public void ReduceMoneyDifferentCurrencyTest()
{
Bank bank = new Bank();
bank.AddRate("CHF", "USD", 2);
Money result = bank.Reduce(Money.Franc(2), "USD");
Assert.AreEqual(Money.Dollar(1), result);
}
public void ReduceSumTest()
{
IExpression sum = new Sum(Money.Dollar(3), Money.Dollar(4));
Bank bank = new Bank();
Money result = bank.Reduce(sum, "USD");
Assert.AreEqual(Money.Dollar(7), result);
}
public void SimpleAdditionTest()
{
Money five = Money.Dollar(5);
IExpression sum = five.Plus(five);
Bank bank = new Bank();
Money reduced = bank.Reduce(sum, "USD");
Assert.AreEqual(Money.Dollar(10), reduced);
}
public Money Reduce(Bank bank, string to)
{
int rate = bank.Rate(_currency, to);
return new Money(_amount / rate, to);
}
public void SumPlusMoneyTest()
{
IExpression fiveBucks = Money.Dollar(5);
IExpression tenFrans = Money.Franc(10);
Bank bank = new Bank();
bank.AddRate("CHF", "USD", 2);
IExpression sum = new Sum(fiveBucks, tenFrans).Plus(fiveBucks);
Money result = bank.Reduce(sum, "USD");
Assert.AreEqual(Money.Dollar(15), result);
}
public void MixedAdditionTest()
{
IExpression fiveBucks = Money.Dollar(5);
IExpression tenFrans = Money.Franc(10);
Bank bank = new Bank();
bank.AddRate("CHF", "USD", 2);
Money result = bank.Reduce(fiveBucks.Plus(tenFrans), "USD");
Assert.AreEqual(Money.Dollar(10), result);
}
public void ReduceMoneyTest()
{
Bank bank = new Bank();
Money result = bank.Reduce(Money.Dollar(1), "USD");
Assert.AreEqual(Money.Dollar(1), result);
}