diff --git a/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/reviews/converter/ReviewConverterTest.java b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/reviews/converter/ReviewConverterTest.java
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--- /dev/null
+++ b/src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/reviews/converter/ReviewConverterTest.java
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+package fr.iut_fbleau.but3.dev62.mylibrary.reviews.converter;
+
+import java.time.LocalDate;
+import java.util.UUID;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.CustomerDTO;
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.converter.CustomerConverter;
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.entity.Customer;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
+@DisplayName("ReviewConverterTest Unit Tests")
+public class ReviewConverterTest {
+
+    @Nested
+    @DisplayName("toDomain() method tests")
+    class ToDomainTests {
+
+        @Test
+        @DisplayName("Should convert ReviewInfo to Review domain object")
+        void shouldConvertReviewInfoToDomain() {
+            // Given
+            LocalDate date = LocalDate.of(2026, 3, 24);
+            ReviewInfo reviewInfo = new ReviewInfo(5, "tres bon livre", date);
+
+            // When
+            Review result = ReviewConverter.toDomain(reviewInfo);
+
+            // Then
+            assertNotNull(result);
+            assertEquals(reviewInfo.note(), result.getNote());
+            assertEquals(reviewInfo.comment(), result.getComment());
+            assertEquals(reviewInfo.purchaseDate(), result.getPurchaseDate());
+        }
+    }
+
+    @Nested
+    @DisplayName("toDTO() method tests")
+    class ToDTOTests {
+
+        @Test
+        @DisplayName("Should convert Review domain object to ReviewDTO with all fields mapped correctly")
+        void shouldConvertReviewToDTO() {
+            LocalDate date = LocalDate.of(2026, 3, 24);
+            Review review = Review.builder()
+                    .customerId(UUID.randomUUID())
+                    .bookId(UUID.randomUUID())
+                    .note(5)
+                    .comment("très bon livre")
+                    .purchaseDate(date)
+                    .build();
+
+            ReviewDTO result = ReviewConverter.toDTO(review);
+
+            assertNotNull(result);
+            assertEquals(review.getCustomerId(), result.getCustomerId());
+            assertEquals(review.getBookId(), result.getBookId());
+            assertEquals(review.getNote(), result.getNote());
+            assertEquals(review.getComment(), result.getComment());
+            assertEquals(review.getPurchaseDate(), result.getPurchaseDate());
+        }
+    }
+
+    @Test
+    @DisplayName("Should preserve empty string values during conversion")
+    void shouldPreserveEmptyStrings() {
+        LocalDate date = LocalDate.of(2026, 3, 24);
+        ReviewInfo reviewInfo = new ReviewInfo(5, "", date);
+
+        Review domainResult = ReviewConverter.toDomain(reviewInfo);
+        ReviewDTO dtoResult = ReviewConverter.toDTO(domainResult);
+
+        assertEquals(5, dtoResult.getNote());
+        assertEquals("", dtoResult.getComment());
+        assertEquals(date, dtoResult.getPurchaseDate());
+    }
+}