swarming: mechanical changes to unit tests

appengine/swarming/handlers_test.py

Index: appengine/swarming/handlers_test.py
diff --git a/appengine/swarming/handlers_test.py b/appengine/swarming/handlers_test.py
index 5ea11eceb8e9bc953a88e43ab7b8228ce68f0aa3..9afd46a196d6b9937d43c3c1fa15991031d284af 100755
--- a/appengine/swarming/handlers_test.py
+++ b/appengine/swarming/handlers_test.py
@@ -20,6 +20,7 @@ import webtest
 import handlers_backend
 import handlers_frontend
 import template
+from components import utils
 from server import bot_code
 from server import bot_management
 from server import task_result
@@ -248,6 +249,14 @@ class BackendTest(AppTestBase):
         r.template for r in self.app.app.router.match_routes
     ]
 
+  def setUp(self):
+    super(BackendTest, self).setUp()
+    self._enqueue_task_orig = self.mock(
+        utils, 'enqueue_task', self._enqueue_task)
+
+  def _enqueue_task(self, **kwargs):
+    return self._enqueue_task_orig(use_dedicated_module=False, **kwargs)
+
   def testCronJobTasks(self):
     # Tests all the cron tasks are securely handled.
     cron_job_urls = [