@Test
  public void test2() {

    assertFalse(validator51.isValid("0001156074"));
    assertFalse(validator51.isValid("0001156133"));
    assertFalse(validator51.isValid("0000156072"));
    assertFalse(validator51.isValid("0199100001"));
    assertFalse(validator51.isValid("2599100006"));
    assertFalse(validator51.isValid("0099345670"));
    assertFalse(validator51.isValid("0099345675"));
    assertFalse(validator51.isValid("0099100114"));
    assertFalse(validator51.isValid("0199100043"));
  }
  @Test
  public void test1() {

    assertTrue(validator51.isValid("0001156071"));
    assertTrue(validator51.isValid("0001156136"));
    assertTrue(validator51.isValid("0000156078"));
    assertTrue(validator51.isValid("0000156071"));
    assertTrue(validator51.isValid("0199100002"));
    assertTrue(validator51.isValid("0099100010"));
    assertTrue(validator51.isValid("2599100002"));
    assertTrue(validator51.isValid("0199100004"));
    assertTrue(validator51.isValid("2599100003"));
    assertTrue(validator51.isValid("3199204090"));
  }