test_get_service_by_host_name is racy

This racy test breaks if the timestamps on the service list has changed:

2013-07-26 18:00:36.696 |
2013-07-26 18:00:36.697 | ======================================================================
2013-07-26 18:00:36.697 | FAIL: tempest.api.compute.admin.test_services.ServicesAdminTestJSON.test_get_service_by_host_name[gate]
2013-07-26 18:00:36.698 | ----------------------------------------------------------------------
2013-07-26 18:00:36.734 | _StringException: Traceback (most recent call last):
2013-07-26 18:00:36.734 | File "/opt/stack/new/tempest/tempest/api/compute/admin/test_services.py", line 67, in test_get_service_by_host_name
2013-07-26 18:00:36.734 | self.assertEqual(services_on_host, services)
2013-07-26 18:00:36.734 | File "/usr/local/lib/python2.7/dist-packages/testtools/testcase.py", line 322, in assertEqual
2013-07-26 18:00:36.734 | self.assertThat(observed, matcher, message)
2013-07-26 18:00:36.734 | File "/usr/local/lib/python2.7/dist-packages/testtools/testcase.py", line 417, in assertThat
2013-07-26 18:00:36.734 | raise MismatchError(matchee, matcher, mismatch, verbose)
2013-07-26 18:00:36.734 | MismatchError: !=:
2013-07-26 18:00:36.735 | reference = [{u'binary': u'nova-conductor',
2013-07-26 18:00:36.735 | u'disabled_reason': None,
2013-07-26 18:00:36.735 | u'host': u'devstack-1374858507',
2013-07-26 18:00:36.735 | u'state': u'up',
2013-07-26 18:00:36.735 | u'status': u'enabled',
2013-07-26 18:00:36.735 | u'updated_at': u'2013-07-26T17:23:42.854890',
2013-07-26 18:00:36.735 | u'zone': u'internal'},
2013-07-26 18:00:36.735 | {u'binary': u'nova-compute',
2013-07-26 18:00:36.735 | u'disabled_reason': None,
2013-07-26 18:00:36.735 | u'host': u'devstack-1374858507',
2013-07-26 18:00:36.735 | u'state': u'up',
2013-07-26 18:00:36.735 | u'status': u'enabled',
2013-07-26 18:00:36.735 | u'updated_at': u'2013-07-26T17:23:43.126240',
2013-07-26 18:00:36.735 | u'zone': u'nova'},
2013-07-26 18:00:36.735 | {u'binary': u'nova-cert',
2013-07-26 18:00:36.735 | u'disabled_reason': None,
2013-07-26 18:00:36.736 | u'host': u'devstack-1374858507',
2013-07-26 18:00:36.736 | u'state': u'up',
2013-07-26 18:00:36.736 | u'status': u'enabled',
2013-07-26 18:00:36.736 | u'updated_at': u'2013-07-26T17:23:43.335187',
2013-07-26 18:00:36.736 | u'zone': u'internal'},
2013-07-26 18:00:36.736 | {u'binary': u'nova-scheduler',
2013-07-26 18:00:36.736 | u'disabled_reason': None,
2013-07-26 18:00:36.736 | u'host': u'devstack-1374858507',
2013-07-26 18:00:36.736 | u'state': u'up',
2013-07-26 18:00:36.736 | u'status': u'enabled',
2013-07-26 18:00:36.736 | u'updated_at': u'2013-07-26T17:23:43.353705',
2013-07-26 18:00:36.736 | u'zone': u'internal'},
2013-07-26 18:00:36.736 | {u'binary': u'nova-network',
2013-07-26 18:00:36.736 | u'disabled_reason': None,
2013-07-26 18:00:36.736 | u'host': u'devstack-1374858507',
2013-07-26 18:00:36.736 | u'state': u'up',
2013-07-26 18:00:36.737 | u'status': u'enabled',
2013-07-26 18:00:36.737 | u'updated_at': u'2013-07-26T17:23:43.805627',
2013-07-26 18:00:36.737 | u'zone': u'internal'}]
2013-07-26 18:00:36.737 | actual = [{u'binary': u'nova-compute',
2013-07-26 18:00:36.737 | u'disabled_reason': None,
2013-07-26 18:00:36.737 | u'host': u'devstack-1374858507',
2013-07-26 18:00:36.737 | u'state': u'up',
2013-07-26 18:00:36.737 | u'status': u'enabled',
2013-07-26 18:00:36.737 | u'updated_at': u'2013-07-26T17:23:43.126240',
2013-07-26 18:00:36.737 | u'zone': u'nova'},
2013-07-26 18:00:36.737 | {u'binary': u'nova-cert',
2013-07-26 18:00:36.737 | u'disabled_reason': None,
2013-07-26 18:00:36.737 | u'host': u'devstack-1374858507',
2013-07-26 18:00:36.737 | u'state': u'up',
2013-07-26 18:00:36.737 | u'status': u'enabled',
2013-07-26 18:00:36.738 | u'updated_at': u'2013-07-26T17:23:43.335187',
2013-07-26 18:00:36.738 | u'zone': u'internal'},
2013-07-26 18:00:36.738 | {u'binary': u'nova-scheduler',
2013-07-26 18:00:36.738 | u'disabled_reason': None,
2013-07-26 18:00:36.738 | u'host': u'devstack-1374858507',
2013-07-26 18:00:36.738 | u'state': u'up',
2013-07-26 18:00:36.738 | u'status': u'enabled',
2013-07-26 18:00:36.738 | u'updated_at': u'2013-07-26T17:23:43.353705',
2013-07-26 18:00:36.738 | u'zone': u'internal'},
2013-07-26 18:00:36.738 | {u'binary': u'nova-network',
2013-07-26 18:00:36.738 | u'disabled_reason': None,
2013-07-26 18:00:36.738 | u'host': u'devstack-1374858507',
2013-07-26 18:00:36.738 | u'state': u'up',
2013-07-26 18:00:36.738 | u'status': u'enabled',
2013-07-26 18:00:36.738 | u'updated_at': u'2013-07-26T17:23:43.805627',
2013-07-26 18:00:36.739 | u'zone': u'internal'},
2013-07-26 18:00:36.739 | {u'binary': u'nova-conductor',
2013-07-26 18:00:36.739 | u'disabled_reason': None,
2013-07-26 18:00:36.739 | u'host': u'devstack-1374858507',
2013-07-26 18:00:36.739 | u'state': u'up',
2013-07-26 18:00:36.739 | u'status': u'enabled',
2013-07-26 18:00:36.739 | u'updated_at': u'2013-07-26T17:23:52.855895',
2013-07-26 18:00:36.739 | u'zone': u'internal'}]
2013-07-26 18:00:36.739 |
2013-07-26 18:00:36.739 | -------------------- >> begin captured logging << --------------------