Kilo test error : Failed to import test module: heat.tests.test_engine_service

[Rico Lin]

when execute $tox -epy27 under stable/Kilo branch

FAIL: unittest2.loader._FailedTest.heat.tests.test_engine_service
tags: worker-3
----------------------------------------------------------------------
Traceback (most recent call last):
ImportError: Failed to import test module: heat.tests.test_engine_service
Traceback (most recent call last):
  File "/home/stack/develop/openstack/heat/heat2/.tox/py27/local/lib/python2.7/site-packages/unittest2/loader.py", line 456, in _find_test_path
    module = self._get_module_from_name(name)
  File "/home/stack/develop/openstack/heat/heat2/.tox/py27/local/lib/python2.7/site-packages/unittest2/loader.py", line 395, in _get_module_from_name
    __import__(name)
  File "heat/tests/test_engine_service.py", line 1747, in <module>
    class StackServiceTest(common.HeatTestCase):
  File "heat/tests/test_engine_service.py", line 3414, in StackServiceTest
    @mock.patch.object(service_objects.Stack, 'get_all')
AttributeError: 'module' object has no attribute 'Stack'

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/198195

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/198195
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=1b5ff072307d85bbe75d0942fcc23d64d1053c92
Submitter: Jenkins
Branch: stable/kilo

commit 1b5ff072307d85bbe75d0942fcc23d64d1053c92
Author: Rico Lin <email address hidden>
Date: Fri Jul 3 10:44:53 2015 +0800

    Failed to import test module in test

    Change-Id: I62c6c335d6c9600249fa6ea8eb9b5e74ecc11a36
    Closes-Bug: #1471062