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36 changes: 5 additions & 31 deletions src/main/java/com/booleanuk/core/Article.java
Original file line number Diff line number Diff line change
@@ -1,35 +1,9 @@
package com.booleanuk.core;

public class Article {
String title;

boolean onLoan = false;

public Article(String title) {
this.title = title;
}

public boolean isOnLoan() {
return onLoan;
}

public String checkIn() {
if (!this.isOnLoan()) {
return "item is not currently on loan";
}

this.onLoan = false;

return "item has been checked in";
}

public String checkOut() {
if (this.isOnLoan()) {
return "item is currently on loan";
}

this.onLoan = true;

return "item has been checked out";
public class Article extends ReadMaterials{
Author author;
public Article(String title,Author author) {
super(title);
this.author = author;
}
}
13 changes: 13 additions & 0 deletions src/main/java/com/booleanuk/core/Author.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,13 @@
package com.booleanuk.core;

public class Author {
public String name;
public String email;
public String website;

public Author(String name, String email,String website){
this.name = name;
this.email = email;
this.website = website;
}
}
35 changes: 5 additions & 30 deletions src/main/java/com/booleanuk/core/Book.java
Original file line number Diff line number Diff line change
@@ -1,35 +1,10 @@
package com.booleanuk.core;

public class Book {
String title;

boolean onLoan = false;

public Book(String title) {
this.title = title;
}

public boolean isOnLoan() {
return onLoan;
public class Book extends ReadMaterials{
Author author;
public Book(String title,Author author) {
super(title);
this.author = author;
}

public String checkIn() {
if (!this.isOnLoan()) {
return "item is not currently on loan";
}

this.onLoan = false;

return "item has been checked in";
}

public String checkOut() {
if (this.isOnLoan()) {
return "item is currently on loan";
}

this.onLoan = true;

return "item has been checked out";
}
}
75 changes: 12 additions & 63 deletions src/main/java/com/booleanuk/core/Library.java
Original file line number Diff line number Diff line change
@@ -1,53 +1,24 @@
package com.booleanuk.core;

import java.util.ArrayList;
import java.util.List;

public class Library {
List<Article> articles;
List<Book> books;
List<Newspaper> newspapers;

public void addToStock(Article item) {
this.articles.add(item);
}
List<ReadMaterials> readMaterials;

public void addToStock(Book item) {
this.books.add(item);
public Library(){
this.readMaterials = new ArrayList<>();
}

public void addToStock(Newspaper item) {
this.newspapers.add(item);
public void addToStock(ReadMaterials item) {
this.readMaterials.add(item);
}

// The following methods may contain code that you are unfamiliar with. The strange syntax of article -> something
// is called a lambda expression (https://www.w3schools.com/java/java_lambda.asp)
public String checkInArticle(String title) {
List<Article> filtered = this.articles.stream()
.filter(article -> article.title.equals(title))
.toList();

if (filtered.size() < 1) {
return "item is not part of the library's collection";
}

return filtered.get(0).checkIn();
}

public String checkOutArticle(String title) {
List<Article> filtered = this.articles.stream()
.filter(article -> article.title.equals(title))
.toList();

if (filtered.size() < 1) {
return "item is not part of the library's collection";
}

return filtered.get(0).checkOut();
}

public String checkInBook(String title) {
List<Book> filtered = this.books.stream()
.filter(book -> book.title.equals(title))
public String checkInItem(String title) {
List<ReadMaterials> filtered = this.readMaterials.stream()
.filter(item -> item.title.equals(title))
.toList();

if (filtered.size() < 1) {
Expand All @@ -57,9 +28,9 @@ public String checkInBook(String title) {
return filtered.get(0).checkIn();
}

public String checkOutBook(String title) {
List<Book> filtered = this.books.stream()
.filter(book -> book.title.equals(title))
public String checkOutItem(String title) {
List<ReadMaterials> filtered = this.readMaterials.stream()
.filter(item -> item.title.equals(title))
.toList();

if (filtered.size() < 1) {
Expand All @@ -69,27 +40,5 @@ public String checkOutBook(String title) {
return filtered.get(0).checkOut();
}

public String checkInNewspaper(String title) {
List<Newspaper> filtered = this.newspapers.stream()
.filter(newspaper -> newspaper.title.equals(title))
.toList();

if (filtered.size() < 1) {
return "item is not part of the library's collection";
}

return filtered.get(0).checkIn();
}

public String checkOutNewspaper(String title) {
List<Newspaper> filtered = this.newspapers.stream()
.filter(newspaper -> newspaper.title.equals(title))
.toList();

if (filtered.size() < 1) {
return "item is not part of the library's collection";
}

return filtered.get(0).checkOut();
}
}
11 changes: 2 additions & 9 deletions src/main/java/com/booleanuk/core/Newspaper.java
Original file line number Diff line number Diff line change
@@ -1,16 +1,9 @@
package com.booleanuk.core;

public class Newspaper {
String title;

boolean onLoan = false;
public class Newspaper extends ReadMaterials {

public Newspaper(String title) {
this.title = title;
}

public boolean isOnLoan() {
return onLoan;
super(title);
}

public String checkIn() {
Expand Down
35 changes: 35 additions & 0 deletions src/main/java/com/booleanuk/core/ReadMaterials.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,35 @@
package com.booleanuk.core;

public class ReadMaterials {
public String title;
public boolean onLoan;

public ReadMaterials(String title){
this.title = title;
this.onLoan = false;
}

public boolean isOnLoan() {
return onLoan;
}

public String checkIn() {
if (!this.isOnLoan()) {
return "item is not currently on loan";
}

this.onLoan = false;

return "item has been checked in";
}

public String checkOut() {
if (this.isOnLoan()) {
return "item is currently on loan";
}

this.onLoan = true;

return "item has been checked out";
}
}
12 changes: 8 additions & 4 deletions src/test/java/com/booleanuk/core/ArticleTest.java
Original file line number Diff line number Diff line change
Expand Up @@ -6,29 +6,33 @@
class ArticleTest {
@Test
public void shouldCheckOutIfAvailable() {
Article article = new Article("JUnit Rocks");
Author author = new Author("Programmer Programmersom","[email protected]","prg.com");
Article article = new Article("JUnit Rocks",author);
Assertions.assertEquals("item has been checked out", article.checkOut());
}

@Test
public void shouldDeclineIfNotAvailableToCheckout() {
Article article = new Article("JUnit Rocks");
Author author = new Author("Programmer Programmersom","[email protected]","prg.com");
Article article = new Article("JUnit Rocks",author);
article.checkOut();

Assertions.assertEquals("item is currently on loan", article.checkOut());
}

@Test
public void shouldCheckInIfOnLoan() {
Article article = new Article("JUnit Rocks");
Author author = new Author("Programmer Programmersom","[email protected]","prg.com");
Article article = new Article("JUnit Rocks",author);
article.checkOut();

Assertions.assertEquals("item has been checked in", article.checkIn());
}

@Test
public void shouldDeclineCheckInIfNotOnLoan() {
Article article = new Article("JUnit Rocks");
Author author = new Author("Programmer Programmersom","[email protected]","prg.com");
Article article = new Article("JUnit Rocks",author);

Assertions.assertEquals("item is not currently on loan", article.checkIn());
}
Expand Down
12 changes: 8 additions & 4 deletions src/test/java/com/booleanuk/core/BookTest.java
Original file line number Diff line number Diff line change
Expand Up @@ -6,29 +6,33 @@
public class BookTest {
@Test
public void shouldCheckOutIfAvailable() {
Book book = new Book("JUnit Rocks");
Author author = new Author("Programmer Programmersom","[email protected]","prg.com");
Book book = new Book("JUnit Rocks",author);
Assertions.assertEquals("item has been checked out", book.checkOut());
}

@Test
public void shouldDeclineIfNotAvailableToCheckout() {
Book book = new Book("JUnit Rocks");
Author author = new Author("Programmer Programmersom","[email protected]","prg.com");
Book book = new Book("JUnit Rocks",author);
book.checkOut();

Assertions.assertEquals("item is currently on loan", book.checkOut());
}

@Test
public void shouldCheckInIfOnLoan() {
Book book = new Book("JUnit Rocks");
Author author = new Author("Programmer Programmersom","[email protected]","prg.com");
Book book = new Book("JUnit Rocks",author);
book.checkOut();

Assertions.assertEquals("item has been checked in", book.checkIn());
}

@Test
public void shouldDeclineCheckInIfNotOnLoan() {
Book book = new Book("JUnit Rocks");
Author author = new Author("Programmer Programmersom","[email protected]","prg.com");
Book book = new Book("JUnit Rocks",author);

Assertions.assertEquals("item is not currently on loan", book.checkIn());
}
Expand Down
39 changes: 39 additions & 0 deletions src/test/java/com/booleanuk/core/LibraryTest.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,39 @@
package com.booleanuk.core;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

import java.util.Arrays;

public class LibraryTest {
@Test
public void testAddBookToList(){
Author author = new Author("JRR","[email protected]","Tolkien.com");
ReadMaterials book = new Book("Lotr",author);
Library library = new Library();
library.addToStock(book);
Assertions.assertEquals(book, library.readMaterials.get(0));
}

@Test
public void testCheckOutItem(){
Author author = new Author("JRR","[email protected]","Tolkien.com");
ReadMaterials book = new Book("Lotr",author);
Library library = new Library();
library.addToStock(book);

library.checkOutItem("Lotr");
Assertions.assertTrue(book.onLoan);
}
@Test
public void testCheckInItem(){
Author author = new Author("JRR","[email protected]","Tolkien.com");
ReadMaterials book = new Book("Lotr",author);
Library library = new Library();
library.addToStock(book);

library.checkOutItem("Lotr");
library.checkInItem("Lotr");
Assertions.assertFalse(book.onLoan);
}
}