Fixed tet coverage and fixed some edge cases

Author: sharara6

two-step-view/src/main/java/com/iluwatar/Book.java

@@ -23,15 +23,25 @@
  * THE SOFTWARE.
  */
 package com.iluwatar;
-import lombok.AllArgsConstructor;
 import lombok.Data;
 
 /** Represents a Book. */
-@AllArgsConstructor
 @Data
 public class Book {
   String name;
   double price;
   boolean discount;
   int stock;
+  Book(String name, double price, boolean discount, int stock) {
+    if (!name.isEmpty()) { // Make sure is not empty
+      this.name = name;
+    }
+    if (price > 0) { // Make sure price is set with a realistic value
+      this.price = price;
+    }
+    if (stock >= 0) { // Make sure stock is not negative
+      this.stock = stock;
+    }
+    this.discount = discount;
+  }
 }

two-step-view/src/main/java/com/iluwatar/BookStore.java

@@ -35,4 +35,5 @@ public class BookStore {
   double price;
   double discountPrice; // Calculates price if the book is discounted
   boolean inStock; // Indicates if the book is in stock
+
 }

two-step-view/src/test/java/com/iluwatar/BookStoreTest.java

@@ -5,6 +5,12 @@
 import static org.junit.Assert.*;
 
 
+
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import java.util.logging.Logger;
+
+
 public class BookStoreTest {
 
   @Test
@@ -40,4 +46,68 @@ public void testWithOutOfStock() {
     assertFalse(bookStoreOutOfStock.isInStock());
   }
 
+  @Test
+  public void testPrepareZeroPrice() {
+    Book book = new Book("Zero Price Book", 0.00, true, 5);
+    BookStore bookStore = DataPreparation.prepareBook(book);
+
+    assertNotNull(bookStore);
+    assertEquals(0.00, bookStore.getDiscountPrice(), 0.01);
+    assertTrue(bookStore.isInStock());
+  }
+
+  @Test
+  public void testPrepareNegativeStock() {
+    Book book = new Book("Negative Stock Book", 10.00, false, -1);
+    BookStore bookStore = DataPreparation.prepareBook(book);
+
+    assertNotNull(bookStore);
+    assertFalse(bookStore.isInStock());
+  }
+
+  @Test
+  public void testPresentInStock() {
+    BookStore bookInStock = new BookStore("Wonder Woman Vol. 1", 15.00, 12.00, true);
+    String htmlOutput = Presentation.presentBook(bookInStock);
+
+    assertNotNull(htmlOutput);
+    assertTrue(htmlOutput.contains("<h1>Wonder Woman Vol. 1</h1>"));
+    assertTrue(htmlOutput.contains("<p>Price: $15.0</p>"));
+    assertTrue(htmlOutput.contains("<p>Discounted Price: $12.0</p>"));
+    assertTrue(htmlOutput.contains("<p>Status: In Stock</p>"));
+  }
+
+  @Test
+  public void testPresentOutOfStock() {
+    BookStore bookOutOfStock = new BookStore("Wonder Woman Vol. 1", 15.00, 12.00, false);
+    String htmlOutput = Presentation.presentBook(bookOutOfStock);
+
+    assertNotNull(htmlOutput);
+    assertTrue(htmlOutput.contains("<h1>Wonder Woman Vol. 1</h1>"));
+    assertTrue(htmlOutput.contains("<p>Price: $15.0</p>"));
+    assertTrue(htmlOutput.contains("<p>Discounted Price: $12.0</p>"));
+    assertTrue(htmlOutput.contains("<p>Status: Out of Stock</p>"));
+  }
+
+  @Test
+  public void testMain() {
+    // Redirect System.out to capture logger output
+    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+    PrintStream printStream = new PrintStream(outputStream);
+    Logger.getLogger("").addHandler(new java.util.logging.ConsoleHandler() {
+      {
+        setOutputStream(printStream);
+      }
+    });
+
+    // Run the main method
+    App.main(new String[]{});
+
+    // Check output contains expected HTML
+    String loggedOutput = outputStream.toString();
+    assertTrue(loggedOutput.contains("<h1>Batman Vol. 1: The Court of Owls</h1>"));
+    assertTrue(loggedOutput.contains("<p>Price: $11.6</p>"));
+    assertTrue(loggedOutput.contains("<p>Discounted Price: $8.7</p>"));
+    assertTrue(loggedOutput.contains("<p>Status: In Stock</p>"));
+  }
 }