@Test
 /** Tests the getters. */
 public void testGetters() {
   assertEquals(COUPON.getPaymentDate(), PAYMENT_DATE);
   assertEquals(COUPON.getAccrualStartDate(), ACCRUAL_START_DATES[0]);
   assertEquals(COUPON.getAccrualEndDate(), ACCRUAL_END_DATES[NB_SUB_PERIOD - 1]);
   assertEquals(COUPON.getPaymentYearFraction(), PAYMENT_ACCRUAL_FACTOR, 1E-10);
   assertEquals(COUPON.getNotional(), NOTIONAL, 1E-2);
   assertEquals(COUPON.getRate(), FIXED_RATE, 1E-10);
   assertArrayEquals(COUPON.getAccrualStartDates(), ACCRUAL_START_DATES);
   assertArrayEquals(COUPON.getAccrualEndDates(), ACCRUAL_END_DATES);
   assertArrayEquals(COUPON.getPaymentAccrualFactors(), PAYMENT_ACCRUAL_FACTORS, 0);
 }