[Findit] Adding central config test class for unit tests

appengine/findit/handlers/test/handlers_util_test.py

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-from testing_utils import testing
-
 from handlers import handlers_util
+from model import wf_analysis_status
 from model.wf_analysis import WfAnalysis
-from model import wf_analysis_status
 from model.wf_swarming_task import WfSwarmingTask
 from model.wf_try_job import WfTryJob
-from waterfall import buildbot
-from waterfall import waterfall_config
+from waterfall.test import wf_testcase
 
 
-class HandlersUtilResultTest(testing.AppengineTestCase):
+class HandlersUtilResultTest(wf_testcase.WaterfallTestCase):
 
   def setUp(self):
     super(HandlersUtilResultTest, self).setUp()
     self.master_name = 'm'
     self.builder_name = 'b'
     self.build_number = 121
 
-    def MockedGetSwarmingSettings():
-      return {'server_host': 'chromium-swarm.appspot.com'}
-    self.mock(
-        waterfall_config, 'GetSwarmingSettings', MockedGetSwarmingSettings)
-
   def testGenerateSwarmingTasksDataNoAnalysis(self):
     data = handlers_util.GenerateSwarmingTasksData(
         self.master_name, self.builder_name, self.build_number)
 
     self.assertEqual({}, data)
 
   def testGenerateSwarmingTasksDataReturnEmptyIfNoFailureMap(self):
     WfAnalysis.Create(
         self.master_name, self.builder_name, self.build_number).put()
 
@@ skipping 654 matching lines @@
             'try_job_url': (
                 'http://build.chromium.org/p/tryserver.chromium.linux/'
                 'builders/linux_chromium_variable/builds/120'),
             'revision': 'rev0',
             'commit_position': '0',
             'review_url': 'url_0'
         }
     }
 
     self.assertEqual(expected_culprits_info, culprits_info)