private static FleetcontrollerConfig getFleetcontrollerConfig(ContentCluster cluster) {
        var builder = new FleetcontrollerConfig.Builder();
        cluster.getConfig(builder);
        cluster.getClusterControllerConfig().getConfig(builder);
        builder.cluster_name("unknown");
        builder.index(0);
        builder.zookeeper_server("unknown");
        return new FleetcontrollerConfig(builder);
    }
Unit tests for content search cluster.

@author geirst
config-model/src/test/java/com/yahoo/vespa/model/content/ContentSchemaClusterTest.java