'A ``SetNodeEraCommand`` results in the node\'s era being
updated.'

def test_set_node_era(self):

    node_uuid = uuid4()
    era = uuid4()
    d = self.client.callRemote(SetNodeEraCommand, node_uuid=unicode(node_uuid), era=unicode(era))
    self.successResultOf(d)
    self.assertEqual(DeploymentState(node_uuid_to_era={node_uuid: era}), self.control_amp_service.cluster_state.as_deployment())
