Comment 4 for bug 1302784

I'm getting this as well, at least some of the time. I haven't seen it running tox / testr, but do see it just running nostests -- not sure why.

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ERROR: trove.tests.unittests.mgmt.test_models.TestNovaNotificationTransformer.test_tranformer_shutdown_instance
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_StringException: Traceback (most recent call last):
  File "/opt/stack/trove/trove/tests/unittests/mgmt/test_models.py", line 278, in test_tranformer_shutdown_instance
    None)
  File "/opt/stack/trove/trove/extensions/mgmt/instances/models.py", line 70, in __init__
    datastore_status)
  File "/opt/stack/trove/trove/instance/models.py", line 499, in __init__
    super(BaseInstance, self).__init__(context, db_info, datastore_status)
  File "/opt/stack/trove/trove/instance/models.py", line 160, in __init__
    load_by_uuid(self.db_info.datastore_version_id))
  File "/opt/stack/trove/trove/datastore/models.py", line 399, in load_by_uuid
    raise exception.DatastoreVersionNotFound(version=uuid)
DatastoreVersionNotFound: Datastore version 'b00000b0-00b0-0b00-00b0-000b000000bb' cannot be found.