// -------------------------------------------------------------------------
// proper end-to-end tests are elsewhere
public void test_parameterSensitivity() {
DiscountFxForwardRates test =
DiscountFxForwardRates.of(CURRENCY_PAIR, FX_RATE, DFCURVE_GBP, DFCURVE_USD);
FxForwardSensitivity point = FxForwardSensitivity.of(CURRENCY_PAIR, GBP, DATE_VAL, 1d);
assertEquals(test.parameterSensitivity(point).size(), 2);
FxForwardSensitivity point2 = FxForwardSensitivity.of(CURRENCY_PAIR, USD, DATE_VAL, 1d);
assertEquals(test.parameterSensitivity(point2).size(), 2);
}
// -------------------------------------------------------------------------
public void test_rateFxSpotSensitivity() {
DiscountFxForwardRates test =
DiscountFxForwardRates.of(CURRENCY_PAIR, FX_RATE, DFCURVE_GBP, DFCURVE_USD);
double dfCcyBaseAtMaturity = DFCURVE_GBP.discountFactor(DATE_REF);
double dfCcyCounterAtMaturity = DFCURVE_USD.discountFactor(DATE_REF);
double expected = dfCcyBaseAtMaturity / dfCcyCounterAtMaturity;
assertEquals(test.rateFxSpotSensitivity(GBP, DATE_REF), expected, 1e-12);
assertEquals(test.rateFxSpotSensitivity(USD, DATE_REF), 1d / expected, 1e-12);
}
// -------------------------------------------------------------------------
public void test_ratePointSensitivity() {
DiscountFxForwardRates test =
DiscountFxForwardRates.of(CURRENCY_PAIR, FX_RATE, DFCURVE_GBP, DFCURVE_USD);
assertEquals(
test.ratePointSensitivity(GBP, DATE_REF),
FxForwardSensitivity.of(CURRENCY_PAIR, GBP, DATE_REF, 1d));
assertEquals(
test.ratePointSensitivity(USD, DATE_REF),
FxForwardSensitivity.of(CURRENCY_PAIR, USD, DATE_REF, 1d));
}
public void test_builder() {
assertThrowsIllegalArg(
() ->
DiscountFxForwardRates.meta()
.builder()
.setString(DiscountFxForwardRates.meta().currencyPair(), "GBP/USD")
.build());
assertThrowsIllegalArg(
() ->
DiscountFxForwardRates.meta()
.builder()
.setString(DiscountFxForwardRates.meta().currencyPair().name(), "GBP/USD")
.build());
}
// -------------------------------------------------------------------------
public void coverage() {
DiscountFxForwardRates test1 =
DiscountFxForwardRates.of(CURRENCY_PAIR, FX_RATE, DFCURVE_GBP, DFCURVE_USD);
coverImmutableBean(test1);
DiscountFxForwardRates test2 =
DiscountFxForwardRates.of(CURRENCY_PAIR, FX_RATE.inverse(), DFCURVE_GBP2, DFCURVE_USD2);
coverBeanEquals(test1, test2);
DiscountFxForwardRates test3 =
DiscountFxForwardRates.of(
CurrencyPair.of(USD, EUR),
FxRate.of(EUR, USD, 1.2d),
DFCURVE_USD,
ZeroRateDiscountFactors.of(EUR, DATE_VAL, CURVE2));
coverBeanEquals(test1, test3);
}
// -------------------------------------------------------------------------
public void test_withDiscountFactors() {
DiscountFxForwardRates test =
DiscountFxForwardRates.of(CURRENCY_PAIR, FX_RATE, DFCURVE_GBP, DFCURVE_USD);
test = test.withDiscountFactors(DFCURVE_GBP2, DFCURVE_USD2);
assertEquals(test.getCurrencyPair(), CURRENCY_PAIR);
assertEquals(test.getValuationDate(), DATE_VAL);
assertEquals(test.getBaseCurrencyDiscountFactors(), DFCURVE_GBP2);
assertEquals(test.getCounterCurrencyDiscountFactors(), DFCURVE_USD2);
assertEquals(test.getFxRateProvider(), FX_RATE);
}
public void test_of_nonMatchingCurrency() {
assertThrowsIllegalArg(
() -> DiscountFxForwardRates.of(CURRENCY_PAIR, FX_RATE, DFCURVE_GBP, DFCURVE_GBP));
assertThrowsIllegalArg(
() -> DiscountFxForwardRates.of(CURRENCY_PAIR, FX_RATE, DFCURVE_USD, DFCURVE_USD));
}
// -------------------------------------------------------------------------
public void test_of() {
DiscountFxForwardRates test =
DiscountFxForwardRates.of(CURRENCY_PAIR, FX_RATE, DFCURVE_GBP, DFCURVE_USD);
assertEquals(test.getCurrencyPair(), CURRENCY_PAIR);
assertEquals(test.getValuationDate(), DATE_VAL);
assertEquals(test.getBaseCurrencyDiscountFactors(), DFCURVE_GBP);
assertEquals(test.getCounterCurrencyDiscountFactors(), DFCURVE_USD);
assertEquals(test.getFxRateProvider(), FX_RATE);
assertEquals(test.findData(CURVE1.getName()), Optional.of(CURVE1));
assertEquals(test.findData(CURVE2.getName()), Optional.of(CURVE2));
assertEquals(test.findData(CurveName.of("Rubbish")), Optional.empty());
int baseSize = DFCURVE_USD.getParameterCount();
assertEquals(test.getParameterCount(), DFCURVE_GBP.getParameterCount() + baseSize);
assertEquals(test.getParameter(0), DFCURVE_GBP.getParameter(0));
assertEquals(test.getParameter(baseSize), DFCURVE_USD.getParameter(0));
assertEquals(test.getParameterMetadata(0), DFCURVE_GBP.getParameterMetadata(0));
assertEquals(test.getParameterMetadata(baseSize), DFCURVE_USD.getParameterMetadata(0));
assertEquals(
test.withParameter(0, 1d).getBaseCurrencyDiscountFactors(),
DFCURVE_GBP.withParameter(0, 1d));
assertEquals(test.withParameter(0, 1d).getCounterCurrencyDiscountFactors(), DFCURVE_USD);
assertEquals(test.withParameter(baseSize, 1d).getBaseCurrencyDiscountFactors(), DFCURVE_GBP);
assertEquals(
test.withParameter(baseSize, 1d).getCounterCurrencyDiscountFactors(),
DFCURVE_USD.withParameter(0, 1d));
assertEquals(
test.withPerturbation((i, v, m) -> v + 1d).getBaseCurrencyDiscountFactors(),
DFCURVE_GBP.withPerturbation((i, v, m) -> v + 1d));
assertEquals(
test.withPerturbation((i, v, m) -> v + 1d).getCounterCurrencyDiscountFactors(),
DFCURVE_USD.withPerturbation((i, v, m) -> v + 1d));
}
public void test_rateFxSpotSensitivity_nonMatchingCurrency() {
DiscountFxForwardRates test =
DiscountFxForwardRates.of(CURRENCY_PAIR, FX_RATE, DFCURVE_GBP, DFCURVE_USD);
assertThrowsIllegalArg(() -> test.rateFxSpotSensitivity(EUR, DATE_VAL));
}
public void test_of_nonMatchingValuationDates() {
DiscountFactors curve2 = ZeroRateDiscountFactors.of(USD, DATE_REF, CURVE2);
assertThrowsIllegalArg(
() -> DiscountFxForwardRates.of(CURRENCY_PAIR, FX_RATE, DFCURVE_GBP, curve2));
}