pom.xml

@@ -117,6 +117,11 @@
       <version>${mockito.version}</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter</artifactId>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/review/exception/NotValidReviewException.java

@@ -0,0 +1,7 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review.exception;
+
+public class NotValidReviewException extends RuntimeException {
+    public NotValidReviewException(String message) {
+        super(message);
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/review/validator/ReviewValidator.java

@@ -0,0 +1,52 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review.validator;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.exception.NotValidBookException;
+import fr.iut_fbleau.but3.dev62.mylibrary.review.ReviewInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.review.exception.NotValidReviewException;
+
+import java.time.LocalDate;
+
+public class ReviewValidator {
+
+    public static final String NOTE_CANNOT_BE_LOWER_THAN_1 = "Note is greater than or equal to 1";
+    public static final String NOTE_CANNOT_BE_UPPER_THAN_5 = "Note is less than or equal to 5";
+    public static final String COMMENT_CANNOT_BE_BLANK = "Comment cannot be blank";
+    public static final String PURCHASE_DATE_IS_NOT_VALID = "Date is not valid";
+
+    public ReviewValidator() {
+
+    }
+
+    public static void validate(ReviewInfo newReview) throws NotValidReviewException {
+        validateNoteLower1(newReview);
+        validateNoteUpper5(newReview);
+        validateComment(newReview);
+        validatePurchaseDate(newReview);
+    }
+
+    private static void validateNoteLower1(ReviewInfo newReview)
+            throws NotValidReviewException {
+        if (newReview.note() <= 1) {
+            throw new NotValidReviewException(NOTE_CANNOT_BE_LOWER_THAN_1);
+        }
+    }
+
+    private static void validateNoteUpper5(ReviewInfo newReview)
+            throws NotValidReviewException {
+        if (newReview.note() >= 5) {
+            throw new NotValidReviewException("Note is less than or equal to 5");
+        }
+    }
+
+    private static void validateComment(ReviewInfo newReview) throws NotValidReviewException {
+        if (newReview.comment().isBlank()) {
+            throw new NotValidReviewException(COMMENT_CANNOT_BE_BLANK);
+        }
+    }
+
+    private static void validatePurchaseDate(ReviewInfo newReview) throws NotValidReviewException {
+        if (newReview.purchaseDate().isAfter(LocalDate.now())) {
+            throw new NotValidReviewException(PURCHASE_DATE_IS_NOT_VALID);
+        }
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/review/exception/NotValidReviewExcpetionTest.java

@@ -1,6 +1,5 @@
 package fr.iut_fbleau.but3.dev62.mylibrary.review.exception;
 
-import fr.iut_fbleau.but3.dev62.mylibrary.customer.exception.NotValidCustomerException;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/review/validator/ReviewValidatorTest.java

@@ -1,8 +1,7 @@
 package fr.iut_fbleau.but3.dev62.mylibrary.review.validator;
 
-import fr.iut_fbleau.but3.dev62.mylibrary.book.exception.NotValidBookException;
-import fr.iut_fbleau.but3.dev62.mylibrary.book.validator.BookValidator;
 import fr.iut_fbleau.but3.dev62.mylibrary.review.ReviewInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.review.exception.NotValidReviewException;
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
@@ -67,7 +66,7 @@ public class ReviewValidatorTest {
         @DisplayName("Should throw exception when comment is blank")
         void testValidateBlankComment() {
             LocalDate purchaseDate = LocalDate.of(2026, 3, 24);
-            ReviewInfo reviewWithBlankComment = new ReviewInfo(6, "", purchaseDate);
+            ReviewInfo reviewWithBlankComment = new ReviewInfo(3, "", purchaseDate);
 
             NotValidReviewException exception = assertThrows(
                     NotValidReviewException.class,
@@ -82,7 +81,7 @@ public class ReviewValidatorTest {
         @DisplayName("Should throw exception when last name contains only whitespace")
         void testValidateWhitespaceLastName(String whitespace) {
             LocalDate purchaseDate = LocalDate.of(2026, 3, 24);
-            ReviewInfo reviewWithBlankComment = new ReviewInfo(6, whitespace, purchaseDate);
+            ReviewInfo reviewWithBlankComment = new ReviewInfo(3, whitespace, purchaseDate);
 
             NotValidReviewException exception = assertThrows(
                     NotValidReviewException.class,