def test_read_instance_metadata_success(self):
self.mox.StubOutWithMock(ovz_utils.context, 'get_admin_context')
ovz_utils.context.get_admin_context().AndReturn(fakes.ADMINCONTEXT)
self.mox.StubOutWithMock(ovz_utils.conductor, 'instance_get')
ovz_utils.conductor.instance_get(
fakes.ADMINCONTEXT, fakes.INSTANCE['id']).AndReturn(fakes.INSTANCE)
self.mox.ReplayAll()
meta = ovz_utils.read_instance_metadata(fakes.INSTANCE['id'])
self.assertTrue(isinstance(meta, dict))
self.assertEqual(meta[fakes.METAKEY], fakes.METAVALUE)
def test_read_instance_metadata_dberror(self):
self.mox.StubOutWithMock(ovz_utils.context, 'get_admin_context')
ovz_utils.context.get_admin_context().AndReturn(fakes.ADMINCONTEXT)
self.mox.StubOutWithMock(ovz_utils.conductor, 'instance_get')
ovz_utils.conductor.instance_get(
fakes.ADMINCONTEXT, fakes.INSTANCE['id']).AndRaise(
exception.InstanceNotFound(fakes.ERRORMSG))
self.mox.ReplayAll()
meta = ovz_utils.read_instance_metadata(fakes.INSTANCE['id'])
self.assertTrue(isinstance(meta, dict))
self.assertTrue(len(meta) == 0)
def _get_instance_tc_id(self):
"""
Look up instance metadata in the db and see if there is already
a tc_id for the instance
"""
instance_metadata = ovz_utils.read_instance_metadata(
self.instance['id'])
LOG.debug(_('Instances metadata: %s') % instance_metadata)
if instance_metadata:
tc_id = instance_metadata.get('tc_id')
LOG.debug(
_('TC id for instance %(instance_id)s is %(tc_id)s') %
{'instance_id': self.instance['id'], 'tc_id': tc_id})
return tc_id
