@Test
  public void incrementAccessionNumber() {
    String orgNumber = siteCode + getTwoDigitCurrentYear() + "011111";
    String nextNumber = siteCode + getTwoDigitCurrentYear() + "011112";

    assertEquals(nextNumber, siteYearValidator.incrementAccessionNumber(orgNumber));
  }
  @Test(expected = IllegalArgumentException.class)
  public void incrementAccessionNumberNoMoreNumbers() {
    String orgNumber = "31100" + getTwoDigitCurrentYear() + "999999";

    siteYearValidator.incrementAccessionNumber(orgNumber);
  }