public void Should_ReduceMoney_DifferentCurrency()
{
Bank bank = new Bank();
bank.AddRate("CHF", "USD", 2);
Assert.AreEqual(2, actual: bank.Rate(CHF, USD));
}
public void Should_Different_Plus()
{
MoneyExpression sum = Money.Dollar(5).Plus(Money.Franc(10));
Bank bank = new Bank();
bank.AddRate("CHF", "USD", 2);
Assert.AreEqual(Money.Dollar(10), sum.Reduce(bank, USD));
}
public void Test_Sum_Times()
{
MoneyExpression fiveBucks = Money.Dollar(5);
MoneyExpression tenFrancs = Money.Franc(10);
Bank bank = new Bank();
bank.AddRate("CHF", "USD", 2);
MoneyExpression sum = new Sum(fiveBucks, tenFrancs).Times(2);
Money result = bank.Reduce(sum, USD);
Assert.AreEqual(Money.Dollar(20), result);
}