//-------------------------------------------------------------------------
        public virtual void test_requirementsAndCurrency()
        {
            IborCapFloorTradeCalculationFunction function = new IborCapFloorTradeCalculationFunction();
            ISet <Measure>       measures = function.supportedMeasures();
            FunctionRequirements reqs     = function.requirements(TRADE, measures, PARAMS, REF_DATA);

            assertThat(reqs.OutputCurrencies).containsOnly(CURRENCY);
            assertThat(reqs.ValueRequirements).isEqualTo(ImmutableSet.of(DISCOUNT_CURVE_ID, FORWARD_CURVE_ID, VOL_ID));
            assertThat(reqs.TimeSeriesRequirements).isEqualTo(ImmutableSet.of(IndexQuoteId.of(INDEX)));
            assertThat(function.naturalCurrency(TRADE, REF_DATA)).isEqualTo(CURRENCY);
        }