diff --git a/features/test/send_notifications_test.py b/features/test/send_notifications_test.py
new file mode 100644
index 0000000..435a67d
--- /dev/null
+++ b/features/test/send_notifications_test.py
@@ -0,0 +1,141 @@
+# 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 or at
+# https://developers.google.com/open-source/licenses/bsd
+
+"""Tests for prepareandsend.py"""
+from __future__ import print_function
+from __future__ import division
+from __future__ import absolute_import
+
+import mock
+import unittest
+import urlparse
+
+from features import send_notifications
+from framework import urls
+from tracker import tracker_bizobj
+
+
+class SendNotificationTest(unittest.TestCase):
+
+  def _get_filtered_task_call_args(self, create_task_mock, relative_uri):
+    return [
+        (args, _kwargs)
+        for (args, _kwargs) in create_task_mock.call_args_list
+        if args[0]['app_engine_http_request']['relative_uri'].startswith(
+            relative_uri)
+    ]
+
+  def _get_create_task_path_and_params(self, call):
+    (args, _kwargs) = call
+    path = args[0]['app_engine_http_request']['relative_uri']
+    encoded_params = args[0]['app_engine_http_request']['body']
+    params = {
+        k: v[0] for k, v in urlparse.parse_qs(encoded_params, True).items()
+    }
+    return path, params
+
+  @mock.patch('framework.cloud_tasks_helpers.create_task')
+  def testPrepareAndSendIssueChangeNotification(self, create_task_mock):
+    send_notifications.PrepareAndSendIssueChangeNotification(
+        issue_id=78901,
+        hostport='testbed-test.appspotmail.com',
+        commenter_id=1,
+        old_owner_id=2,
+        send_email=True)
+
+    call_args_list = self._get_filtered_task_call_args(
+        create_task_mock, urls.NOTIFY_ISSUE_CHANGE_TASK + '.do')
+    self.assertEqual(1, len(call_args_list))
+
+  @mock.patch('framework.cloud_tasks_helpers.create_task')
+  def testPrepareAndSendIssueBlockingNotification(self, create_task_mock):
+    send_notifications.PrepareAndSendIssueBlockingNotification(
+        issue_id=78901,
+        hostport='testbed-test.appspotmail.com',
+        delta_blocker_iids=[],
+        commenter_id=1,
+        send_email=True)
+
+    call_args_list = self._get_filtered_task_call_args(
+        create_task_mock, urls.NOTIFY_BLOCKING_CHANGE_TASK + '.do')
+    self.assertEqual(0, len(call_args_list))
+
+    send_notifications.PrepareAndSendIssueBlockingNotification(
+        issue_id=78901,
+        hostport='testbed-test.appspotmail.com',
+        delta_blocker_iids=[2],
+        commenter_id=1,
+        send_email=True)
+
+    call_args_list = self._get_filtered_task_call_args(
+        create_task_mock, urls.NOTIFY_BLOCKING_CHANGE_TASK + '.do')
+    self.assertEqual(1, len(call_args_list))
+
+  @mock.patch('framework.cloud_tasks_helpers.create_task')
+  def testPrepareAndSendApprovalChangeNotification(self, create_task_mock):
+    send_notifications.PrepareAndSendApprovalChangeNotification(
+        78901, 3, 'testbed-test.appspotmail.com', 55)
+
+    call_args_list = self._get_filtered_task_call_args(
+        create_task_mock, urls.NOTIFY_APPROVAL_CHANGE_TASK + '.do')
+    self.assertEqual(1, len(call_args_list))
+
+  @mock.patch('framework.cloud_tasks_helpers.create_task')
+  def testSendIssueBulkChangeNotification_CommentOnly(self, create_task_mock):
+    send_notifications.SendIssueBulkChangeNotification(
+        issue_ids=[78901],
+        hostport='testbed-test.appspotmail.com',
+        old_owner_ids=[2],
+        comment_text='comment',
+        commenter_id=1,
+        amendments=[],
+        send_email=True,
+        users_by_id=2)
+
+    call_args_list = self._get_filtered_task_call_args(
+        create_task_mock, urls.NOTIFY_BULK_CHANGE_TASK + '.do')
+    self.assertEqual(1, len(call_args_list))
+    _path, params = self._get_create_task_path_and_params(call_args_list[0])
+    self.assertEqual(params['comment_text'], 'comment')
+    self.assertEqual(params['amendments'], '')
+
+  @mock.patch('framework.cloud_tasks_helpers.create_task')
+  def testSendIssueBulkChangeNotification_Normal(self, create_task_mock):
+    send_notifications.SendIssueBulkChangeNotification(
+        issue_ids=[78901],
+        hostport='testbed-test.appspotmail.com',
+        old_owner_ids=[2],
+        comment_text='comment',
+        commenter_id=1,
+        amendments=[
+            tracker_bizobj.MakeStatusAmendment('New', 'Old'),
+            tracker_bizobj.MakeLabelsAmendment(['Added'], ['Removed']),
+            tracker_bizobj.MakeStatusAmendment('New', 'Old'),
+            ],
+        send_email=True,
+        users_by_id=2)
+
+    call_args_list = self._get_filtered_task_call_args(
+        create_task_mock, urls.NOTIFY_BULK_CHANGE_TASK + '.do')
+    self.assertEqual(1, len(call_args_list))
+    _path, params = self._get_create_task_path_and_params(call_args_list[0])
+    self.assertEqual(params['comment_text'], 'comment')
+    self.assertEqual(
+        params['amendments'].split('\n'),
+        ['    Status: New', '    Labels: -Removed Added'])
+
+  @mock.patch('framework.cloud_tasks_helpers.create_task')
+  def testPrepareAndSendDeletedFilterRulesNotifications(self, create_task_mock):
+    filter_rule_strs = ['if yellow make orange', 'if orange make blue']
+    send_notifications.PrepareAndSendDeletedFilterRulesNotification(
+        789, 'testbed-test.appspotmail.com', filter_rule_strs)
+
+    call_args_list = self._get_filtered_task_call_args(
+        create_task_mock, urls.NOTIFY_RULES_DELETED_TASK + '.do')
+    self.assertEqual(1, len(call_args_list))
+    _path, params = self._get_create_task_path_and_params(call_args_list[0])
+    self.assertEqual(params['project_id'], '789')
+    self.assertEqual(
+        params['filter_rules'], 'if yellow make orange,if orange make blue')