[Findit] Fix bugs when pulling gtest result.

appengine/findit/waterfall/test/process_base_swarming_task_result_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.
 
 import datetime
 import mock
 
 from model import analysis_status
 from model.flake.flake_swarming_task import FlakeSwarmingTask
 from model.flake.master_flake_analysis import MasterFlakeAnalysis
@@ skipping 98 matching lines @@
         'completed_ts': '2016-02-10T18:33:09'
     },
     'task_id2': {
         'state': 'TIMED_OUT',
         'outputs_ref': None
     },
     'task_id3': {
         'state': 'COMPLETED',
         'exit_code': '2',  # Swarming task failed.
     },
+  'task_id4': {
+    'state': 'COMPLETED',
+    'exit_code': '1',
+  },
 }
 
 
 _EXPECTED_TESTS_STATUS = {
     'TestSuite1.test1': {
         'total_run': 2,
         'SUCCESS': 2
     },
     'TestSuite1.test2': {
         'total_run': 4,
@@ skipping 160 matching lines @@
 
     self.assertEqual(analysis_status.ERROR, task.status)
     self.assertEqual(
         task.error,
         {
             'code': swarming_util.TASK_FAILED,
             'message': swarming_util.EXIT_CODE_DESCRIPTIONS[
                 swarming_util.TASK_FAILED]
         })
 
+  def testMonitorSwarmingTaskWhereNoTaskOutputs(self):
+    task = WfSwarmingTask.Create(
+        self.master_name, self.builder_name,
+        self.build_number, self.step_name)
+    task.task_id = 'task_id4'
+    task.put()
+
+    pipeline = ProcessSwarmingTaskResultPipeline()
+    pipeline.run(
+        self.master_name, self.builder_name, self.build_number, self.step_name)
+
+    self.assertEqual(analysis_status.ERROR, task.status)
+    self.assertEqual(
+        task.error,
+        {
+            'code': swarming_util.NO_TASK_OUTPUTS,
+            'message': 'outputs_ref is None'
+        })
+
   def testProcessSwarmingTaskResultPipeline(self):
     # End to end test.
     self.mock(swarming_util, 'GetSwarmingTaskFailureLog',
               self._MockedGetSwarmingTaskFailureLog)
 
     task = WfSwarmingTask.Create(
         self.master_name, self.builder_name,
         self.build_number, self.step_name)
     task.task_id = 'task_id1'
     task.put()
@@ skipping 14 matching lines @@
     self.assertEqual(analysis_status.COMPLETED, task.status)
     self.assertEqual(_EXPECTED_TESTS_STATUS, task.tests_statuses)
     self.assertEqual(
         _EXPECTED_CLASSIFIED_TESTS, task.classified_tests)
     self.assertEqual(datetime.datetime(2016, 2, 10, 18, 32, 6, 538220),
                      task.created_time)
     self.assertEqual(datetime.datetime(2016, 2, 10, 18, 32, 9, 90550),
                      task.started_time)
     self.assertEqual(datetime.datetime(2016, 2, 10, 18, 33, 9),
                      task.completed_time)