diff --git a/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/review/exception/NotValidReviewExcpetionTest.java b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/review/exception/NotValidReviewExcpetionTest.java
new file mode 100644
index 0000000..04d8a9a
--- /dev/null
+++ b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/review/exception/NotValidReviewExcpetionTest.java
@@ -0,0 +1,61 @@
+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;
+import org.junit.jupiter.params.provider.ValueSource;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+public class NotValidReviewExcpetionTest {
+
+    @Test
+    @DisplayName("Exception should be created with the provided message")
+    void testExceptionCreation() {
+        String errorMessage = "Review data is not valid";
+
+        NotValidReviewException exception = new NotValidReviewException(errorMessage);
+
+        assertEquals(errorMessage, exception.getMessage());
+    }
+
+    @ParameterizedTest
+    @ValueSource(strings = {
+            "Note is greater than or equal to 1",
+            "Note is less than or equal to 1",
+            "Comment cannot be empty"
+    })
+    @DisplayName("Exception should handle different validation messages")
+    void testExceptionWithDifferentMessages(String errorMessage) {
+        NotValidReviewException exception = new NotValidReviewException(errorMessage);
+
+        assertEquals(errorMessage, exception.getMessage());
+    }
+
+    @Test
+    @DisplayName("Exception should be properly thrown and caught")
+    void testExceptionCanBeThrownAndCaught() {
+        String errorMessage = "Comment field is empty";
+
+        Exception exception = assertThrows(NotValidReviewException.class, () -> {
+            throw new NotValidReviewException(errorMessage);
+        });
+
+        assertEquals(errorMessage, exception.getMessage());
+    }
+
+    @Test
+    @DisplayName("Exception should be catchable as a general Exception")
+    void testExceptionInheritance() {
+        String errorMessage = "Invalid review data";
+
+        try {
+            throw new NotValidReviewException(errorMessage);
+        } catch (Exception e) {
+            assertEquals(NotValidReviewException.class, e.getClass());
+            assertEquals(errorMessage, e.getMessage());
+        }
+    }
+}
diff --git a/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/review/validator/ReviewValidatorTest.java b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/review/validator/ReviewValidatorTest.java
new file mode 100644
index 0000000..0a53b0f
--- /dev/null
+++ b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/review/validator/ReviewValidatorTest.java
@@ -0,0 +1,114 @@
+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 org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+
+import java.time.LocalDate;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+public class ReviewValidatorTest {
+
+    @Test
+    @DisplayName("Should validate review with valid data")
+    void testValidateValidReview() {
+        LocalDate purchaseDate = LocalDate.of(2026, 3, 24);
+        ReviewInfo validReview = new ReviewInfo(3, "Bof", purchaseDate);
+
+        assertDoesNotThrow(() -> ReviewValidator.validate(validReview));
+    }
+
+    @Nested
+    @DisplayName("Note validation tests")
+    class NoteValidationTests {
+
+        @Test
+        @DisplayName("Should throw exception when note is lower than 1")
+        void testValidateNoteLower1() {
+            LocalDate purchaseDate = LocalDate.of(2026, 3, 24);
+            ReviewInfo reviewWithNoteLower1 = new ReviewInfo(0, "Bof", purchaseDate);
+
+            NotValidReviewException exception = assertThrows(
+                    NotValidReviewException.class,
+                    () -> ReviewValidator.validate(reviewWithNoteLower1)
+            );
+
+            assertEquals(ReviewValidator.NOTE_CANNOT_BE_LOWER_THAN_1, exception.getMessage());
+        }
+
+        @Test
+        @DisplayName("Should throw exception when note is upper than 5")
+        void testValidateNoteUpper5() {
+            LocalDate purchaseDate = LocalDate.of(2026, 3, 24);
+            ReviewInfo reviewWithNoteUpper5 = new ReviewInfo(6, "Bof", purchaseDate);
+
+            NotValidReviewException exception = assertThrows(
+                    NotValidReviewException.class,
+                    () -> ReviewValidator.validate(reviewWithNoteUpper5)
+            );
+
+            assertEquals(ReviewValidator.NOTE_CANNOT_BE_UPPER_THAN_5, exception.getMessage());
+        }
+    }
+
+    @Nested
+    @DisplayName("Comment validation tests")
+    class CommentValidationTests {
+
+        @Test
+        @DisplayName("Should throw exception when comment is blank")
+        void testValidateBlankComment() {
+            LocalDate purchaseDate = LocalDate.of(2026, 3, 24);
+            ReviewInfo reviewWithBlankComment = new ReviewInfo(6, "", purchaseDate);
+
+            NotValidReviewException exception = assertThrows(
+                    NotValidReviewException.class,
+                    () -> ReviewValidator.validate(reviewWithBlankComment)
+            );
+
+            assertEquals(ReviewValidator.COMMENT_CANNOT_BE_BLANK, exception.getMessage());
+        }
+
+        @ParameterizedTest
+        @ValueSource(strings = {" ", "  ", "\t", "\n"})
+        @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);
+
+            NotValidReviewException exception = assertThrows(
+                    NotValidReviewException.class,
+                    () -> ReviewValidator.validate(reviewWithBlankComment)
+            );
+
+            assertEquals(ReviewValidator.COMMENT_CANNOT_BE_BLANK, exception.getMessage());
+        }
+    }
+
+    @Nested
+    @DisplayName("Purchase date validation tests")
+    class PurchaseDateValidationTests {
+
+        @Test
+        @DisplayName("Should throw exception when purchase date is after the actual date")
+        void testValidateFuturPurchaseDate() {
+            LocalDate futurepurchaseDate = LocalDate.of(2026, 6, 24);
+            ReviewInfo reviewWithFuturPurchaseDate = new ReviewInfo(2, "Bof", futurepurchaseDate);
+
+            NotValidReviewException exception = assertThrows(
+                    NotValidReviewException.class,
+                    () -> ReviewValidator.validate(reviewWithFuturPurchaseDate)
+            );
+
+            assertEquals(ReviewValidator.PURCHASE_DATE_IS_NOT_VALID, exception.getMessage());
+        }
+    }
+}