Пример #1
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 @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);
 }
Пример #2
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 @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);
 }
Пример #3
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  @Test
  public void testMixedAddiction() {
    Expression fiveBucks = Money.dollar(5);
    Expression tenFranks = Money.franc(10);
    Bank bank = new Bank();
    bank.addRate("CHF", "USD", 2);
    Money result = bank.reduce(fiveBucks.plus(tenFranks), "USD");

    assertEquals(Money.dollar(10), result);
  }
Пример #4
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  @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);
  }
Пример #5
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 @Test
 public void testReduceMoneyDifferentCurrency() {
   Bank bank = new Bank();
   bank.addRate("CHF", "USD", 2);
   assertEquals(Money.dollar(1), bank.reduce(Money.franc(2), "USD"));
 }
Пример #6
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 @Test
 public void testReduceMoney() {
   Bank bank = new Bank();
   Money result = bank.reduce(Money.dollar(1), "USD");
   assertEquals(Money.dollar(1), result);
 }