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Start your free trialEnyang Mercy
Courses Plus Student 2,339 PointsUnit Test /Exception Creditor class challenge
Tried to use the @Test annotation but don't understand the challenge properly I keep having errors trying to compile. I need help with my work. Thank you
package com.teamtreehouse.vending;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
public class CreditorTest {
private Creditor creditor;
@Before
public void setUp() throws Exception {
creditor = new Creditor();
}
@Test
public void addingFundsIncrementsAvailableFunds() throws Exception {
creditor.addFunds(25);
creditor.addFunds(25);
assertEquals(50, creditor.getAvailableFunds());
}
@Test
public void refundingReturnsAllAvailableFunds() throws Exception {
creditor.addFunds(10);
int refund = creditor.refund();
assertEquals(10, refund);
}
@Test
public void refundingResetsAvailableFundsToZero() throws Exception {
creditor.addFunds(10);
creditor.refund();
assertEquals(0, creditor.getAvailableFunds());
}
@Test(expected = NotEnoughFunds.class)
public void moneyMoreThanFundsIsNotAllowed() throws Exception {
}
package com.teamtreehouse.vending;
public class Creditor {
private int funds;
public Creditor() {
funds = 0;
}
public void addFunds(int money) {
funds += money;
}
public void deduct(int money) throws NotEnoughFundsException {
if (money > funds) {
throw new NotEnoughFundsException();
}
funds -= money;
}
public int refund() {
int refund = funds;
funds = 0;
return refund;
}
public int getAvailableFunds() {
return funds;
}
}
package com.teamtreehouse.vending;
public class NotEnoughFundsException extends Exception {
}
2 Answers
Pedro Cabral
33,586 PointsThe class is called NotEnoughFundsException not NotEnoughFunds.
Enyang Mercy
Courses Plus Student 2,339 PointsThanks but the code still didnt run
Pedro Cabral
33,586 PointsIn your test you need to call the public method deduct(int) from the Creditor class. Since you do not have any funds to begin with, any value greater than 0 will have the exception being thrown. You could also add some funds and then deduct a value greater than the funds previously added. Both ways will meet the happy path.