@Test public void repeatNumberWithValidCheckDigit() {

    CitizenId cid;
    cid = new CitizenId("0000000000001");
    assertFalse("repeat number with valid check digit should be Invalid", cid.validate());
    cid = new CitizenId("1234123412340");
    assertFalse("repeat pattern number with valid check digit should be Invalid",
                cid.validate());
}