@Test
public void exchangeRateService() {
ExchangeRateService service = new ExchangeRateService();
assertEquals(wechselkursEuro2Chf, service.getRate(euro, chf), 0.00001);
assertEquals(wechselkursChf2Euro, service.getRate(chf, euro), 0.00001);
assertEquals(2, service.getRate(dollar, euro), 0.00001);
assertEquals(1 / 2, service.getRate(euro, dollar), 0.00001);
}
///////////////////////////////////////////
// Exercise: class that adds Euro and CHF
//
// Wechselkurs
// W�hrung
// Zielw�hrung ber�cksichtigen!
// done Summands are changeable
// Wie kommt der Wechselkurs in die Methode?
//
//
@Test
public void addCurrency() {
Adder adder = new Adder();
ExchangeRateService service = new ExchangeRateService();
assertEquals(5 + 10 * service.getRate(chf, euro), adder.add(5, euro, 10, chf, euro), 0.00001);
assertEquals(7 + 10 * service.getRate(chf, euro), adder.add(7, euro, 10, chf, euro), 0.00001);
assertEquals(7 + 10 * service.getRate(chf, euro), adder.add(10, chf, 7, euro, euro), 0.00001);
assertEquals(
(7 + 10 * service.getRate(chf, euro)) * service.getRate(euro, chf),
adder.add(10, chf, 7, euro, chf),
0.00001);
assertEquals(5 + 10, adder.add(5, euro, 10, euro, euro), 0.00001);
assertEquals(5 + 10, adder.add(5, chf, 10, chf, chf), 0.00001);
assertEquals(
5 + 10 * service.getRate(dollar, euro), adder.add(5, euro, 10, dollar, euro), 0.00001);
}