[Findit] Implementing swarming task error detection

appengine/findit/waterfall/test/trigger_flake_swarming_task_pipeline_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 model.flake.flake_swarming_task import FlakeSwarmingTask
 from waterfall.test import wf_testcase
 from waterfall.trigger_flake_swarming_task_pipeline import (
     TriggerFlakeSwarmingTaskPipeline)
 
 
 class TriggerFlakeSwarmingTaskPipelineTest(wf_testcase.WaterfallTestCase):
 
   def testGetArgs(self):
     master_name = 'm'
     builder_name = 'b'
     build_number = 123
     step_name = 's'
     tests = ['t']
-
     self.assertEqual(
         (master_name, builder_name, build_number, step_name, tests[0]),
         TriggerFlakeSwarmingTaskPipeline()._GetArgs(
             master_name, builder_name, build_number, step_name, tests))
 
   def testGetSwarmingTask(self):
     master_name = 'm'
     builder_name = 'b'
     build_number = 123
     step_name = 's'
     test_name = 't'
 
     FlakeSwarmingTask.Create(
         master_name, builder_name, build_number, step_name, test_name).put()
 
     task = TriggerFlakeSwarmingTaskPipeline()._GetSwarmingTask(
         master_name, builder_name, build_number, step_name, test_name)
-
     self.assertEqual(master_name, task.master_name)
     self.assertEqual(builder_name, task.builder_name)
     self.assertEqual(build_number, task.build_number)
     self.assertEqual(step_name, task.step_name)
     self.assertEqual(test_name, task.test_name)
 
   def testCreateSwarmingTask(self):
     master_name = 'm'
     builder_name = 'b'
     build_number = 123
     step_name = 's'
     test_name = 't'
 
     task = TriggerFlakeSwarmingTaskPipeline()._CreateSwarmingTask(
         master_name, builder_name, build_number, step_name, test_name)
     self.assertEqual(master_name, task.master_name)
     self.assertEqual(builder_name, task.builder_name)
     self.assertEqual(build_number, task.build_number)
     self.assertEqual(step_name, task.step_name)
     self.assertEqual(test_name, task.test_name)
 
   def testGetIterationsToRerun(self):
     expected_iterations = 50
     self.UpdateUnitTestConfigSettings(
         config_property='check_flake_settings',
         override_data={'iterations_to_rerun': expected_iterations})
     self.assertEqual(
         expected_iterations,
         TriggerFlakeSwarmingTaskPipeline()._GetIterationsToRerun())