@Test public void testReduceSum() { Expression sum = new Sum(Money.dollar(3), Money.dollar(4)); Bank bank = new Bank(); Money result = bank.reduce(sum, "USD"); assertEquals(Money.dollar(7), result); }
@Test public void testReduceMoneyDifferentCurrency() { Bank bank = new Bank(); bank.addRate("CHF", "USD", 2); Money result = bank.reduce(Money.franc(2), "USD"); assertEquals(Money.dollar(1), result); }
@Test public void testAddition() { Money five = Money.dollar(5); Expression sum = five.plus(five); Bank bank = new Bank(); Money reduced = bank.reduce(sum, "USD"); assertEquals(Money.dollar(10), reduced); }
public void testMixedAddition() { Expression fiveBucks = Money.dollar(5); Expression tenFrancs = Money.franc(10); Bank bank = new Bank(); bank.addRate("CHF", "USD", 2); Money result = bank.reduce(fiveBucks.plus(tenFrancs), "USD"); assertEquals(Money.dollar(10), result); }
@Test public void testSumTimes() { Expression fiveBucks = Money.dollar(5); Expression tenFranks = Money.franc(10); Bank bank = new Bank(); bank.addRate("CHF", "USD", 2); Expression sum = new Sum(fiveBucks, tenFranks).times(2); Money result = bank.reduce(sum, "USD"); assertEquals(Money.dollar(20), result); }
@Test public void testReduceMoney() { Bank bank = new Bank(); Money result = bank.reduce(Money.dollar(1), "USD"); assertEquals(Money.dollar(1), result); }