feat: adds Nataya's test files for book, patron, library and an excep…

…tion (#264)

* feat: Created test files for book, patron, library, and an exception

* added constructors to both book files

* feat: Created book, library, and patron files

lesson_09/oop/oop_app/src/main/java/com/codedifferently/lesson9/natayaprice/Book.java

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+package com.codedifferently.lesson9.natayaprice;
+
+public class Book {
+
+  private String Titles;
+  private int ISBN;
+  private String Authors;
+  private int TotalPages;
+  private boolean CheckedOut;
+
+  /**
+   * Constructs a new Book object.
+   *
+   * @param Titles the title of the book
+   * @param ISBN the ISBN number of the book
+   * @param Authors the author(s) of the book
+   * @param TotalPages the total number of pages in the book
+   * @param CheckedOut indicates whether the book is currently checked out
+   */
+  public Book(String Titles, int ISBN, String Authors, int TotalPages, boolean CheckedOut) {
+    this.Titles = Titles;
+    this.ISBN = ISBN;
+    this.Authors = Authors;
+    this.TotalPages = TotalPages;
+    this.CheckedOut = CheckedOut;
+  }
+
+  /**
+   * Gets the title of the book.
+   *
+   * @return the title of the book
+   */
+  public String getTitles() {
+    return Titles;
+  }
+
+  /**
+   * Gets the ISBN number of the book.
+   *
+   * @return the ISBN number of the book
+   */
+  public int getISBN() {
+    return ISBN;
+  }
+
+  /**
+   * Gets the author(s) of the book.
+   *
+   * @return the author(s) of the book
+   */
+  public String getAuthors() {
+    return Authors;
+  }
+
+  /**
+   * Gets the total number of pages in the book.
+   *
+   * @return the total number of pages in the book
+   */
+  public int getTotalPages() {
+    return TotalPages;
+  }
+
+  /**
+   * Checks if the book is currently checked out.
+   *
+   * @return true if the book is checked out, otherwise false
+   */
+  public boolean getCheckedOut() {
+    return CheckedOut;
+  }
+}

lesson_09/oop/oop_app/src/main/java/com/codedifferently/lesson9/natayaprice/Library.java

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+package com.codedifferently.lesson9.natayaprice;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Library {
+
+  private List<Book> books;
+  private List<Patron> patrons;
+
+  public Library() {
+    this.books = new ArrayList<>();
+    this.patrons = new ArrayList<>();
+  }
+
+  public void registerPatron(Patron patron) {
+    patrons.add(patron);
+  }
+
+  public List<Patron> getPatrons() {
+    return patrons;
+  }
+
+  public void addBook(Book book) {
+    books.add(book);
+  }
+
+  public List<Book> getBooks() {
+    return books;
+  }
+}

lesson_09/oop/oop_app/src/main/java/com/codedifferently/lesson9/natayaprice/Patron.java

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+package com.codedifferently.lesson9.natayaprice;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class Patron {
+
+  /**
+   * Constructs a new Patron with the specified name and email.
+   *
+   * @param name the name of the patron
+   * @param email the email of the patron
+   */
+  public Patron(String string, String string2) {
+    // TODO Auto-generated constructor stub
+  }
+
+  /**
+   * The main method to execute tests for Patron functionalities.
+   *
+   * @param args the command line arguments
+   */
+  public static void main(String[] args) {
+    testRegisterPatron();
+    testPatronBooksCheckedOutMap();
+  }
+
+  /** Tests the registration of a patron with the library. */
+  public static void testRegisterPatron() {
+    Patron patron = new Patron("John Doe", "[email protected]");
+    Library library = new Library();
+    library.registerPatron(patron);
+    System.out.println(
+        library.getPatrons().contains(patron)
+            ? "Patron should be registered with the library"
+            : "Patron is not registered with the library");
+  }
+
+  /** Tests the patron-books checked out map. */
+  public static void testPatronBooksCheckedOutMap() {
+    Map<String, Integer> patronBooksCheckedOutMap = new HashMap<>();
+    patronBooksCheckedOutMap.put("John Doe", 5);
+    patronBooksCheckedOutMap.put("Jane Smith", 3);
+    patronBooksCheckedOutMap.put("Alice Johnson", 0);
+
+    System.out.println(
+        patronBooksCheckedOutMap.get("John Doe") == 5
+            ? "John Doe should have 5 books checked out"
+            : "Incorrect number of books checked out for John Doe");
+    System.out.println(
+        patronBooksCheckedOutMap.get("Jane Smith") == 3
+            ? "Jane Smith should have 3 books checked out"
+            : "Incorrect number of books checked out for Jane Smith");
+    System.out.println(
+        patronBooksCheckedOutMap.get("Alice Johnson") == 0
+            ? "Alice Johnson should have 0 books checked out"
+            : "Incorrect number of books checked out for Alice Johnson");
+
+    System.out.println(
+        patronBooksCheckedOutMap.size() == 3
+            ? "Size of the map is correct"
+            : "Incorrect size of the map");
+
+    patronBooksCheckedOutMap.put("John Doe", 8);
+    System.out.println(
+        patronBooksCheckedOutMap.get("John Doe") == 8
+            ? "John Doe now has 8 books checked out"
+            : "Incorrect number of books checked out for John Doe");
+
+    System.out.println(
+        patronBooksCheckedOutMap.get("Nonexistent Patron") == null
+            ? "Nonexistent Patron is not found in the map"
+            : "Nonexistent Patron is found in the map");
+  }
+}

lesson_09/oop/oop_app/src/test/java/com/codedifferently/lesson9/natayaprice/BookTest.java

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+package com.codedifferently.lesson9.natayaprice;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import org.junit.jupiter.api.Test;
+
+public class BookTest {
+
+  /** Tests the constructor of the {@link Book} class. */
+  @Test
+  public void testConstructor() {
+    Book book = new Book("Title", 1234567890, "Author", 200, false);
+    assertEquals("Title", book.getTitles());
+    assertEquals(1234567890, book.getISBN());
+    assertEquals("Author", book.getAuthors());
+    assertEquals(200, book.getTotalPages());
+    assertFalse(book.getCheckedOut());
+  }
+
+  /** Tests the {@code getTitles()} method of the {@link Book} class. */
+  @Test
+  public void testGetTitle() {
+    Book book = new Book("Children of Blood and Bone", 972, "Tomi Adeyemi", 544, false);
+    assertEquals("Children of Blood and Bone", book.getTitles());
+  }
+
+  /** Tests the {@code getISBN()} method of the {@link Book} class. */
+  @Test
+  public void testGetISBN() {
+    Book book =
+        new Book("The Sisters Grimm:The Fairy-Tale Detectives", 571, "Michael Buckley", 176, true);
+    assertEquals(571, book.getISBN());
+  }
+
+  /** Tests the {@code getAuthors()} method of the {@link Book} class. */
+  @Test
+  public void testGetAuthors() {
+    Book book = new Book("A Light in the Attic", 739, "Shel Silverstein", 176, true);
+    assertEquals("Shel Silverstein", book.getAuthors());
+  }
+
+  /** Tests the {@code getTotalPages()} method of the {@link Book} class. */
+  @Test
+  public void testGetTotalPages() {
+    Book book =
+        new Book("Junie B. Jones and the Mushy Gushy Valentine", 408, "Barbara Park", 80, true);
+    assertEquals(80, book.getTotalPages());
+  }
+
+  /** Tests the {@code getCheckedOut()} method of the {@link Book} class. */
+  @Test
+  public void testGetCheckedOut() {
+    Book book =
+        new Book("Thirst: Human Urges, Fatal Consequences", 060, "Michael Farquhar", 384, false);
+    assertFalse(book.getCheckedOut());
+  }
+
+  @Test
+  public void testIsCheckedOut() {
+    Book book = new Book("Women Who Run with the Wolves", 874, "Clarissa Pinkola Estés", 560, true);
+    assertTrue(book.getCheckedOut());
+  }
+
+  /** Tests the {@code getCheckedIn()} method of the {@link Book} class. */
+  @Test
+  public void testGetCheckedIn() {
+    Book book = new Book("Beloved", 416, "Toni Morrison", 324, false);
+    assertFalse(book.getCheckedOut());
+  }
+}

lesson_09/oop/oop_app/src/test/java/com/codedifferently/lesson9/natayaprice/LibraryTest.java

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+package com.codedifferently.lesson9.natayaprice;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.List;
+import org.junit.jupiter.api.Test;
+
+public class LibraryTest {
+
+  @Test
+  public void testAddBook() {
+    Library library = new Library();
+    Book book =
+        new Book(
+            "The Sisters Grimm: The Fairy-Tale Detectives", 571, "Michael Buckley", 176, false);
+    library.addBook(book);
+    List<Book> booksInLibrary = library.getBooks();
+    // Assert that one book should be added to the library
+    assertEquals(1, booksInLibrary.size(), "One book should be added to the library");
+    // Assert that the added book is the same as the book in the library
+    assertEquals(
+        book, booksInLibrary.get(0), "Added book should be the same as the book in the library");
+  }
+}

lesson_09/oop/oop_app/src/test/java/com/codedifferently/lesson9/natayaprice/PatronTest.java

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+package com.codedifferently.lesson9.natayaprice;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.util.HashMap;
+import java.util.Map;
+import org.junit.jupiter.api.Test;
+
+public class PatronTest {
+
+  /** Tests the registration of a patron with the library. */
+  @Test
+  public void testRegisterPatron() {
+    Patron patron = new Patron("John Doe", "[email protected]");
+    Library library = new Library();
+    library.registerPatron(patron);
+    assertTrue(
+        library.getPatrons().contains(patron), "Patron should be registered with the library");
+  }
+
+  /** Tests the patron-books checked out map. */
+  @Test
+  public void testPatronBooksCheckedOutMap() {
+
+    Map<String, Integer> patronBooksCheckedOutMap = new HashMap<>();
+    patronBooksCheckedOutMap.put("John Doe", 5);
+    patronBooksCheckedOutMap.put("Jane Smith", 3);
+    patronBooksCheckedOutMap.put("Alice Johnson", 0);
+
+    assertEquals(5, patronBooksCheckedOutMap.get("John Doe").intValue());
+    assertEquals(3, patronBooksCheckedOutMap.get("Jane Smith").intValue());
+    assertEquals(0, patronBooksCheckedOutMap.get("Alice Johnson").intValue());
+
+    assertEquals(3, patronBooksCheckedOutMap.size());
+
+    patronBooksCheckedOutMap.put("John Doe", 8);
+    assertEquals(8, patronBooksCheckedOutMap.get("John Doe").intValue());
+
+    assertNull(patronBooksCheckedOutMap.get("Nonexistent Patron"));
+  }
+}