ClusterManager clusterManager = getOsgiService(ClusterManager.class);
assertNotNull(clusterManager);
System.err.println(executeCommand("cluster:node-list"));
Node localNode = clusterManager.getNode();
Set<Node> nodes = clusterManager.listNodes();
assertTrue("There should be at least 2 cellar nodes running", 2 <= nodes.size());
System.err.println(executeCommand("cluster:group-list"));
System.err.println(executeCommand("cluster:group-set testgroup " + localNode.getId()));
System.err.println(executeCommand("cluster:group-list"));