Add API for bootstrap and bot_code version

appengine/swarming/handlers_endpoints_test.py

 #!/usr/bin/env python
 # coding=utf-8
 # Copyright 2015 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 base64
 import datetime
 import json
 import logging
@@ skipping 10 matching lines @@
 import webtest
 
 from components import ereporter2
 from components import utils
 
 import handlers_bot
 import handlers_endpoints
 import swarming_rpcs
 
 from server import acl
+from server import bot_code
 from server import bot_management
 from server import config
 from server import large
 from server import task_pack
 from server import task_request
 from server import task_result
 
 
 def message_to_dict(rpc_message):
   return json.loads(protojson.encode_message(rpc_message))
@@ skipping 20 matching lines @@
     # Client API test cases run by default as user.
     self.set_as_user()
 
 
 class ServerApiTest(BaseTest):
   api_service_cls = handlers_endpoints.SwarmingServerService
 
   def test_details(self):
     """Asserts that server_details returns the correct version."""
     response = self.call_api('details')
-    self.assertEqual({'server_version': utils.get_app_version()}, response.json)
+    self.assertEqual({
+      'server_version': utils.get_app_version(),
+      'bot_version': bot_code.get_bot_version('https://testbed.example.com'),
+      }, response.json)
 
   def test_public_permissions(self):
     """Asserts that permissions respond correctly to an unauthed user."""
     self.set_as_anonymous()
     response = self.call_api('permissions')
     expected = {
         u'cancel_task': False,
         u'terminate_bot': False,
         u'delete_bot': False,
         u'get_configs': False,
@@ skipping 1921 matching lines @@
     self.assertEqual(expected, response.json)
 
 
 if __name__ == '__main__':
   if '-v' in sys.argv:
     unittest.TestCase.maxDiff = None
     logging.basicConfig(level=logging.DEBUG)
   else:
     logging.basicConfig(level=logging.CRITICAL)
   unittest.main()