user': 'Jesus',
     }
@@ skipping 1678 matching lines @@
         (['1d69b9f088008911'], 0, 0),
         task_scheduler.cron_handle_bot_died('f.local'))
 
 
 if __name__ == '__main__':
   if '-v' in sys.argv:
     unittest.TestCase.maxDiff = None
   logging.basicConfig(
       level=logging.DEBUG if '-v' in sys.argv else logging.CRITICAL)
   unittest.main()