public static TunnelId valueOf(String value) {
        return new TunnelId(value);
    }
@Test
    public void testConstruction() {
        final String tunnelIdValue = "7777";
        final TunnelId tunnelId = TunnelId.valueOf(tunnelIdValue);
        assertThat(tunnelId, is(notNullValue()));
        assertThat(tunnelId.id(), is(tunnelIdValue));
    }