@Test
public void invalidOcid() {

    assertFalse(OCID.isValid("ocid1.user.oc1."));
    assertFalse(OCID.isValid("ocid1.user.oc1.adsfasfsafdf"));
    assertFalse(OCID.isValid("ocid1.user.oc1.1354aasdf."));
    assertFalse(OCID.isValid("ocid1.user.oc1.1354aasdf.."));
}