Transient test failures: test_service.RemoteUserTest

The fix for bug 1045962 took an initial stab at fixing transient test failures by drastically reducing their frequency, but they still occur (by simply truncating timestamps before comparing them).

However, several more tests have been introduced in test_service which exhibit transient failures, thus increasing the likelihood that we see failures.

For example:

15:04:12 ======================================================================
15:04:12 FAIL: test_scoped_remote_authn (test_service.RemoteUserTest)
15:04:12 ----------------------------------------------------------------------
15:04:12 Traceback (most recent call last):
15:04:12 File "/home/jenkins/workspace/gate-keystone-python26/tests/test_service.py", line 124, in test_scoped_remote_authn
15:04:12 self.assertEqualTokens(local_token, remote_token)
15:04:12 File "/home/jenkins/workspace/gate-keystone-python26/tests/test_service.py", line 99, in assertEqualTokens
15:04:12 return self.assertDictEqual(normalize(a), normalize(b))
15:04:12 AssertionError: {'access': {'token': {'issued_at': '15:04:0', 'expires': '2012-11-10T15:04:', 'i [truncated]... != {'access': {'token': {'issued_at': '15:04:1', 'expires': '2012-11-10T15:04:', 'i [truncated]...
15:04:12 Diff is 1863 characters long. Set self.maxDiff to None to see it.
15:04:12 """Fail immediately, with the given message."""
15:04:12 >> raise self.failureException("{'access': {'token': {'issued_at': '15:04:0', 'expires': '2012-11-10T15:04:', 'i [truncated]... != {'access': {'token': {'issued_at': '15:04:1', 'expires': '2012-11-10T15:04:', 'i [truncated]...\nDiff is 1863 characters long. Set self.maxDiff to None to see it.")

Source: http://logs.openstack.org/15724/3/check/gate-keystone-python26/1474/console.html