additional answers mockito change repository method (#9082)

testing-modules/mockito-2/src/main/java/com/baeldung/mockito/additionalanswers/BookRepository.java

@@ -1,5 +1,9 @@
 package com.baeldung.mockito.additionalanswers;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+
 public class BookRepository {
     public Book getByBookId(Long bookId) {
         return new Book(bookId, "To Kill a Mocking Bird", "Harper Lee", 256);
@@ -9,9 +13,12 @@ public class BookRepository {
         return new Book(book.getBookId(), book.getTitle(), book.getAuthor(), book.getNumberOfPages());
     }
 
-    public Book checkIfEquals(Book bookOne, Book bookTwo, Book bookThree) {
-        if (bookOne.equals(bookTwo) && bookTwo.equals(bookThree) && bookThree.equals(bookOne)) {
-            return bookOne;
-        } else return bookTwo;
+    public Book selectRandomBook(Book bookOne, Book bookTwo, Book bookThree) {
+        List<Book> selection = new ArrayList<>();
+        selection.add(bookOne);
+        selection.add(bookTwo);
+        selection.add(bookThree);
+        Random random = new Random();
+        return selection.get(random.nextInt(selection.size()));
     }
 }

testing-modules/mockito-2/src/main/java/com/baeldung/mockito/additionalanswers/BookService.java

@@ -15,8 +15,8 @@ public class BookService {
         return bookRepository.save(book);
     }
 
-    public Book checkifEquals(Book book1, Book book2, Book book3) {
-        return bookRepository.checkIfEquals(book1, book2, book3);
+    public Book selectRandomBook(Book book1, Book book2, Book book3) {
+        return bookRepository.selectRandomBook(book1, book2, book3);
     }
 }