//-------------------------------------------------------------------------
/// <summary>
/// Test present value for ISDA FRA Discounting method.
/// </summary>
public virtual void test_presentValue_ISDA()
{
SimpleRatesProvider prov = createProvider(RFRA);
DiscountingFraProductPricer test = DiscountingFraProductPricer.DEFAULT;
CurrencyAmount pvComputed = test.presentValue(RFRA, prov);
CurrencyAmount pvExpected = test.forecastValue(RFRA, prov).multipliedBy(DISCOUNT_FACTOR);
assertEquals(pvComputed.Amount, pvExpected.Amount, TOLERANCE);
// test via FraTrade
DiscountingFraTradePricer testTrade = new DiscountingFraTradePricer(test);
assertEquals(testTrade.presentValue(RFRA_TRADE, prov), test.presentValue(RFRA, prov));
}
/// <summary>
/// Test par spread for ISDA FRA Discounting method.
/// </summary>
public virtual void test_parSpread_ISDA()
{
ResolvedFra fraExp = RFRA;
SimpleRatesProvider prov = createProvider(fraExp);
DiscountingFraProductPricer test = DiscountingFraProductPricer.DEFAULT;
double parSpread = test.parSpread(fraExp, prov);
ResolvedFra fra = createNewFra(FRA, FRA.FixedRate + parSpread);
CurrencyAmount pv = test.presentValue(fra, prov);
assertEquals(pv.Amount, 0.0, TOLERANCE);
// test via FraTrade
DiscountingFraTradePricer testTrade = new DiscountingFraTradePricer(test);
assertEquals(testTrade.parSpread(RFRA_TRADE, prov), test.parSpread(RFRA, prov));
}
/// <summary>
/// Test forecast value for ISDA FRA Discounting method.
/// </summary>
public virtual void test_forecastValue_ISDA()
{
SimpleRatesProvider prov = createProvider(RFRA);
double fixedRate = FRA.FixedRate;
double yearFraction = RFRA.YearFraction;
double notional = RFRA.Notional;
double expected = notional * yearFraction * (FORWARD_RATE - fixedRate) / (1.0 + yearFraction * FORWARD_RATE);
DiscountingFraProductPricer test = DiscountingFraProductPricer.DEFAULT;
CurrencyAmount computed = test.forecastValue(RFRA, prov);
assertEquals(computed.Amount, expected, TOLERANCE);
// test via FraTrade
DiscountingFraTradePricer testTrade = new DiscountingFraTradePricer(test);
assertEquals(testTrade.forecastValue(RFRA_TRADE, prov), test.forecastValue(RFRA, prov));
}
//-------------------------------------------------------------------------
/// <summary>
/// Test explain.
/// </summary>
public virtual void test_explainPresentValue_ISDA()
{
ResolvedFra fraExp = RFRA;
SimpleRatesProvider prov = createProvider(fraExp);
DiscountingFraProductPricer test = DiscountingFraProductPricer.DEFAULT;
CurrencyAmount fvExpected = test.forecastValue(fraExp, prov);
CurrencyAmount pvExpected = test.presentValue(fraExp, prov);
ExplainMap explain = test.explainPresentValue(fraExp, prov);
Currency currency = fraExp.Currency;
int daysBetween = (int) DAYS.between(fraExp.StartDate, fraExp.EndDate);
assertEquals(explain.get(ExplainKey.ENTRY_TYPE).get(), "FRA");
assertEquals(explain.get(ExplainKey.PAYMENT_DATE).get(), fraExp.PaymentDate);
assertEquals(explain.get(ExplainKey.START_DATE).get(), fraExp.StartDate);
assertEquals(explain.get(ExplainKey.END_DATE).get(), fraExp.EndDate);
assertEquals(explain.get(ExplainKey.ACCRUAL_YEAR_FRACTION).Value, fraExp.YearFraction);
assertEquals(explain.get(ExplainKey.DAYS).Value, (int?)(int) daysBetween);
assertEquals(explain.get(ExplainKey.PAYMENT_CURRENCY).get(), currency);
assertEquals(explain.get(ExplainKey.NOTIONAL).get().Amount, fraExp.Notional, TOLERANCE);
assertEquals(explain.get(ExplainKey.TRADE_NOTIONAL).get().Amount, fraExp.Notional, TOLERANCE);
assertEquals(explain.get(ExplainKey.OBSERVATIONS).get().size(), 1);
ExplainMap explainObs = explain.get(ExplainKey.OBSERVATIONS).get().get(0);
IborRateComputation floatingRate = (IborRateComputation) fraExp.FloatingRate;
assertEquals(explainObs.get(ExplainKey.INDEX).get(), floatingRate.Index);
assertEquals(explainObs.get(ExplainKey.FIXING_DATE).get(), floatingRate.FixingDate);
assertEquals(explainObs.get(ExplainKey.INDEX_VALUE).Value, FORWARD_RATE, TOLERANCE);
assertEquals(explainObs.get(ExplainKey.FROM_FIXING_SERIES).HasValue, false);
assertEquals(explain.get(ExplainKey.DISCOUNT_FACTOR).Value, DISCOUNT_FACTOR, TOLERANCE);
assertEquals(explain.get(ExplainKey.FIXED_RATE).Value, fraExp.FixedRate, TOLERANCE);
assertEquals(explain.get(ExplainKey.PAY_OFF_RATE).Value, FORWARD_RATE, TOLERANCE);
assertEquals(explain.get(ExplainKey.COMBINED_RATE).Value, FORWARD_RATE, TOLERANCE);
assertEquals(explain.get(ExplainKey.UNIT_AMOUNT).Value, fvExpected.Amount / fraExp.Notional, TOLERANCE);
assertEquals(explain.get(ExplainKey.FORECAST_VALUE).get().Currency, currency);
assertEquals(explain.get(ExplainKey.FORECAST_VALUE).get().Amount, fvExpected.Amount, TOLERANCE);
assertEquals(explain.get(ExplainKey.PRESENT_VALUE).get().Currency, currency);
assertEquals(explain.get(ExplainKey.PRESENT_VALUE).get().Amount, pvExpected.Amount, TOLERANCE);
// test via FraTrade
DiscountingFraTradePricer testTrade = new DiscountingFraTradePricer(test);
assertEquals(testTrade.explainPresentValue(RFRA_TRADE, prov), test.explainPresentValue(RFRA, prov));
}
//-------------------------------------------------------------------------
/// <summary>
/// Test forecast value sensitivity for ISDA FRA discounting method.
/// </summary>
public virtual void test_forecastValueSensitivity_ISDA()
{
SimpleRatesProvider prov = createProvider(RFRA);
DiscountingFraProductPricer test = DiscountingFraProductPricer.DEFAULT;
PointSensitivities sensitivity = test.forecastValueSensitivity(RFRA, prov);
double eps = 1.e-7;
double fdSense = forecastValueFwdSensitivity(RFRA, FORWARD_RATE, eps);
ImmutableList<PointSensitivity> sensitivities = sensitivity.Sensitivities;
assertEquals(sensitivities.size(), 1);
IborRateSensitivity sensitivity0 = (IborRateSensitivity) sensitivities.get(0);
assertEquals(sensitivity0.Index, FRA.Index);
assertEquals(sensitivity0.Observation.FixingDate, FRA.StartDate);
assertEquals(sensitivity0.Sensitivity, fdSense, FRA.Notional * eps);
// test via FraTrade
DiscountingFraTradePricer testTrade = new DiscountingFraTradePricer(test);
assertEquals(testTrade.forecastValueSensitivity(RFRA_TRADE, prov), test.forecastValueSensitivity(RFRA, prov));
}
//-------------------------------------------------------------------------
/// <summary>
/// Test cash flow for ISDA FRA Discounting method.
/// </summary>
public virtual void test_cashFlows_ISDA()
{
ResolvedFra fraExp = RFRA;
SimpleRatesProvider prov = createProvider(fraExp);
double fixedRate = FRA.FixedRate;
double yearFraction = fraExp.YearFraction;
double notional = fraExp.Notional;
double expected = notional * yearFraction * (FORWARD_RATE - fixedRate) / (1.0 + yearFraction * FORWARD_RATE);
DiscountingFraProductPricer test = DiscountingFraProductPricer.DEFAULT;
CashFlows computed = test.cashFlows(fraExp, prov);
assertEquals(computed.getCashFlows().size(), 1);
assertEquals(computed.getCashFlows().size(), 1);
assertEquals(computed.getCashFlows().get(0).PaymentDate, fraExp.PaymentDate);
assertEquals(computed.getCashFlows().get(0).ForecastValue.Currency, fraExp.Currency);
assertEquals(computed.getCashFlows().get(0).ForecastValue.Amount, expected, TOLERANCE);
// test via FraTrade
DiscountingFraTradePricer testTrade = new DiscountingFraTradePricer(test);
assertEquals(testTrade.cashFlows(RFRA_TRADE, prov), test.cashFlows(fraExp, prov));
}
//-------------------------------------------------------------------------
/// <summary>
/// Test present value sensitivity for ISDA
/// </summary>
public virtual void test_presentValueSensitivity_ISDA()
{
RateComputationFn<RateComputation> mockObs = mock(typeof(RateComputationFn));
DiscountFactors mockDf = mock(typeof(DiscountFactors));
SimpleRatesProvider simpleProv = new SimpleRatesProvider(VAL_DATE, mockDf);
ResolvedFra fraExp = RFRA;
double forwardRate = 0.05;
double discountRate = 0.015;
double paymentTime = 0.3;
double discountFactor = Math.Exp(-discountRate * paymentTime);
LocalDate fixingDate = FRA.StartDate;
IborIndexObservation obs = IborIndexObservation.of(FRA.Index, fixingDate, REF_DATA);
PointSensitivityBuilder sens = IborRateSensitivity.of(obs, 1d);
when(mockDf.discountFactor(fraExp.PaymentDate)).thenReturn(discountFactor);
when(mockDf.zeroRatePointSensitivity(fraExp.PaymentDate)).thenReturn(ZeroRateSensitivity.of(fraExp.Currency, paymentTime, -discountFactor * paymentTime));
when(mockObs.rateSensitivity(fraExp.FloatingRate, fraExp.StartDate, fraExp.EndDate, simpleProv)).thenReturn(sens);
when(mockObs.rate(fraExp.FloatingRate, FRA.StartDate, FRA.EndDate, simpleProv)).thenReturn(forwardRate);
DiscountingFraProductPricer test = new DiscountingFraProductPricer(mockObs);
PointSensitivities sensitivity = test.presentValueSensitivity(fraExp, simpleProv);
double eps = 1.e-7;
double fdDscSense = dscSensitivity(RFRA, forwardRate, discountFactor, paymentTime, eps);
double fdSense = presentValueFwdSensitivity(RFRA, forwardRate, discountFactor, eps);
ImmutableList<PointSensitivity> sensitivities = sensitivity.Sensitivities;
assertEquals(sensitivities.size(), 2);
IborRateSensitivity sensitivity0 = (IborRateSensitivity) sensitivities.get(0);
assertEquals(sensitivity0.Index, FRA.Index);
assertEquals(sensitivity0.Observation.FixingDate, fixingDate);
assertEquals(sensitivity0.Sensitivity, fdSense, FRA.Notional * eps);
ZeroRateSensitivity sensitivity1 = (ZeroRateSensitivity) sensitivities.get(1);
assertEquals(sensitivity1.Currency, FRA.Currency);
assertEquals(sensitivity1.YearFraction, paymentTime);
assertEquals(sensitivity1.Sensitivity, fdDscSense, FRA.Notional * eps);
// test via FraTrade
DiscountingFraTradePricer testTrade = new DiscountingFraTradePricer(test);
assertEquals(testTrade.presentValueSensitivity(RFRA_TRADE, simpleProv), test.presentValueSensitivity(fraExp, simpleProv));
}
