public void testStageGroupProperties() throws Exception {
MongoConnector mdc = mongoConnectorResource.getConnector();
Pipeline p = new Pipeline();
StageGroup singleGroup = new StageGroup("singleStage");
StageGroup multiGroup = new StageGroup("multi");
Stage single = new Stage("singleStage", new DatabaseFile());
Stage multi1 = new Stage("multi1", new DatabaseFile());
Stage multi2 = new Stage("multi2", new DatabaseFile());
multiGroup.addStage(multi1);
multiGroup.addStage(multi2);
singleGroup.addStage(single);
p.addGroup(multiGroup);