Setting up Book.java and a BookList.java files. Need to make sure the code in BookList is doing the correct stuff. How do I write a JUnit test for the BookList add method?

public class BookList implements Iterable {

//variables

public Book[] list; //list of books to draw from "underlying array"

public int size; //number of books in collection

//default constructor, initializing variables

public BookList() {

list = new Book[10];

size = 0; }

//alternate constructor creates bookList of books available to sell

public BookList(Book[] bookList) {

//does this work - in an alternate constructor, copying array?

//need to do for(int i = 0; i < list.length; i++) with copy[i] = list[i]?

list = bookList; size = list.length; }

//adds a book to the underlying array

public void add(Book book) {

if (size == list.length) {

ensureCapacity(); }

list[size] = book; size++; }

}

Code for Book.java:

public class Book {

String title; String author; double price; //price customer pays to buy the book from store owner double minPrice = 57.00; //minimum price? what use is this?

//default constructor method, initializing variables public Book() { title = ""; author = ""; price = 0.0; }

//alternate constructor method...modify to instantiate any new variables //created so they are not auto-initialized with inappropriate values public Book(String newTitle, String newAuthor, double newPrice) { title = newTitle; author = newAuthor; price = newPrice; }

public String getTitle() { return title; }

public String getAuthor() { return author; }

//price customer pays to buy the book from store owner public double getPrice() { return price; }

//cost to store owner to get the book in store? //public double getCost() { // return cost; //}

public String toString() { return ("Title: " + title + "\t" + "Author: " + author + "\t" + "Price: " + price);

}

}