[Findit] Fix redirect bug and update template for waterfall/culprit.

appengine/findit/waterfall/test/build_util_test.py

 # Copyright 2015 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
 
 from testing_utils import testing
 
 from model.wf_build import WfBuild
 from waterfall import build_util
@@ skipping 148 matching lines @@
 
     self.UpdateUnitTestConfigSettings(
         'download_build_data_settings', {'use_chrome_build_extract': False})
     self._MockUrlfetchWithBuildData(master_name, builder_name, build_number,
                                     build_data='Test get build data')
 
     build_util.DownloadBuildData(master_name, builder_name, build_number)
 
     self.assertEqual(build.data_source, build_util.BUILDBOT_MASTER)
     self.assertEqual(build.data, 'Test get build data from build master')
+
+  def testGetBuildEndTime(self):
+    cases = {
+        'null': None,
+        '1467740016': datetime.datetime(2016, 7, 5, 17, 33, 36),
+    }
+    for end_time, expected_time in cases.iteritems():
+      master_name = 'm'
+      builder_name = 'b'
+      build_number = 123
+      build = WfBuild.Create(master_name, builder_name, build_number)
+      build.data = '{"times": [1467738821, %s]}' % end_time
+      build.completed = True
+      build.last_crawled_time = self._TimeBeforeNowBySeconds(10)
+      build.put()
+
+      self.assertEqual(expected_time,
+                       build_util.GetBuildEndTime(
+                           master_name, builder_name, build_number))