public static String createTravelDocumentSeed(MrzInfo info) {
        if (info.getDocumentNumber().length() != 9) {
            throw new VerificationException("Document number should have length of 9");
        }
        checkMrzDate(info.getDateOfBirth());
        checkMrzDate(info.getDateOfExpiry());

        StringBuilder sb = new StringBuilder(24);
        sb.append(info.getDocumentNumber()).append(calculateCheckDigit(info.getDocumentNumber()));
        sb.append(info.getDateOfBirth()).append(calculateCheckDigit(info.getDateOfBirth()));
        sb.append(info.getDateOfExpiry()).append(calculateCheckDigit(info.getDateOfExpiry()));
        return sb.toString();
    }
@Test
    public void createTravelDocumentSeedMrzPositive() {
        MrzUtils.createTravelDocumentSeed(new MrzInfo("SPECI2014", "SSSSSS", "SSSSSS"));
    }