assertNotNull(WitnessServiceType.FILE_SERVER_WITNESS);
        assertNotNull(WitnessServiceType.SCALE_OUT_WITNESS);
        assertNotNull(WitnessServiceType.DFS_WITNESS);
    }

    @Test
    void testWitnessVersions() {
        assertEquals(2, WitnessVersion.values().length);

        WitnessVersion v1 = WitnessVersion.VERSION_1;
        WitnessVersion v2 = WitnessVersion.VERSION_2;