testcase fail due to value is not match

[Dave Chen]

The testcase fail occasionally, since the value got from DB or cache is not always match with the sequence of when the value is created.

2015-11-25 22:03:50.819 | Captured traceback:
2015-11-25 22:03:50.819 | ~~~~~~~~~~~~~~~~~~~
2015-11-25 22:03:50.819 | Traceback (most recent call last):
2015-11-25 22:03:50.819 | File "keystone/tests/unit/core.py", line 205, in inner
2015-11-25 22:03:50.819 | return f(*args, **kwargs)
2015-11-25 22:03:50.819 | File "keystone/tests/unit/test_associate_project_endpoint_extension.py", line 319, in test_create_endpoint_project_association_invalidates_cache
2015-11-25 22:03:50.820 | self.assertEqual(self.endpoint_id, catalog[0]['endpoints'][0]['id'])
2015-11-25 22:03:50.820 | File "/home/jenkins/workspace/gate-keystone-python27/.tox/py27/local/lib/python2.7/site-packages/testtools/testcase.py", line 350, in assertEqual
2015-11-25 22:03:50.820 | self.assertThat(observed, matcher, message)
2015-11-25 22:03:50.820 | File "/home/jenkins/workspace/gate-keystone-python27/.tox/py27/local/lib/python2.7/site-packages/testtools/testcase.py", line 435, in assertThat
2015-11-25 22:03:50.820 | raise mismatch_error
2015-11-25 22:03:50.820 | testtools.matchers._impl.MismatchError: '4ab46d1c529448e0a83818993e6355d2' != u'76b8e0d840c6480a89200cd10dac3de3'

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/251060

[Boris Bobrov (bbobrov)]

Could you please post the full trace?

[Dave Chen (wei-d-chen)]

sure, pls see the updated stack trace.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/251060
Committed: https://git.openstack.org/cgit/openstack/keystone/commit/?id=b324e1ed972c6bfd4c3e2cc8bc0072c7ff0309fe
Submitter: Jenkins
Branch: master

commit b324e1ed972c6bfd4c3e2cc8bc0072c7ff0309fe
Author: Dave Chen <email address hidden>
Date: Sun Nov 29 00:13:07 2015 +0000

    Needn't care about the sequence for cache validation

    The testcases were added to check cache invalidation [1] but fail
    occasionally with the assertion where ordered sequence specific
    comparison is required, this is because the value fetched from DB
    or cache not always match with the sequence of when the value was
    created.

    Update the testcases to use unordered sequence specific comparison.

    [1] https://review.openstack.org/#/c/245633/

    Change-Id: Iffa3ccaa1b0a6627c34dc8902c507ce741442cc0
    Closes-Bug: #1520850

[Thierry Carrez (ttx)]

This issue was fixed in the openstack/keystone 9.0.0.0b1 development milestone.