addRelation(server, service, supportA1, "test:type=supportA1");
addRelation(server, service, supportA2, "test:type=supportA2");
addRelation(server, service, supportCX, "test:type=supportCX");
addRelation(server, service, supportC, "test:type=supportC");
RelationService rs = (RelationService) services.get(service);
rs.removeRelation("idcx");
result = rs.getAllRelationIds();
assertEquals(3, result.size());
assertEquals(true, result.contains("ida1"));
assertEquals(true, result.contains("ida2"));
assertEquals(true, result.contains("idc"));