//-------------------------------------------------------------------------
public virtual void test_crossRate()
{
FxRate gbpUsd = FxRate.of(GBP, USD, 5d / 4d);
FxRate usdGbp = FxRate.of(USD, GBP, 4d / 5d);
FxRate eurUsd = FxRate.of(EUR, USD, 8d / 7d);
FxRate usdEur = FxRate.of(USD, EUR, 7d / 8d);
FxRate eurGbp = FxRate.of(EUR, GBP, (8d / 7d) * (4d / 5d));
FxRate gbpGbp = FxRate.of(GBP, GBP, 1d);
FxRate usdUsd = FxRate.of(USD, USD, 1d);
assertEquals(eurUsd.crossRate(usdGbp), eurGbp);
assertEquals(eurUsd.crossRate(gbpUsd), eurGbp);
assertEquals(usdEur.crossRate(usdGbp), eurGbp);
assertEquals(usdEur.crossRate(gbpUsd), eurGbp);
assertEquals(gbpUsd.crossRate(usdEur), eurGbp);
assertEquals(gbpUsd.crossRate(eurUsd), eurGbp);
assertEquals(usdGbp.crossRate(usdEur), eurGbp);
assertEquals(usdGbp.crossRate(eurUsd), eurGbp);
assertThrowsIllegalArg(() => gbpGbp.crossRate(gbpUsd)); // identity
assertThrowsIllegalArg(() => usdUsd.crossRate(gbpUsd)); // identity
assertThrowsIllegalArg(() => gbpUsd.crossRate(gbpUsd)); // same currencies
assertThrowsIllegalArg(() => gbpUsd.crossRate(usdGbp)); // same currencies
assertThrowsIllegalArg(() => gbpUsd.crossRate(FxRate.of(EUR, CAD, 12d / 5d))); // no common currency
}
public virtual void test_equals_bad()
{
FxRate test = FxRate.of(AUD, GBP, 1.25d);
assertFalse(test.Equals(ANOTHER_TYPE));
assertFalse(test.Equals(null));
}
//-------------------------------------------------------------------------
public virtual void test_fxRate_forBase()
{
FxRate test = FxRate.of(GBP, USD, 1.25d);
assertEquals(test.fxRate(GBP, USD), 1.25d);
assertEquals(test.fxRate(USD, GBP), 1d / 1.25d);
assertThrowsIllegalArg(() => test.fxRate(GBP, AUD));
}
//-------------------------------------------------------------------------
public virtual void test_of_CurrencyPairDouble()
{
FxRate test = FxRate.of(CurrencyPair.of(GBP, USD), 1.5d);
assertEquals(test.Pair, CurrencyPair.of(GBP, USD));
assertEquals(test.fxRate(GBP, USD), 1.5d, 0);
assertEquals(test.ToString(), "GBP/USD 1.5");
}
public virtual void test_of_CurrencyPairDouble_reverseStandardOrder()
{
FxRate test = FxRate.of(CurrencyPair.of(USD, GBP), 0.8d);
assertEquals(test.Pair, CurrencyPair.of(USD, GBP));
assertEquals(test.fxRate(USD, GBP), 0.8d, 0);
assertEquals(test.ToString(), "USD/GBP 0.8");
}
public virtual void test_of_CurrencyPairDouble_same()
{
FxRate test = FxRate.of(CurrencyPair.of(USD, USD), 1d);
assertEquals(test.Pair, CurrencyPair.of(USD, USD));
assertEquals(test.fxRate(USD, USD), 1d, 0);
assertEquals(test.ToString(), "USD/USD 1");
}
public virtual void test_convertedTo_missingFxRate()
{
DoubleArray values = DoubleArray.of(1, 2, 3);
CurrencyAmountArray test = CurrencyAmountArray.of(GBP, values);
FxRate fxRate = FxRate.of(EUR, USD, 1.61);
assertThrows(() => test.convertedTo(USD, fxRate), typeof(System.ArgumentException));
}
//-------------------------------------------------------------------------
public virtual void test_convert()
{
FxRate test = FxRate.of(GBP, USD, 1.25d);
assertEquals(test.convert(100, GBP, USD), 125d);
assertEquals(test.convert(100, USD, GBP), 100d / 1.25d);
assertThrowsIllegalArg(() => test.convert(100, GBP, AUD));
}
public virtual void test_convertedTo_noConversionNecessary()
{
DoubleArray values = DoubleArray.of(1, 2, 3);
CurrencyAmountArray test = CurrencyAmountArray.of(GBP, values);
FxRate fxRate = FxRate.of(GBP, USD, 1.61);
CurrencyAmountArray convertedList = test.convertedTo(GBP, fxRate);
assertThat(convertedList).isEqualTo(test);
}
//-------------------------------------------------------------------------
public virtual void test_convertedTo()
{
DoubleArray values = DoubleArray.of(1, 2, 3);
CurrencyAmountArray test = CurrencyAmountArray.of(GBP, values);
FxRate fxRate = FxRate.of(GBP, USD, 1.61);
CurrencyAmountArray convertedList = test.convertedTo(USD, fxRate);
DoubleArray expectedValues = DoubleArray.of(1 * 1.61, 2 * 1.61, 3 * 1.61);
CurrencyAmountArray expectedList = CurrencyAmountArray.of(USD, expectedValues);
assertThat(convertedList).isEqualTo(expectedList);
}
//-----------------------------------------------------------------------
public override bool Equals(object obj)
{
if (obj == this)
{
return(true);
}
if (obj != null && obj.GetType() == this.GetType())
{
FxRate other = (FxRate)obj;
return(JodaBeanUtils.equal(pair, other.pair) && JodaBeanUtils.equal(rate, other.rate));
}
return(false);
}
// computes the cross rate
private static FxRate computeCross(FxRate fx1, FxRate fx2, CurrencyPair crossPairAC)
{
// aim is to convert AAA/BBB and BBB/CCC to AAA/CCC
Currency currA = crossPairAC.Base;
Currency currC = crossPairAC.Counter;
// given the conventional cross rate pair, order the two rates to match
bool crossBaseCurrencyInFx1 = fx1.pair.contains(currA);
FxRate fxABorBA = crossBaseCurrencyInFx1 ? fx1 : fx2;
FxRate fxBCorCB = crossBaseCurrencyInFx1 ? fx2 : fx1;
// extract the rates, taking the inverse if the pair is in the inverse order
double rateAB = fxABorBA.Pair.Base.Equals(currA) ? fxABorBA.rate : 1d / fxABorBA.rate;
double rateBC = fxBCorCB.Pair.Counter.Equals(currC) ? fxBCorCB.rate : 1d / fxBCorCB.rate;
return(FxRate.of(crossPairAC, rateAB * rateBC));
}
//-------------------------------------------------------------------------
public virtual void test_equals_hashCode()
{
FxRate a1 = FxRate.of(AUD, GBP, 1.25d);
FxRate a2 = FxRate.of(AUD, GBP, 1.25d);
FxRate b = FxRate.of(USD, GBP, 1.25d);
FxRate c = FxRate.of(USD, GBP, 1.35d);
assertEquals(a1.Equals(a1), true);
assertEquals(a1.Equals(a2), true);
assertEquals(a1.Equals(b), false);
assertEquals(a1.Equals(c), false);
assertEquals(b.Equals(a1), false);
assertEquals(b.Equals(a2), false);
assertEquals(b.Equals(b), true);
assertEquals(b.Equals(c), false);
assertEquals(c.Equals(a1), false);
assertEquals(c.Equals(a2), false);
assertEquals(c.Equals(b), false);
assertEquals(c.Equals(c), true);
assertEquals(a1.GetHashCode(), a2.GetHashCode());
}
/// <summary>
/// Returns an FX rate object representing the market convention rate between the two currencies.
/// <para>
/// If the currency pair is the market convention pair, this method returns {@code this}, otherwise
/// it returns an {@code FxRate} with the inverse currency pair and reciprocal rate.
///
/// </para>
/// </summary>
/// <returns> an FX rate object representing the market convention rate between the two currencies </returns>
public FxRate toConventional()
{
return(pair.Conventional ? this : FxRate.of(pair.toConventional(), 1 / rate));
}
/// <summary>
/// Derives an FX rate from two related FX rates.
/// <para>
/// Given two FX rates it is possible to derive another rate if they have a currency in common.
/// For example, given rates for EUR/GBP and EUR/CHF it is possible to derive rates for GBP/CHF.
/// The result will always have a currency pair in the conventional order.
/// </para>
/// <para>
/// The cross is only returned if the two pairs contains three currencies in total.
/// If the inputs are invalid, an exception is thrown.
/// <ul>
/// <li>AAA/BBB and BBB/CCC - valid, producing AAA/CCC
/// <li>AAA/BBB and CCC/BBB - valid, producing AAA/CCC
/// <li>AAA/BBB and BBB/AAA - invalid, exception thrown
/// <li>AAA/BBB and BBB/BBB - invalid, exception thrown
/// <li>AAA/BBB and CCC/DDD - invalid, exception thrown
/// </ul>
///
/// </para>
/// </summary>
/// <param name="other"> the other rates </param>
/// <returns> a set of FX rates derived from these rates and the other rates </returns>
/// <exception cref="IllegalArgumentException"> if the cross rate cannot be calculated </exception>
public FxRate crossRate(FxRate other)
{
return(pair.cross(other.pair).map(cross => computeCross(this, other, cross)).orElseThrow(() => new System.ArgumentException(Messages.format("Unable to cross when no unique common currency: {} and {}", pair, other.pair))));
}
public virtual void test_toConventional()
{
assertEquals(FxRate.of(GBP, USD, 1.25), FxRate.of(USD, GBP, 0.8).toConventional());
assertEquals(FxRate.of(GBP, USD, 1.25), FxRate.of(GBP, USD, 1.25).toConventional());
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test(dataProvider = "parseGood") public void test_parse_String_good(String input, Currency super, Currency counter, double rate)
public virtual void test_parse_String_good(string input, Currency @base, Currency counter, double rate)
{
assertEquals(FxRate.parse(input), FxRate.of(@base, counter, rate));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test(dataProvider = "parseBad", expectedExceptions = IllegalArgumentException.class) public void test_parse_String_bad(String input)
public virtual void test_parse_String_bad(string input)
{
FxRate.parse(input);
}
public virtual void test_of_CurrencyCurrencyDouble_null()
{
assertThrowsIllegalArg(() => FxRate.of(null, USD, 1.5d));
assertThrowsIllegalArg(() => FxRate.of(USD, null, 1.5d));
assertThrowsIllegalArg(() => FxRate.of(null, null, 1.5d));
}
public virtual void test_of_CurrencyCurrencyDouble_invalid()
{
assertThrowsIllegalArg(() => FxRate.of(GBP, USD, -1.5d));
assertThrowsIllegalArg(() => FxRate.of(GBP, GBP, 2d));
}
//-----------------------------------------------------------------------
public virtual void coverage()
{
coverImmutableBean(FxRate.of(GBP, USD, 1.25d));
}
//-----------------------------------------------------------------------
public virtual void test_serialization()
{
assertSerialization(FxRate.of(GBP, USD, 1.25d));
assertSerialization(FxRate.of(GBP, GBP, 1d));
}
//-------------------------------------------------------------------------
public virtual void test_inverse()
{
FxRate test = FxRate.of(GBP, USD, 1.25d);
assertEquals(test.inverse(), FxRate.of(USD, GBP, 0.8d));
}
public virtual void test_inverse_same()
{
FxRate test = FxRate.of(GBP, GBP, 1d);
assertEquals(test.inverse(), FxRate.of(GBP, GBP, 1d));
}
