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Java Unit Testing in Java How to Test Single Assertions Make For Better Tests

Hallie MacDonald
PLUS
Hallie MacDonald
Courses Plus Student 224 Points

I am a total newb

I have no clue how to complete this challenge task (where you fix the test to separate the assertions). I am in way over my head. I'd like to navigate back to the first screen that pops up when you sign up for the free trial, which inquires as to the client's interests in coding. I have never written code before nor am I familiar with Java, C#, IntelliJ, etc. Is there like a Coding 101 step-by-step tutorial on your website? All I can find is links to various tracks, all of which seem to require that I have some basic knowledge of coding already. Am I missing something? Like an intro video?

com/teamtreehouse/vending/CreditorTest.java
package com.teamtreehouse.vending;

import org.junit.Test;

import static org.junit.Assert.*;

public class CreditorTest {

    @Test
    public void addingFundsIncrementsAvailableFunds() throws Exception {
        Creditor creditor = new Creditor();

        creditor.addFunds(25);
        creditor.addFunds(25);

        assertEquals(50, creditor.getAvailableFunds());
    }

    @Test
    public void refundingReturnsAllAvailableFunds() throws Exception {
        Creditor creditor = new Creditor();
        creditor.addFunds(10);

        int refund = creditor.refund();

        assertEquals(10, refund);
        assertEquals(0, creditor.getAvailableFunds());
    }refundingResetsAvailableFundsToZero() 
      Creditor crexitor = new Creditor();
  creditor.addFunds(10);

  int refund = creditor.refund();

  assertEquals(10, refund);
}
com/teamtreehouse/vending/Creditor.java
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;
    }

}

2 Answers

Adam Wilkins
Adam Wilkins
1,677 Points

I this your first challenge because you're way ahead of me and I'm most of the way through the track?