@Test
public void testCurrency() {
assertEquals(USD, Money.dollar(1).currency());
assertEquals(CHF, Money.franc(1).currency());
}
@Test
public void testEquality() {
Money fiveFrancs = Money.franc(5);
Money fiveDollars = Money.dollar(5);
assertFalse(fiveFrancs.equals(fiveDollars));
}