See: http://logs.openstack.org/69/49169/2/check/check-tempest-devstack-vm-full/473539f/console.html
2013-10-07 18:57:09.859 | ======================================================================
2013-10-07 18:57:09.859 | FAIL: tempest.api.compute.servers.test_list_servers_negative.ListServersNegativeTestJSON.test_list_servers_by_changes_since[gate]
2013-10-07 18:57:09.860 | tempest.api.compute.servers.test_list_servers_negative.ListServersNegativeTestJSON.test_list_servers_by_changes_since[gate]
2013-10-07 18:57:09.860 | ----------------------------------------------------------------------
2013-10-07 18:57:09.860 | _StringException: Empty attachments:
2013-10-07 18:57:09.861 | stderr
2013-10-07 18:57:09.861 | stdout
2013-10-07 18:57:09.861 |
2013-10-07 18:57:09.862 | pythonlogging:'': {{{
2013-10-07 18:57:09.862 | 2013-10-07 18:38:33,059 Request: GET http://127.0.0.1:8774/v2/3b02395d4eec44958ffcc10ac2673fd2/servers?changes-since=2013-10-07T18%3A38%3A31.034080
2013-10-07 18:57:09.862 | 2013-10-07 18:38:33,490 Response Status: 200
2013-10-07 18:57:09.863 | 2013-10-07 18:38:33,490 Nova request id: req-906f2cf2-6508-4cd2-bf62-3595b18d223a
2013-10-07 18:57:09.863 | }}}
2013-10-07 18:57:09.863 |
2013-10-07 18:57:09.863 | Traceback (most recent call last):
2013-10-07 18:57:09.864 | File "tempest/api/compute/servers/test_list_servers_negative.py", line 191, in test_list_servers_by_changes_since
2013-10-07 18:57:09.864 | self.assertEqual(num_expected, len(body['servers']))
2013-10-07 18:57:09.864 | File "/usr/local/lib/python2.7/dist-packages/testtools/testcase.py", line 322, in assertEqual
2013-10-07 18:57:09.865 | self.assertThat(observed, matcher, message)
2013-10-07 18:57:09.865 | File "/usr/local/lib/python2.7/dist-packages/testtools/testcase.py", line 417, in assertThat
2013-10-07 18:57:09.865 | raise MismatchError(matchee, matcher, mismatch, verbose)
2013-10-07 18:57:09.865 | MismatchError: 3 != 2
Now we have additional debug message for this problem.
The debug message is the following:
MismatchError: 3 != 2: Number of servers 3 is wrong in [{'link': {'href': '<a href='http:// 127.0.0. 1:8774/ a6f85b737f9e47e 7ab7cebe30e0282 22/servers/ 6c5d0fa3- ae9a-4a94- b31f-ad3ca7d453 db'>http:// 127.0.0. 1:8774/ a6f85b737f9e47e 7ab7cebe30e0282 22/servers/ 6c5d0fa3- ae9a-4a94- b31f-ad3ca7d453 db</a>', 'rel': 'bookmark'}, 'name': 'ListServersNeg ativeTestXML- instance- tempest- 1601877588' , 'id': '6c5d0fa3- ae9a-4a94- b31f-ad3ca7d453 db'}, {'link': {'href': '<a href='http:// 127.0.0. 1:8774/ a6f85b737f9e47e 7ab7cebe30e0282 22/servers/ 4c613cc8- 6754-4f87- 91cf-4aa2f6828a 22'>http:// 127.0.0. 1:8774/ a6f85b737f9e47e 7ab7cebe30e0282 22/servers/ 4c613cc8- 6754-4f87- 91cf-4aa2f6828a 22</a>', 'rel': 'bookmark'}, 'name': 'ListServersNeg ativeTestXML- instance- tempest- 569720341' , 'id': '4c613cc8- 6754-4f87- 91cf-4aa2f6828a 22'}]