@Test
 public void throwsExceptionGivenUnparseableExpirationDate() {
   try {
     boletoPayment.setExpirationDate("2016-32-32");
     System.out.println(boletoPayment.getExpirationDate().toString());
     fail("expected exception");
   } catch (RuntimeException e) {
   }
 }
 @Test
 public void typeIsBoletoTest() {
   assertEquals(KondutoPaymentType.BOLETO, boletoPayment.getType());
 }
 @Test
 public void isValidWithoutExpirationDate() {
   assertTrue(boletoPayment.isValid());
 }