protected boolean isClusterVersionUnknownOrGreaterOrEqual(Version version) {
        Version clusterVersion = getNodeEngine().getClusterService().getClusterVersion();
        return clusterVersion.isUnknownOrGreaterOrEqual(version);
    }
@Test
    public void testClusterVersion_isUnknownGreaterOrEqual_currentVersion() {
        assertTrue(object.isClusterVersionUnknownOrGreaterOrEqual(CURRENT_CLUSTER_VERSION));
    }