/**
* Test method for {@link edu.ncsu.csc216.cash_register.CashRegister#processPurchase(int,
* edu.ncsu.csc216.cash_register.CurrencyCollection)}. Tests processPurchase method Tests
* determine if the balance of the register changes by the appropriate amount. Test also
* determines if an IllegalArgumentException is thrown if payment is less than the purhcase
* amount.
*/
@Test
public void testProcessPurchase() {
// purchase amount is 10 dollars
int purchaseAmount = 1000;
// currency collection payment
CurrencyCollection payment = new CurrencyCollection(0);
// Add 1 ten dollar bill to the payment currency collection
payment.modifyDenomination(CurrencyCollection.TEN_VALUE, 1);
// process purchase with payment given
register.processPurchase(purchaseAmount, payment);
// test if payment amount (1000) was added to the balance (36410)
assertEquals(37410, register.getCurrentBalance());
// test illegal argument exception by not paying with enough money
// Creates new currency collection
CurrencyCollection payment2 = new CurrencyCollection(0);
// Add the payment of one five dollar bill to the collection
payment2.modifyDenomination(CurrencyCollection.FIVE_VALUE, 1);
// try to process purchase with payment amount
try {
register.processPurchase(purchaseAmount, payment2);
fail(); // should never get here
} catch (IllegalArgumentException e) {
// check the payment was returned and the balance was not added to the register
assertEquals(37410, register.getCurrentBalance());
}
}
/**
* Test method for {@link edu.ncsu.csc216.cash_register.CashRegister#processRefund(int)}. Tests
* processRefund method Tests determine if the appropriate refund amount is taken out of the
* register balance.
*/
@Test
public void testProcessRefund() {
// purchase amount is 5 dollars
int refundAmount = 500;
// Subtracts refund amount from the register
register.processRefund(refundAmount);
// test if amount (500) was subtracted from balance (36410)
assertEquals(35910, register.getCurrentBalance());
}
/**
* Test method for {@link edu.ncsu.csc216.cash_register.CashRegister#getCurrentBalance()}. Tests
* getCurrentBalance method Test determines if the current balance of the register is what it is
* assigned to.
*/
@Test
public void testGetCurrentBalance() {
assertEquals(36410, register.getCurrentBalance());
}
