@Test
 public void priceFromCurves() {
   final double priceComputed = METHOD_SECURITY.priceFromCurves(BILL_IAM_SEC, CURVE_BUNDLE);
   final CurrencyAmount pvComputed = METHOD_SECURITY.presentValue(BILL_IAM_SEC, CURVE_BUNDLE);
   final double priceExpected =
       pvComputed.getAmount()
           / (NOTIONAL
               * CURVE_BUNDLE
                   .getCurve(NAME_CURVES[0])
                   .getDiscountFactor(BILL_IAM_SEC.getSettlementTime()));
   assertEquals(
       "Bill Security: discounting method - price", priceExpected, priceComputed, TOLERANCE_PRICE);
 }
 @Test
 public void presentValueFromYield() {
   final CurrencyAmount pvComputed =
       METHOD_SECURITY.presentValueFromYield(BILL_IAM_SEC, YIELD, CURVE_BUNDLE);
   final double price = METHOD_SECURITY.priceFromYield(BILL_IAM_SEC, YIELD);
   final double pvExpected =
       NOTIONAL
           * price
           * CURVE_BUNDLE
               .getCurve(NAME_CURVES[0])
               .getDiscountFactor(BILL_IAM_SEC.getSettlementTime());
   assertEquals(
       "Bill Security: discounting method - present value",
       pvExpected,
       pvComputed.getAmount(),
       TOLERANCE_PV);
 }