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Start your free trialUdrea Mihai
3,465 PointsHelp
I am stuck, can you help me with some suggestions please?
"Can you please add a new test that verifies that on a successful vend operation that the running sales total is incremented?"
package com.teamtreehouse.vending;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
public class VendingMachineTest {
private VendingMachine machine;
public class NotifierSub implements Notifier {
@Override
public void onSale(Item item) {
return;
}
}
@Before
public void setUp() throws Exception {
Notifier notifier = new NotifierSub();
machine = new VendingMachine(notifier, 10, 10, 10);
machine.restock("A1", "Twinkies", 10, 30, 75);
}
@Test
public void vendingWhenStockedReturnsItem() throws Exception {
machine.addMoney(75);
Item item = machine.vend("A1");
assertEquals("Twinkies", item.getName());
}
@Test
public void sucecessfulIncremetVendOperation() throws Exception {
machine.addMoney(1);
Item item = machine.vend("A1");
assertEquals(1,machine.getRunningSalesTotal());
}
}
package com.teamtreehouse.vending;
public class VendingMachine {
private final Notifier notifier;
private final AbstractChooser chooser;
private final Creditor creditor;
private final Bin[][] bins;
private int runningSalesTotal;
public VendingMachine(Notifier notifier, int rowCount, int columnCount, int maxItemsPerBin) {
this.notifier = notifier;
chooser = new AlphaNumericChooser(rowCount, columnCount);
creditor = new Creditor();
runningSalesTotal = 0;
bins = new Bin[rowCount][columnCount];
for (int row = 0; row < rowCount; row++) {
for (int col = 0; col < columnCount; col++) {
bins[row][col] = new Bin(maxItemsPerBin);
}
}
}
public void addMoney(int money) {
creditor.addFunds(money);
}
public int refundMoney() {
return creditor.refund();
}
public Item vend(String input) throws InvalidLocationException, NotEnoughFundsException {
Bin bin = binByInput(input);
int price = bin.getItemPrice();
creditor.deduct(price);
runningSalesTotal += price;
Item item = bin.release();
notifier.onSale(item);
return item;
}
public int getRunningSalesTotal() {
return runningSalesTotal;
}
public void restock(String input, String name, int amount, int wholesalePrice, int retailPrice) throws InvalidLocationException {
Bin bin = binByInput(input);
bin.restock(name, amount, wholesalePrice, retailPrice);
}
private Bin binByInput(String input) throws InvalidLocationException {
AbstractChooser.Location location = chooser.locationFromInput(input);
return bins[location.getRow()][location.getColumn()];
}
}
3 Answers
Udrea Mihai
3,465 PointsI found the solution, maybe is useful for someone, first review "What to not test" clip and after that you will now to use getRunningSalesTotal() method.
Placinta Alexandru
3,011 Points@Test public void sucecessfulIncremetVendOperation() throws Exception {
machine.addMoney(75);
Item item = machine.vend("A1");
assertEquals(75,machine.getRunningSalesTotal());
}
I just followed the error messages
Hannah Flynn
21,429 PointsI can't find it in the video you are talking about, Udrea. Can you show me in full code mode?