public void testDirectLookup()
        {
            ExchangeRateManager rateManager = ExchangeRateManager.Instance;

            rateManager.clear();

            Currency EUR = new EURCurrency(), USD = new USDCurrency();

            ExchangeRate eur_usd1 = new ExchangeRate(EUR, USD, 1.1983);
            ExchangeRate eur_usd2 = new ExchangeRate(USD, EUR, 1.0 / 1.2042);

            rateManager.add(eur_usd1, new Date(4, Month.August, 2004));
            rateManager.add(eur_usd2, new Date(5, Month.August, 2004));

            Money m1 = 50000.0 * EUR;
            Money m2 = 100000.0 * USD;

            Money.conversionType = Money.ConversionType.NoConversion;

            ExchangeRate eur_usd    = rateManager.lookup(EUR, USD, new Date(4, Month.August, 2004), ExchangeRate.Type.Direct);
            Money        calculated = eur_usd.exchange(m1);
            Money        expected   = new Money(m1.value * eur_usd1.rate, USD);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            eur_usd    = rateManager.lookup(EUR, USD, new Date(5, Month.August, 2004), ExchangeRate.Type.Direct);
            calculated = eur_usd.exchange(m1);
            expected   = new Money(m1.value / eur_usd2.rate, USD);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            ExchangeRate usd_eur = rateManager.lookup(USD, EUR, new Date(4, Month.August, 2004), ExchangeRate.Type.Direct);

            calculated = usd_eur.exchange(m2);
            expected   = new Money(m2.value / eur_usd1.rate, EUR);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            usd_eur = rateManager.lookup(USD, EUR, new Date(5, Month.August, 2004), ExchangeRate.Type.Direct);

            calculated = usd_eur.exchange(m2);
            expected   = new Money(m2.value * eur_usd2.rate, EUR);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }
        }
        public void testTriangulatedLookup()
        {
            ExchangeRateManager rateManager = ExchangeRateManager.Instance;

            rateManager.clear();

            Currency EUR = new EURCurrency(), USD = new USDCurrency(), ITL = new ITLCurrency();

            ExchangeRate eur_usd1 = new ExchangeRate(EUR, USD, 1.1983);
            ExchangeRate eur_usd2 = new ExchangeRate(EUR, USD, 1.2042);

            rateManager.add(eur_usd1, new Date(4, Month.August, 2004));
            rateManager.add(eur_usd2, new Date(5, Month.August, 2004));

            Money m1 = 50000000.0 * ITL;
            Money m2 = 100000.0 * USD;

            Money.conversionType = Money.ConversionType.NoConversion;

            ExchangeRate itl_usd    = rateManager.lookup(ITL, USD, new Date(4, Month.August, 2004));
            Money        calculated = itl_usd.exchange(m1);
            Money        expected   = new Money(m1.value * eur_usd1.rate / 1936.27, USD);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            itl_usd    = rateManager.lookup(ITL, USD, new Date(5, Month.August, 2004));
            calculated = itl_usd.exchange(m1);
            expected   = new Money(m1.value * eur_usd2.rate / 1936.27, USD);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            ExchangeRate usd_itl = rateManager.lookup(USD, ITL, new Date(4, Month.August, 2004));

            calculated = usd_itl.exchange(m2);
            expected   = new Money(m2.value * 1936.27 / eur_usd1.rate, ITL);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            usd_itl = rateManager.lookup(USD, ITL, new Date(5, Month.August, 2004));

            calculated = usd_itl.exchange(m2);
            expected   = new Money(m2.value * 1936.27 / eur_usd2.rate, ITL);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }
        }
        public void testSmartLookup()
        {
            Currency EUR = new EURCurrency(), USD = new USDCurrency(), GBP = new GBPCurrency(),
                     CHF = new CHFCurrency(), SEK = new SEKCurrency(), JPY = new JPYCurrency();

            ExchangeRateManager rateManager = ExchangeRateManager.Instance;

            rateManager.clear();

            ExchangeRate eur_usd1           = new ExchangeRate(EUR, USD, 1.1983);
            ExchangeRate eur_usd2           = new ExchangeRate(USD, EUR, 1.0 / 1.2042);

            rateManager.add(eur_usd1, new Date(4, Month.August, 2004));
            rateManager.add(eur_usd2, new Date(5, Month.August, 2004));

            ExchangeRate eur_gbp1 = new ExchangeRate(GBP, EUR, 1.0 / 0.6596);
            ExchangeRate eur_gbp2 = new ExchangeRate(EUR, GBP, 0.6612);

            rateManager.add(eur_gbp1, new Date(4, Month.August, 2004));
            rateManager.add(eur_gbp2, new Date(5, Month.August, 2004));

            ExchangeRate usd_chf1 = new ExchangeRate(USD, CHF, 1.2847);
            ExchangeRate usd_chf2 = new ExchangeRate(CHF, USD, 1.0 / 1.2774);

            rateManager.add(usd_chf1, new Date(4, Month.August, 2004));
            rateManager.add(usd_chf2, new Date(5, Month.August, 2004));

            ExchangeRate chf_sek1 = new ExchangeRate(SEK, CHF, 0.1674);
            ExchangeRate chf_sek2 = new ExchangeRate(CHF, SEK, 1.0 / 0.1677);

            rateManager.add(chf_sek1, new Date(4, Month.August, 2004));
            rateManager.add(chf_sek2, new Date(5, Month.August, 2004));

            ExchangeRate jpy_sek1 = new ExchangeRate(SEK, JPY, 14.5450);
            ExchangeRate jpy_sek2 = new ExchangeRate(JPY, SEK, 1.0 / 14.6110);

            rateManager.add(jpy_sek1, new Date(4, Month.August, 2004));
            rateManager.add(jpy_sek2, new Date(5, Month.August, 2004));

            Money m1 = 100000.0 * USD;
            Money m2 = 100000.0 * EUR;
            Money m3 = 100000.0 * GBP;
            Money m4 = 100000.0 * CHF;
            Money m5 = 100000.0 * SEK;
            Money m6 = 100000.0 * JPY;

            Money.conversionType = Money.ConversionType.NoConversion;

            // two-rate chain

            ExchangeRate usd_sek    = rateManager.lookup(USD, SEK, new Date(4, Month.August, 2004));
            Money        calculated = usd_sek.exchange(m1);
            Money        expected   = new Money(m1.value * usd_chf1.rate / chf_sek1.rate, SEK);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            usd_sek    = rateManager.lookup(SEK, USD, new Date(5, Month.August, 2004));
            calculated = usd_sek.exchange(m5);
            expected   = new Money(m5.value * usd_chf2.rate / chf_sek2.rate, USD);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            // three-rate chain

            ExchangeRate eur_sek = rateManager.lookup(EUR, SEK, new Date(4, Month.August, 2004));

            calculated = eur_sek.exchange(m2);
            expected   = new Money(m2.value * eur_usd1.rate * usd_chf1.rate / chf_sek1.rate, SEK);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            eur_sek    = rateManager.lookup(SEK, EUR, new Date(5, Month.August, 2004));
            calculated = eur_sek.exchange(m5);
            expected   = new Money(m5.value * eur_usd2.rate * usd_chf2.rate / chf_sek2.rate, EUR);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            // four-rate chain

            ExchangeRate eur_jpy = rateManager.lookup(EUR, JPY, new Date(4, Month.August, 2004));

            calculated = eur_jpy.exchange(m2);
            expected   = new Money(m2.value * eur_usd1.rate * usd_chf1.rate * jpy_sek1.rate / chf_sek1.rate, JPY);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            eur_jpy    = rateManager.lookup(JPY, EUR, new Date(5, Month.August, 2004));
            calculated = eur_jpy.exchange(m6);
            expected   = new Money(m6.value * jpy_sek2.rate * eur_usd2.rate * usd_chf2.rate / chf_sek2.rate, EUR);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            // five-rate chain

            ExchangeRate gbp_jpy = rateManager.lookup(GBP, JPY, new Date(4, Month.August, 2004));

            calculated = gbp_jpy.exchange(m3);
            expected   = new Money(m3.value * eur_gbp1.rate * eur_usd1.rate * usd_chf1.rate * jpy_sek1.rate / chf_sek1.rate, JPY);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }

            gbp_jpy    = rateManager.lookup(JPY, GBP, new Date(5, Month.August, 2004));
            calculated = gbp_jpy.exchange(m6);
            expected   = new Money(m6.value * jpy_sek2.rate * eur_usd2.rate * usd_chf2.rate * eur_gbp2.rate / chf_sek2.rate, GBP);

            if (!Utils.close(calculated, expected))
            {
                Assert.Fail("Wrong result: expected: " + expected + " calculated: " + calculated);
            }
        }