Fini

.gitignore

@@ -8,6 +8,7 @@ target/
 .idea/jarRepositories.xml
 .idea/compiler.xml
 .idea/libraries/
+.idea/misc.xml
 *.iws
 *.iml
 *.ipr

.idea/.gitignore

@@ -0,0 +1,5 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Environment-dependent path to Maven home directory
+/mavenHomeManager.xml

.idea/encodings.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21_PREVIEW" project-jdk-name="ms-21" project-jdk-type="JavaSDK" />
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/Book.java

@@ -0,0 +1,50 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book;
+
+public class Book {
+    private String isbn;
+    private String title;
+    private String author;
+    private String publisher;
+    private String publicationDate;
+    private String price;
+    private String quantity;
+    private String language;
+
+    public Book(String isbn, String title, String author, String publisher,
+                String publicationDate, String price, String quantity, String language) {
+        this.isbn = isbn;
+        this.title = title;
+        this.author = author;
+        this.publisher = publisher;
+        this.publicationDate = publicationDate;
+        this.price = price;
+        this.quantity = quantity;
+        this.language = language;
+    }
+
+    public String getIsbn() {
+        return isbn;
+    }
+    public String getTitle() {
+        return title;
+    }
+    public String getAuthor() {
+        return author;
+    }
+    public String getPublisher() {
+        return publisher;
+    }
+    public String getPublicationDate() {
+        return publicationDate;
+    }
+    public String getPrice() {
+        return price;
+    }
+    public String getQuantity() {
+        return quantity;
+    }
+    public String getLanguage() {
+        return language;
+    }
+
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/BookManagement.java

@@ -0,0 +1,57 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.exception.*;
+
+import java.util.*;
+
+public class BookManagement {
+    private final Map<String, Book> books = new LinkedHashMap<>();
+
+    public boolean registerBook(Book book) throws InvalidBookDataException, DuplicateBookException {
+        if (!isValid(book)) {
+            throw new InvalidBookDataException("Invalid book data provided");
+        }
+        if (books.containsKey(book.getIsbn())) {
+            throw new DuplicateBookException("Conflict with existing book in database");
+        }
+        books.put(book.getIsbn(), book);
+        return true;
+    }
+
+    public List<Book> getAllBooks() {
+        return new ArrayList<>(books.values());
+    }
+
+    public Book getBookByIsbn(String isbn) throws BookNotFoundException {
+        if (!books.containsKey(isbn)) {
+            throw new BookNotFoundException("Book not found");
+        }
+        return books.get(isbn);
+    }
+
+    public List<Book> getBooksByTitle(String title) {
+        return books.values().stream()
+                .filter(book -> book.getTitle().equalsIgnoreCase(title))
+                .toList();
+    }
+
+    public int getBookCount() {
+        return books.size();
+    }
+
+    private boolean isValid(Book book) {
+        return book != null &&
+                notEmpty(book.getIsbn()) &&
+                notEmpty(book.getTitle()) &&
+                notEmpty(book.getAuthor()) &&
+                notEmpty(book.getPublisher()) &&
+                notEmpty(book.getPublicationDate()) &&
+                notEmpty(book.getPrice()) &&
+                notEmpty(book.getQuantity()) &&
+                notEmpty(book.getLanguage());
+    }
+
+    private boolean notEmpty(String value) {
+        return value != null && !value.isBlank();
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/exception/BookNotFoundException.java

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

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/exception/DuplicateBookException.java

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

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/exception/InvalidBookDataException.java

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

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/order/OrderDTO.java

@@ -0,0 +1,36 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order;
+
+import java.util.List;
+import java.util.UUID;
+
+public class OrderDTO {
+    private UUID id;
+    private UUID customerId;
+    private List<OrderInfo.OrderLineDto> orderLines;
+    private double totalPrice;
+    private double totalPriceToPay;
+    private OrderInfo.Address address;
+    private String paymentMethod;
+
+    // Getters et setters
+    public UUID getId() { return id; }
+    public void setId(UUID id) { this.id = id; }
+
+    public UUID getCustomerId() { return customerId; }
+    public void setCustomerId(UUID customerId) { this.customerId = customerId; }
+
+    public List<OrderInfo.OrderLineDto> getOrderLines() { return orderLines; }
+    public void setOrderLines(List<OrderInfo.OrderLineDto> orderLines) { this.orderLines = orderLines; }
+
+    public double getTotalPrice() { return totalPrice; }
+    public void setTotalPrice(double totalPrice) { this.totalPrice = totalPrice; }
+
+    public double getTotalPriceToPay() { return totalPriceToPay; }
+    public void setTotalPriceToPay(double totalPriceToPay) { this.totalPriceToPay = totalPriceToPay; }
+
+    public OrderInfo.Address getAddress() { return address; }
+    public void setAddress(OrderInfo.Address address) { this.address = address; }
+
+    public String getPaymentMethod() { return paymentMethod; }
+    public void setPaymentMethod(String paymentMethod) { this.paymentMethod = paymentMethod; }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/order/OrderInfo.java

@@ -0,0 +1,72 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order;
+
+import java.util.List;
+import java.util.UUID;
+
+public class OrderInfo {
+    private UUID customerId;
+    private List<OrderLineDto> orderLineDtos;
+    private Address address;
+    private String paymentMethod; // "CREDIT_CARD" ou "LOYALTY_POINTS"
+
+    // POJO interne pour OrderLineDto
+    public static class OrderLineDto {
+        private long bookId;
+        private int quantity;
+
+        public OrderLineDto() {}
+
+        public OrderLineDto(long bookId, int quantity) {
+            this.bookId = bookId;
+            this.quantity = quantity;
+        }
+
+        public long getBookId() { return bookId; }
+        public void setBookId(long bookId) { this.bookId = bookId; }
+
+        public int getQuantity() { return quantity; }
+        public void setQuantity(int quantity) { this.quantity = quantity; }
+    }
+
+    // POJO interne pour Address
+    public static class Address {
+        private String street;
+        private String city;
+        private String postalCode;
+        private String country;
+
+        public Address() {}
+
+        public Address(String street, String city, String postalCode, String country) {
+            this.street = street;
+            this.city = city;
+            this.postalCode = postalCode;
+            this.country = country;
+        }
+
+        public String getStreet() { return street; }
+        public void setStreet(String street) { this.street = street; }
+
+        public String getCity() { return city; }
+        public void setCity(String city) { this.city = city; }
+
+        public String getPostalCode() { return postalCode; }
+        public void setPostalCode(String postalCode) { this.postalCode = postalCode; }
+
+        public String getCountry() { return country; }
+        public void setCountry(String country) { this.country = country; }
+    }
+
+    // Getters et setters
+    public UUID getCustomerId() { return customerId; }
+    public void setCustomerId(UUID customerId) { this.customerId = customerId; }
+
+    public List<OrderLineDto> getOrderLineDtos() { return orderLineDtos; }
+    public void setOrderLineDtos(List<OrderLineDto> orderLineDtos) { this.orderLineDtos = orderLineDtos; }
+
+    public Address getAddress() { return address; }
+    public void setAddress(Address address) { this.address = address; }
+
+    public String getPaymentMethod() { return paymentMethod; }
+    public void setPaymentMethod(String paymentMethod) { this.paymentMethod = paymentMethod; }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/order/converter/OrderConverterTest.java

@@ -0,0 +1,4 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.converter;
+
+public class OrderConverterTest {
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/order/entity/Order.java

@@ -0,0 +1,34 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.entity;
+
+import java.util.List;
+import java.util.UUID;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.OrderInfo;
+
+public class Order {
+    private UUID id;
+    private UUID customerId;
+    private List<OrderInfo.OrderLineDto> orderLines;
+    private double totalPrice;
+    private double totalPriceToPay;
+    private OrderInfo.Address address;
+    private String paymentMethod;
+
+    public Order(UUID id, UUID customerId, List<OrderInfo.OrderLineDto> orderLines, double totalPrice, double totalPriceToPay, OrderInfo.Address address, String paymentMethod) {
+        this.id = id;
+        this.customerId = customerId;
+        this.orderLines = orderLines;
+        this.totalPrice = totalPrice;
+        this.totalPriceToPay = totalPriceToPay;
+        this.address = address;
+        this.paymentMethod = paymentMethod;
+    }
+
+    // Getters
+    public UUID getId() { return id; }
+    public UUID getCustomerId() { return customerId; }
+    public List<OrderInfo.OrderLineDto> getOrderLines() { return orderLines; }
+    public double getTotalPrice() { return totalPrice; }
+    public double getTotalPriceToPay() { return totalPriceToPay; }
+    public OrderInfo.Address getAddress() { return address; }
+    public String getPaymentMethod() { return paymentMethod; }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/order/exception/BookQuantityInsufficientException.java

@@ -0,0 +1,12 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.exception;
+
+import java.text.MessageFormat;
+
+public class BookQuantityInsufficientException extends Exception {
+
+    public static final String BOOK_QUANTITY_INSUFFICIENT = "Cannot order {0} books, only {1} in stock";
+
+    public BookQuantityInsufficientException(int requested, int available) {
+        super(MessageFormat.format(BOOK_QUANTITY_INSUFFICIENT, requested, available));
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/order/exception/InvalidOrderException.java

@@ -0,0 +1,16 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.exception;
+
+import java.text.MessageFormat;
+
+public class InvalidOrderException extends Exception {
+
+    public static final String INVALID_ORDER_DETAILS_OR_ADDRESS = "Invalid order details or address";
+
+    public InvalidOrderException() {
+        super(INVALID_ORDER_DETAILS_OR_ADDRESS);
+    }
+
+    public InvalidOrderException(String details) {
+        super(details);
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/order/exception/OrderNotFoundException.java

@@ -0,0 +1,13 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.exception;
+
+import java.text.MessageFormat;
+import java.util.UUID;
+
+public class OrderNotFoundException extends Exception {
+
+    public static final String THE_ORDER_WITH_ID_DOES_NOT_EXIST_MESSAGE = "The order with id {0} does not exist";
+
+    public OrderNotFoundException(UUID uuid) {
+        super(MessageFormat.format(THE_ORDER_WITH_ID_DOES_NOT_EXIST_MESSAGE, uuid));
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/order/repository/OrderRepository.java

@@ -0,0 +1,30 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.repository;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.order.OrderInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.entity.Order;
+
+import java.util.*;
+
+public class OrderRepository {
+
+    private final Map<UUID, Order> orders = new HashMap<>();
+
+    public Order save(OrderInfo info) {
+        UUID id = UUID.randomUUID();
+        Order order = new Order(
+            id,
+            info.getCustomerId(),
+            info.getOrderLineDtos(),
+            0.0, // totalPrice à calculer selon la logique métier
+            0.0, // totalPriceToPay à calculer
+            info.getAddress(),
+            info.getPaymentMethod()
+        );
+        orders.put(id, order);
+        return order;
+    }
+
+    public Optional<Order> findById(UUID id) {
+        return Optional.ofNullable(orders.get(id));
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/order/usecase/OrderUseCase.java

@@ -0,0 +1,45 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.usecase;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.order.OrderInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.OrderDTO;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.entity.Order;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.repository.OrderRepository;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.validator.OrderValidator;
+
+import java.util.Optional;
+import java.util.UUID;
+
+public class OrderUseCase {
+
+    private final OrderRepository repository;
+
+    public OrderUseCase(OrderRepository repository) {
+        this.repository = repository;
+    }
+
+    public OrderDTO createOrder(OrderInfo info) throws Exception {
+        if (!OrderValidator.isValidOrderInfo(info)) {
+            throw new IllegalArgumentException("Invalid order details or address");
+        }
+        // Ici, on suppose que le repository gère la logique métier (stock, client, etc.)
+        Order order = repository.save(info);
+        return toDto(order);
+    }
+
+    public Optional<OrderDTO> getOrderById(UUID id) {
+        Optional<Order> order = repository.findById(id);
+        return order.map(this::toDto);
+    }
+
+    private OrderDTO toDto(Order order) {
+        OrderDTO dto = new OrderDTO();
+        dto.setId(order.getId());
+        dto.setCustomerId(order.getCustomerId());
+        dto.setOrderLines(order.getOrderLines());
+        dto.setTotalPrice(order.getTotalPrice());
+        dto.setTotalPriceToPay(order.getTotalPriceToPay());
+        dto.setAddress(order.getAddress());
+        dto.setPaymentMethod(order.getPaymentMethod());
+        return dto;
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/order/validator/OrderValidator.java

@@ -0,0 +1,47 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.validator;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.order.OrderInfo;
+
+import java.util.List;
+import java.util.UUID;
+
+public class OrderValidator {
+
+    public static boolean isValidUUID(String uuid) {
+        try {
+            UUID.fromString(uuid);
+            return true;
+        } catch (Exception e) {
+            return false;
+        }
+    }
+
+    public static boolean isValidOrderInfo(OrderInfo info) {
+        if (info == null) return false;
+        if (info.getCustomerId() == null) return false;
+        if (info.getOrderLineDtos() == null || info.getOrderLineDtos().isEmpty()) return false;
+        if (info.getPaymentMethod() == null || info.getPaymentMethod().isBlank()) return false;
+
+        // Vérifie chaque ligne de commande
+        for (OrderInfo.OrderLineDto line : info.getOrderLineDtos()) {
+            if (line == null) return false;
+            if (line.getBookId() <= 0) return false;
+            if (line.getQuantity() <= 0) return false;
+        }
+
+        // Vérifie l'adresse
+        if (info.getAddress() == null) return false;
+        OrderInfo.Address addr = info.getAddress();
+        if (addr.getStreet() == null || addr.getStreet().isBlank()) return false;
+        if (addr.getCity() == null || addr.getCity().isBlank()) return false;
+        if (addr.getPostalCode() == null || addr.getPostalCode().isBlank()) return false;
+        if (addr.getCountry() == null || addr.getCountry().isBlank()) return false;
+
+        // Vérifie le mode de paiement
+        if (!info.getPaymentMethod().equals("CREDIT_CARD") && !info.getPaymentMethod().equals("LOYALTY_POINTS")) {
+            return false;
+        }
+
+        return true;
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/review/ReviewDto.java

@@ -0,0 +1,15 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review;
+
+import lombok.Builder;
+import lombok.Getter;
+import java.util.UUID;
+
+@Builder
+@Getter
+public class ReviewDto {
+    private UUID reviewId;
+    private long bookId;
+    private String customerName;
+    private String comment;
+    private int rating;
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/review/ReviewInfo.java

@@ -0,0 +1,13 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review;
+
+import lombok.Builder;
+import lombok.Getter;
+
+@Builder
+@Getter
+public class ReviewInfo {
+    private String customerId;
+    private long isbn;
+    private int rating;
+    private String comment;
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/review/converter/ReviewConverter.java

@@ -0,0 +1,31 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review.converter;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.review.entity.Review;
+import fr.iut_fbleau.but3.dev62.mylibrary.review.ReviewDto;
+import lombok.experimental.UtilityClass;
+
+@UtilityClass
+public class ReviewConverter {
+
+    public static ReviewDto toDto(Review review) {
+        if (review == null) return null;
+        return ReviewDto.builder()
+                .reviewId(review.getReviewId())
+                .bookId(review.getBookId())
+                .customerName(review.getCustomerName())
+                .comment(review.getComment())
+                .rating(review.getRating())
+                .build();
+    }
+
+    public static Review fromDto(ReviewDto dto) {
+        if (dto == null) return null;
+        return Review.builder()
+                .reviewId(dto.getReviewId())
+                .bookId(dto.getBookId())
+                .customerName(dto.getCustomerName())
+                .comment(dto.getComment())
+                .rating(dto.getRating())
+                .build();
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/review/entity/Review.java

@@ -0,0 +1,29 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review.entity;
+
+import lombok.Builder;
+import lombok.Getter;
+import java.util.Objects;
+import java.util.UUID;
+
+@Builder
+@Getter
+public class Review {
+    private UUID reviewId;
+    private long bookId;
+    private String customerName;
+    private String comment;
+    private int rating;
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (!(o instanceof Review)) return false;
+        Review review = (Review) o;
+        return Objects.equals(reviewId, review.reviewId);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(reviewId);
+    }
+}

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

@@ -0,0 +1,10 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review.exception;
+
+public class DuplicateReviewException extends RuntimeException {
+
+    public static final String REVIEW_ALREADY_EXISTS = "A review already exists for customer %s and book %s";
+
+    public DuplicateReviewException(String customerId, long bookId) {
+        super(String.format(REVIEW_ALREADY_EXISTS, customerId, String.valueOf(bookId)));
+    }
+}

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

@@ -0,0 +1,8 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review.exception;
+
+public class InvalidReviewException extends RuntimeException {
+
+    public InvalidReviewException(String message) {
+        super(message);
+    }
+}

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

@@ -0,0 +1,10 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review.exception;
+
+public class ReviewNotAllowedException extends RuntimeException {
+
+    public static final String REVIEW_NOT_ALLOWED = "Customer %s is not allowed to review book %s";
+
+    public ReviewNotAllowedException(String customerId, long bookId) {
+        super(String.format(REVIEW_NOT_ALLOWED, customerId, String.valueOf(bookId)));
+    }
+}

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

@@ -0,0 +1,12 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review.exception;
+
+import java.text.MessageFormat;
+
+public class ReviewNotFoundException extends RuntimeException {
+
+    public static final String REVIEW_NOT_FOUND = "The review with id {0} does not exist";
+
+    public ReviewNotFoundException(String reviewId) {
+        super(MessageFormat.format(REVIEW_NOT_FOUND, reviewId));
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/review/repository/ReviewRepository.java

@@ -0,0 +1,55 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review.repository;
+
+import java.util.*;
+
+public class ReviewRepository {
+    private final Map<String, Map<String, String>> reviews = new HashMap<>();
+
+    public void clear() {
+        reviews.clear();
+    }
+
+    public void save(Map<String, String> review) {
+        reviews.put(review.get("reviewId"), review);
+    }
+
+    public Map<String, String> findById(String reviewId) {
+        return reviews.get(reviewId);
+    }
+
+    public List<Map<String, String>> findAll() {
+        return new ArrayList<>(reviews.values());
+    }
+
+    public void deleteById(String reviewId) {
+        reviews.remove(reviewId);
+    }
+
+    public int count() {
+        return reviews.size();
+    }
+
+    public boolean existsById(String reviewId) {
+        return reviews.containsKey(reviewId);
+    }
+
+    public List<Map<String, String>> findByCustomerName(String customerName) {
+        List<Map<String, String>> result = new ArrayList<>();
+        for (Map<String, String> review : reviews.values()) {
+            if (review.get("customerName").equals(customerName)) {
+                result.add(review);
+            }
+        }
+        return result;
+    }
+
+    public List<Map<String, String>> findByBookId(String bookId) {
+        List<Map<String, String>> result = new ArrayList<>();
+        for (Map<String, String> review : reviews.values()) {
+            if (review.get("bookId").equals(bookId)) {
+                result.add(review);
+            }
+        }
+        return result;
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/review/usecase/ReviewUseCase.java

@@ -0,0 +1,53 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review.usecase;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.review.repository.ReviewRepository;
+import fr.iut_fbleau.but3.dev62.mylibrary.review.validator.ReviewValidator;
+
+import java.util.*;
+
+public class ReviewUseCase {
+
+    private final ReviewRepository repository;
+
+    public ReviewUseCase(ReviewRepository repository) {
+        this.repository = repository;
+    }
+
+    public String submitReview(Map<String, String> review) {
+        String customerId = review.get("customerId");
+        String isbn = review.get("isbn");
+        String rating = review.get("rating");
+
+        if (!ReviewValidator.isValidReviewDetails(customerId, isbn, rating)) {
+            throw new IllegalArgumentException("Invalid review details");
+        }
+
+        // Génère un UUID pour la review
+        String reviewId = UUID.randomUUID().toString();
+        review.put("reviewId", reviewId);
+        repository.save(review);
+        return reviewId;
+    }
+
+    public List<Map<String, String>> getReviewsByCustomerName(String customerName) {
+        return repository.findByCustomerName(customerName);
+    }
+
+    public List<Map<String, String>> getReviewsByBookId(String bookId) {
+        return repository.findByBookId(bookId);
+    }
+
+    public void deleteReview(String reviewId) {
+        if (!ReviewValidator.isValidUUID(reviewId)) {
+            throw new IllegalArgumentException("Invalid reviewId format");
+        }
+        if (!repository.existsById(reviewId)) {
+            throw new NoSuchElementException("Review not found");
+        }
+        repository.deleteById(reviewId);
+    }
+
+    public int countReviews() {
+        return repository.count();
+    }
+}

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

@@ -0,0 +1,22 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review.validator;
+
+import java.util.UUID;
+
+public class ReviewValidator {
+
+    public static boolean isValidUUID(String id) {
+        if (id == null) return false;
+        try {
+            UUID.fromString(id);
+            return true;
+        } catch (IllegalArgumentException e) {
+            return false;
+        }
+    }
+
+    public static boolean isValidReviewDetails(String customerId, String isbn, String rating) {
+        return customerId != null && !customerId.isBlank()
+            && isbn != null && !isbn.isBlank()
+            && rating != null && !rating.isBlank();
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/subscription/Subscription.java

@@ -0,0 +1,56 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.subscription;
+
+import java.time.LocalDate;
+
+public class Subscription {
+    private String subscriptionId;
+    private String customerId;
+    private int durationInMonths;
+    private LocalDate startDate;
+    private LocalDate endDate;
+
+    public Subscription(String subscriptionId, String customerId, int durationInMonths, LocalDate startDate) {
+        this.subscriptionId = subscriptionId;
+        this.customerId = customerId;
+        this.durationInMonths = durationInMonths;
+        this.startDate = startDate;
+        this.endDate = startDate.plusMonths(durationInMonths).minusDays(1);
+    }
+
+    public String getSubscriptionId() {
+        return subscriptionId;
+    }
+
+    public String getCustomerId() {
+        return customerId;
+    }
+
+    public int getDurationInMonths() {
+        return durationInMonths;
+    }
+
+    public LocalDate getStartDate() {
+        return startDate;
+    }
+
+    public LocalDate getEndDate() {
+        return endDate;
+    }
+
+    public void setSubscriptionId(String subscriptionId) {
+        this.subscriptionId = subscriptionId;
+    }
+
+    public void setCustomerId(String customerId) {
+        this.customerId = customerId;
+    }
+
+    public void setDurationInMonths(int durationInMonths) {
+        this.durationInMonths = durationInMonths;
+    }
+
+    public void setStartDate(LocalDate startDate) {
+        this.startDate = startDate;
+        this.endDate = startDate.plusMonths(durationInMonths).minusDays(1);
+    }
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/subscription/SubscriptionManagement.java

@@ -0,0 +1,48 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.subscription;
+
+import java.time.LocalDate;
+import java.util.*;
+
+public class SubscriptionManagement {
+    private final Map<String, Subscription> subscriptions = new HashMap<>();
+    private int subscriptionCounter = 1;
+
+    public Subscription createSubscription(String customerId, int duration, String paymentMethod, LocalDate startDate, Map<String, String> customer) throws Exception {
+        if (customerId == null || customerId.isBlank() ||
+                paymentMethod == null || paymentMethod.isBlank() ||
+                startDate == null) {
+            throw new IllegalArgumentException("Invalid subscription details or payment method");
+        }
+
+        if (customer == null) {
+            throw new IllegalArgumentException("Customer not found");
+        }
+
+        if (paymentMethod.equals("LOYALTY_POINTS")) {
+            int points = Integer.parseInt(customer.getOrDefault("loyaltyPoints", "0"));
+            if (points < duration * 10) {
+                throw new IllegalArgumentException("Not enough loyalty points");
+            }
+        }
+
+        String newId = "sub-" + (subscriptions.size() + 1);
+        Subscription sub = new Subscription(newId, customerId, duration, startDate);
+        subscriptions.put(newId, sub);
+        return sub;
+    }
+
+    public Subscription getSubscriptionForCustomer(String customerId) {
+        for (Subscription s : subscriptions.values()) {
+            if (s.getCustomerId().equals(customerId)) return s;
+        }
+        return null;
+    }
+
+    public int getSubscriptionCount() {
+        return subscriptions.size();
+    }
+
+    public Collection<Subscription> getAllSubscriptions() {
+        return subscriptions.values();
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/error/BookErrorTest.java

@@ -0,0 +1,54 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.error;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.*;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.exception.*;
+import org.junit.jupiter.api.*;
+import static org.junit.jupiter.api.Assertions.*;
+
+@DisplayName("Book error and failure scenarios")
+public class BookErrorTest {
+
+    private BookManagement bookManagement;
+
+    @BeforeEach
+    void setUp() {
+        bookManagement = new BookManagement();
+    }
+
+    @Test
+    @DisplayName("Registration fails when book data is invalid")
+    void testRegistrationFailsInvalidData() {
+        Book invalidBook = new Book("", "", "", "", "", "", "", "");
+        InvalidBookDataException exception = assertThrows(InvalidBookDataException.class, () -> {
+            bookManagement.registerBook(invalidBook);
+        });
+        assertTrue(exception.getMessage().contains("Invalid"));
+    }
+
+    @Test
+    @DisplayName("Registration fails when duplicate book ISBN")
+    void testRegistrationFailsDuplicateBook() throws Exception {
+        Book book = new Book("123", "Title", "Author", "Publisher", "2024-01-01", "10", "5", "FR");
+        bookManagement.registerBook(book);
+
+        DuplicateBookException exception = assertThrows(DuplicateBookException.class, () -> {
+            bookManagement.registerBook(book);
+        });
+        assertTrue(exception.getMessage().contains("Conflict"));
+    }
+
+    @Test
+    @DisplayName("Get book by ISBN throws BookNotFoundException if not found")
+    void testGetBookByIsbnNotFound() {
+        BookNotFoundException exception = assertThrows(BookNotFoundException.class, () -> {
+            bookManagement.getBookByIsbn("non-existent-isbn");
+        });
+        assertTrue(exception.getMessage().contains("not found"));
+    }
+
+    @Test
+    @DisplayName("Empty book list when no books registered")
+    void testEmptyBookList() {
+        assertTrue(bookManagement.getAllBooks().isEmpty());
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/function/BookFunctionTest.java

@@ -0,0 +1,148 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.function;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.*;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.exception.*;
+import org.junit.jupiter.api.*;
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.util.List;
+import java.util.Map;
+
+@DisplayName("Book retrieval scenarios and data registration")
+public class BookFunctionTest {
+
+    private BookManagement bookManagement;
+    private boolean lastOperationSuccess;
+    private String lastErrorMessage;
+    private List<Book> lastBookResult;
+    private Book lastSingleBookResult;
+
+    @BeforeEach
+    void setUp() {
+        bookManagement = new BookManagement();
+        lastOperationSuccess = false;
+        lastErrorMessage = null;
+        lastBookResult = null;
+        lastSingleBookResult = null;
+    }
+
+    @Test
+    @DisplayName("Register a new book with valid data")
+    void testRegisterNewBook() throws Exception {
+        Book newBook = new Book(
+                "999",
+                "La vie de Bob",
+                "Boby Bob",
+                "Bob",
+                "2025-01-01",
+                "29.99",
+                "10",
+                "FR"
+        );
+
+        try {
+            bookManagement.registerBook(newBook);
+            lastOperationSuccess = true;
+        } catch (InvalidBookDataException | DuplicateBookException e) {
+            lastOperationSuccess = false;
+            lastErrorMessage = e.getMessage();
+        }
+
+        assertTrue(lastOperationSuccess);
+        assertNull(lastErrorMessage);
+        assertEquals(1, bookManagement.getBookCount());
+    }
+
+    @Test
+    @DisplayName("Request all books")
+    void testRequestAllBooks() throws Exception {
+        bookManagement.registerBook(new Book("1", "Livre A", "Auteur", "Éditeur", "2024-01-01", "10", "1", "FR"));
+        bookManagement.registerBook(new Book("2", "Livre B", "Auteur", "Éditeur", "2024-01-01", "12", "1", "FR"));
+
+        lastBookResult = bookManagement.getAllBooks();
+
+        assertNotNull(lastBookResult);
+        assertEquals(2, lastBookResult.size());
+    }
+
+    @Test
+    @DisplayName("Request single book by ISBN")
+    void testRequestBookByIsbn() throws Exception {
+        Book book = new Book("123", "blabla", "Auteur", "Éditeur", "2024-01-01", "15", "1", "FR");
+        bookManagement.registerBook(book);
+
+        lastSingleBookResult = bookManagement.getBookByIsbn("123");
+
+        assertNotNull(lastSingleBookResult);
+        assertEquals("blabla", lastSingleBookResult.getTitle());
+    }
+
+    @Test
+    @DisplayName("Attempt to register a duplicate book")
+    void testRegisterDuplicateBook() {
+        Map<String, String> bookData = Map.of(
+                "isbn", "666",
+                "title", "La vie de Boby",
+                "author", "Boby Bob",
+                "publisher", "bob",
+                "publicationDate", "2025-01-01",
+                "price", "25.00",
+                "quantity", "10",
+                "language", "FR"
+        );
+
+        iRegisterANewBookWithTheFollowingInformation(bookData);
+        assertTrue(lastOperationSuccess);
+
+        iTryToRegisterANewBookWithTheFollowingInformation(bookData);
+        assertFalse(lastOperationSuccess);
+        assertNotNull(lastErrorMessage);
+        assertTrue(lastErrorMessage.contains("Conflict"));
+    }
+
+    public void iRegisterANewBookWithTheFollowingInformation(Map<String, String> row) {
+        Book newBook = new Book(
+                row.get("isbn"),
+                row.get("title"),
+                row.get("author"),
+                row.get("publisher"),
+                row.get("publicationDate"),
+                row.get("price"),
+                row.get("quantity"),
+                row.get("language")
+        );
+
+        try {
+            bookManagement.registerBook(newBook);
+            lastOperationSuccess = true;
+            lastErrorMessage = null;
+        } catch (InvalidBookDataException | DuplicateBookException e) {
+            lastOperationSuccess = false;
+            lastErrorMessage = e.getMessage();
+        }
+    }
+
+    void iTryToRegisterANewBookWithTheFollowingInformation(Map<String, String> row) {
+        iRegisterANewBookWithTheFollowingInformation(row);
+        if (lastOperationSuccess) {
+            lastOperationSuccess = false;
+            lastErrorMessage = "Expected failure but succeeded";
+        }
+    }
+
+    @Test
+    @DisplayName("Request all books with specific title")
+    void testRequestBooksByTitle() throws Exception {
+        bookManagement.registerBook(new Book("1", "Bien", "X", "Y", "2020", "1", "1", "FR"));
+        bookManagement.registerBook(new Book("2", "Troop", "X", "Y", "2020", "1", "1", "FR"));
+        bookManagement.registerBook(new Book("3", "Bien", "X", "Y", "2020", "1", "1", "FR"));
+
+        lastBookResult = bookManagement.getBooksByTitle("Bien");
+
+        assertNotNull(lastBookResult);
+        assertEquals(2, lastBookResult.size());
+        for (Book b : lastBookResult) {
+            assertEquals("Bien", b.getTitle());
+        }
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/result/BookResultTest.java

@@ -0,0 +1,61 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.result;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.Book;
+import org.junit.jupiter.api.*;
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@DisplayName("Book result success scenarios")
+public class BookResultTest {
+
+    private Map<String, Book> books;
+    private Book sampleBook;
+
+    @BeforeEach
+    void setUp() {
+        books = new HashMap<>();
+        books.put("123", new Book("123", "Livre A", "Auteur", "Éditeur", "2024-01-01", "10", "1", "FR"));
+        books.put("456", new Book("456", "Livre B", "Auteur", "Éditeur", "2024-01-01", "12", "2", "FR"));
+
+        sampleBook = new Book(
+                "888",
+                "La vie de Bob",
+                "Boby Bob",
+                "Bob",
+                "2025-01-01",
+                "29.99",
+                "10",
+                "FR"
+        );
+    }
+
+    @Test
+    @DisplayName("Book is successfully created with correct data")
+    void testBookCreation() {
+        assertEquals("888", sampleBook.getIsbn());
+        assertEquals("La vie de Bob", sampleBook.getTitle());
+        assertEquals("Boby Bob", sampleBook.getAuthor());
+        assertEquals("Bob", sampleBook.getPublisher());
+        assertEquals("2025-01-01", sampleBook.getPublicationDate());
+        assertEquals("29.99", sampleBook.getPrice());
+        assertEquals("10", sampleBook.getQuantity());
+        assertEquals("FR", sampleBook.getLanguage());
+    }
+
+    @Test
+    @DisplayName("Books map contains expected number of books")
+    void testBooksMapSize() {
+        assertEquals(2, books.size());
+    }
+
+    @Test
+    @DisplayName("Books map contains expected books")
+    void testBooksMapContent() {
+        assertTrue(books.containsKey("123"));
+        assertTrue(books.containsKey("456"));
+        assertEquals("Livre A", books.get("123").getTitle());
+        assertEquals("Livre B", books.get("456").getTitle());
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/features/book/BookSteps.java

@@ -0,0 +1,161 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.features.book;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.*;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.exception.*;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import io.cucumber.datatable.DataTable;
+import io.cucumber.java.en.*;
+
+import java.util.*;
+
+public class BookSteps {
+
+    private final BookManagement bookManagement = new BookManagement();
+    private List<Book> lastBookResult;
+    private Book lastSingleBookResult;
+    private String lastErrorMessage;
+    private boolean lastOperationSuccess;
+
+    // ----------------------------Background--------------------------------
+    @Given("the system has the following books:")
+    public void theSystemHasTheFollowingBooks(DataTable dataTable) {
+        for (Map<String, String> row : dataTable.asMaps(String.class, String.class)) {
+            try {
+                Book book = new Book(
+                        row.get("isbn"),
+                        row.get("title"),
+                        row.get("author"),
+                        row.get("publisher"),
+                        row.get("publicationDate"),
+                        row.get("price"),
+                        row.get("quantity"),
+                        row.get("language")
+                );
+                bookManagement.registerBook(book);
+            } catch (Exception ignored) {}
+        }
+    }
+
+    // ----------------------------Scénario 1 et 4 (succès ou échec)---------------------------------
+    @When("I register a new book with the following information:")
+    @When("I try to register a new book with the following information:")
+    public void iRegisterANewBookWithTheFollowingInformation(DataTable dataTable) {
+        Map<String, String> row = dataTable.asMaps(String.class, String.class).get(0);
+        try {
+            Book book = new Book(
+                    row.get("isbn"),
+                    row.get("title"),
+                    row.get("author"),
+                    row.get("publisher"),
+                    row.get("publicationDate"),
+                    row.get("price"),
+                    row.get("quantity"),
+                    row.get("language")
+            );
+            bookManagement.registerBook(book);
+            lastOperationSuccess = true;
+            lastErrorMessage = null;
+        } catch (InvalidBookDataException | DuplicateBookException e) {
+            lastOperationSuccess = false;
+            lastErrorMessage = e.getMessage();
+        }
+    }
+
+    @Then("the book is successfully registered")
+    public void theBookIsSuccessfullyRegistered() {
+        assertTrue(lastOperationSuccess);
+    }
+
+    @Then("the registration fails")
+    public void theRegistrationFails() {
+        assertFalse(lastOperationSuccess);
+    }
+
+    @And("I receive an error message containing {string}")
+    public void iReceiveAnErrorMessageContaining(String msg) {
+        assertNotNull(lastErrorMessage);
+        assertTrue(lastErrorMessage.contains(msg));
+    }
+
+    @And("the system now has {int} books")
+    @And("the system still has {int} books")
+    public void theSystemHasBooks(int expectedCount) {
+        assertEquals(expectedCount, bookManagement.getBookCount());
+    }
+
+    // ----------------------------Scénario 2---------------------------------
+    @When("I request all books")
+    public void iRequestAllBooks() {
+        lastBookResult = bookManagement.getAllBooks();
+        lastOperationSuccess = true;
+        lastErrorMessage = null;
+    }
+
+    @Then("I receive the following books:")
+    public void iReceiveTheFollowingBooks(DataTable expectedTable) {
+        List<Map<String, String>> expected = expectedTable.asMaps(String.class, String.class);
+        assertNotNull(lastBookResult);
+        assertEquals(expected.size(), lastBookResult.size());
+
+        for (int i = 0; i < expected.size(); i++) {
+            Book actual = lastBookResult.get(i);
+            Map<String, String> expectedBook = expected.get(i);
+            assertEquals(expectedBook.get("isbn"), actual.getIsbn());
+            assertEquals(expectedBook.get("title"), actual.getTitle());
+            assertEquals(expectedBook.get("author"), actual.getAuthor());
+            assertEquals(expectedBook.get("publisher"), actual.getPublisher());
+            assertEquals(expectedBook.get("publicationDate"), actual.getPublicationDate());
+            assertEquals(expectedBook.get("price"), actual.getPrice());
+            assertEquals(expectedBook.get("quantity"), actual.getQuantity());
+            assertEquals(expectedBook.get("language"), actual.getLanguage());
+        }
+    }
+
+    // ----------------------------Scénario 3---------------------------------
+    @When("I request the book with id {string}")
+    public void iRequestTheBookWithId(String isbn) {
+        try {
+            lastSingleBookResult = bookManagement.getBookByIsbn(isbn);
+            lastOperationSuccess = true;
+            lastErrorMessage = null;
+        } catch (BookNotFoundException e) {
+            lastOperationSuccess = false;
+            lastErrorMessage = e.getMessage();
+        }
+    }
+
+    @Then("I receive the following book information:")
+    public void iReceiveTheFollowingBookInformation(DataTable expectedTable) {
+        Map<String, String> expectedBook = expectedTable.asMaps(String.class, String.class).get(0);
+        assertNotNull(lastSingleBookResult);
+        assertEquals(expectedBook.get("isbn"), lastSingleBookResult.getIsbn());
+        assertEquals(expectedBook.get("title"), lastSingleBookResult.getTitle());
+        assertEquals(expectedBook.get("author"), lastSingleBookResult.getAuthor());
+        assertEquals(expectedBook.get("publisher"), lastSingleBookResult.getPublisher());
+        assertEquals(expectedBook.get("publicationDate"), lastSingleBookResult.getPublicationDate());
+        assertEquals(expectedBook.get("price"), lastSingleBookResult.getPrice());
+        assertEquals(expectedBook.get("quantity"), lastSingleBookResult.getQuantity());
+        assertEquals(expectedBook.get("language"), lastSingleBookResult.getLanguage());
+    }
+
+    // ----------------------------Scénario 6---------------------------------
+    @When("I request all books with title {string}")
+    public void iRequestAllBooksWithTitle(String titleFilter) {
+        lastBookResult = bookManagement.getBooksByTitle(titleFilter);
+        lastOperationSuccess = true;
+        lastErrorMessage = null;
+    }
+
+    @Then("I receive an empty list of books")
+    public void iReceiveAnEmptyListOfBooks() {
+        assertNotNull(lastBookResult);
+        assertTrue(lastBookResult.isEmpty());
+    }
+
+    @When("the request fails")
+    public void theRequestFails() {
+        assertFalse(lastOperationSuccess);
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/features/client/CustomerSteps.java

@@ -14,6 +14,8 @@ import fr.iut_fbleau.but3.dev62.mylibrary.customer.exception.IllegalCustomerPoin
 import fr.iut_fbleau.but3.dev62.mylibrary.customer.exception.NotValidCustomerException;
 import fr.iut_fbleau.but3.dev62.mylibrary.customer.repository.CustomerRepository;
 import fr.iut_fbleau.but3.dev62.mylibrary.customer.usecase.CustomerUseCase;
+import io.cucumber.datatable.DataTable;
+
 import io.cucumber.datatable.DataTable;
 import io.cucumber.java.en.And;
 import io.cucumber.java.en.Given;

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/features/order/OrderSteps.java

@@ -0,0 +1,177 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.features.order;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import io.cucumber.datatable.DataTable;
+import io.cucumber.java.en.And;
+import io.cucumber.java.en.Given;
+import io.cucumber.java.en.Then;
+import io.cucumber.java.en.When;
+
+import java.util.*;
+
+public class OrderSteps {
+
+    private final Map<String, Map<String, String>> customers = new HashMap<>();
+    private final Map<Long, Map<String, String>> books = new HashMap<>();
+    private final Map<String, Map<String, String>> orders = new HashMap<>();
+    private String lastOrderId;
+    private String lastOrderError;
+    private boolean lastOrderSuccess;
+    private Map<String, String> lastOrderFetched;
+
+    @Given("the order system has the following customers:")
+    public void theOrderSystemHasTheFollowingCustomers(DataTable dataTable) {
+        customers.clear();
+        for (Map<String, String> row : dataTable.asMaps(String.class, String.class)) {
+            customers.put(row.get("id"), new HashMap<>(row));
+        }
+        assertEquals(dataTable.asMaps().size(), customers.size());
+    }
+
+    @And("the order system has the following books:")
+    public void theOrderSystemHasTheFollowingBooks(DataTable dataTable) {
+        books.clear();
+        for (Map<String, String> row : dataTable.asMaps(String.class, String.class)) {
+            books.put(Long.parseLong(row.get("isbn")), new HashMap<>(row));
+        }
+        assertEquals(dataTable.asMaps().size(), books.size());
+    }
+
+    @And("the order system has the following orders:")
+    public void theOrderSystemHasTheFollowingOrders(DataTable dataTable) {
+        orders.clear();
+        for (Map<String, String> row : dataTable.asMaps(String.class, String.class)) {
+            orders.put(row.get("id"), new HashMap<>(row));
+        }
+        assertEquals(dataTable.asMaps().size(), orders.size());
+    }
+
+    @When("I create a new order with the following information:")
+    public void iCreateANewOrderWithTheFollowingInformation(DataTable dataTable) {
+        Map<String, String> info = dataTable.asMaps(String.class, String.class).getFirst();
+        String customerId = info.get("customerId");
+        String paymentMethod = info.get("paymentMethod");
+        String orderLineDtos = info.get("orderLineDtos");
+        String addressStreet = info.get("addressStreet");
+        String addressCity = info.get("addressCity");
+        String addressPostalCode = info.get("addressPostalCode");
+        String addressCountry = info.get("addressCountry");
+
+        // Validation simple
+        if (customerId == null || customerId.isBlank() ||
+            paymentMethod == null || paymentMethod.isBlank() ||
+            orderLineDtos == null || orderLineDtos.isBlank() ||
+            addressStreet == null || addressStreet.isBlank() ||
+            addressCity == null || addressCity.isBlank() ||
+            addressPostalCode == null || addressPostalCode.isBlank() ||
+            addressCountry == null || addressCountry.isBlank()) {
+            lastOrderSuccess = false;
+            lastOrderError = "Invalid order details or address";
+            return;
+        }
+        if (!customers.containsKey(customerId)) {
+            lastOrderSuccess = false;
+            lastOrderError = "Customer not found";
+            return;
+        }
+
+        try {
+            String content = orderLineDtos.replace("[", "").replace("]", "").replace("{", "").replace("}", "");
+            String[] pairs = content.split(",");
+            Long bookId = null;
+            int quantity = 0;
+            for (String pair : pairs) {
+                String[] kv = pair.trim().replace("\"", "").split(":");
+                if (kv.length == 2) {
+                    if (kv[0].trim().equals("bookId")) bookId = Long.parseLong(kv[1].trim());
+                    if (kv[0].trim().equals("quantity")) quantity = Integer.parseInt(kv[1].trim());
+                }
+            }
+            if (bookId == null || !books.containsKey(bookId)) {
+                lastOrderSuccess = false;
+                lastOrderError = "Invalid order details or address";
+                return;
+            }
+            int stock = Integer.parseInt(books.get(bookId).get("quantity"));
+            if (quantity > stock) {
+                lastOrderSuccess = false;
+                lastOrderError = "book quantity insufficient";
+                return;
+            }
+            // Décrémente le stock fictivement
+            books.get(bookId).put("quantity", String.valueOf(stock - quantity));
+            // Création de la commande
+            String newOrderId = "ord-" + (orders.size() + 1);
+            Map<String, String> order = new HashMap<>();
+            order.put("id", newOrderId);
+            order.put("customerId", customerId);
+            order.put("totalPrice", String.valueOf(
+                Double.parseDouble(books.get(bookId).get("price")) * quantity
+            ));
+            order.put("paymentMethod", paymentMethod);
+            orders.put(newOrderId, order);
+            lastOrderId = newOrderId;
+            lastOrderSuccess = true;
+            lastOrderError = null;
+        } catch (Exception e) {
+            lastOrderSuccess = false;
+            lastOrderError = "Invalid order details or address";
+        }
+    }
+
+    @Then("the order is created successfully")
+    public void theOrderIsCreatedSuccessfully() {
+        assertTrue(lastOrderSuccess);
+        assertNotNull(lastOrderId);
+    }
+
+    @And("the order system now has {int} orders")
+    public void theOrderSystemNowHasOrders(int expected) {
+        assertEquals(expected, orders.size());
+    }
+
+    @When("I request the order with id {string}")
+    public void iRequestTheOrderWithId(String id) {
+        lastOrderFetched = orders.get(id);
+        lastOrderSuccess = lastOrderFetched != null;
+        if (!lastOrderSuccess) lastOrderError = "Order not found";
+    }
+
+    @Then("I receive the following order information:")
+    public void iReceiveTheFollowingOrderInformation(DataTable dataTable) {
+        Map<String, String> expected = dataTable.asMaps(String.class, String.class).getFirst();
+        assertNotNull(lastOrderFetched);
+        for (String key : expected.keySet()) {
+            assertEquals(expected.get(key), lastOrderFetched.get(key));
+        }
+    }
+
+    @When("I try to create a new order with the following information:")
+    public void iTryToCreateANewOrderWithTheFollowingInformation(DataTable dataTable) {
+        iCreateANewOrderWithTheFollowingInformation(dataTable);
+    }
+
+    @Then("the order creation fails")
+    public void theOrderCreationFails() {
+        assertFalse(lastOrderSuccess);
+        assertNotNull(lastOrderError);
+    }
+
+    @And("I receive an order error message containing {string}")
+    public void iReceiveAnOrderErrorMessageContaining(String msg) {
+        assertNotNull(lastOrderError);
+        assertTrue(lastOrderError.contains(msg), "Expected error message to contain: \"" + msg + "\" but was: \"" + lastOrderError + "\"");
+    }
+
+    @And("the order system still has {int} order")
+    public void theOrderSystemStillHasOrder(int expected) {
+        assertEquals(expected, orders.size());
+    }
+
+    @Then("the order request fails")
+    public void theOrderRequestFails() {
+        assertFalse(lastOrderSuccess);
+        assertNotNull(lastOrderError);
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/features/review/ReviewSteps.java

@@ -0,0 +1,222 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.features.review;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import io.cucumber.datatable.DataTable;
+import io.cucumber.java.en.And;
+import io.cucumber.java.en.Given;
+import io.cucumber.java.en.Then;
+import io.cucumber.java.en.When;
+
+import java.util.*;
+import java.util.UUID;
+
+public class ReviewSteps {
+
+    private final Map<String, Map<String, String>> customers = new HashMap<>();
+    private final Map<Long, Map<String, String>> books = new HashMap<>();
+    private final Map<String, Map<String, String>> reviews = new HashMap<>();
+    private final Set<String> purchases = new HashSet<>(); // Ajout pour les achats
+    private String lastReviewId;
+    private String lastReviewError;
+    private boolean lastReviewSuccess;
+    private List<Map<String, String>> lastReviewsFetched;
+
+    @Given("the review system has the following review customers:")
+    public void theReviewSystemHasTheFollowingReviewCustomers(DataTable dataTable) {
+        customers.clear();
+        for (Map<String, String> row : dataTable.asMaps(String.class, String.class)) {
+            customers.put(row.get("id"), new HashMap<>(row));
+        }
+        assertEquals(dataTable.asMaps().size(), customers.size());
+    }
+
+    @And("the review system has the following review books:")
+    public void theReviewSystemHasTheFollowingReviewBooks(DataTable dataTable) {
+        books.clear();
+        for (Map<String, String> row : dataTable.asMaps(String.class, String.class)) {
+            books.put(Long.parseLong(row.get("isbn")), new HashMap<>(row));
+        }
+        assertEquals(dataTable.asMaps().size(), books.size());
+    }
+
+    @And("the review system has the following reviews:")
+    public void theReviewSystemHasTheFollowingReviews(DataTable dataTable) {
+        reviews.clear();
+        for (Map<String, String> row : dataTable.asMaps(String.class, String.class)) {
+            // On stocke le reviewId comme String mais il doit être un UUID valide
+            String reviewId = row.get("reviewId");
+            UUID.fromString(reviewId); // Valide que c'est bien un UUID
+            reviews.put(reviewId, new HashMap<>(row));
+        }
+        assertEquals(dataTable.asMaps().size(), reviews.size());
+    }
+
+    @And("the review system has the following purchases:")
+    public void theReviewSystemHasTheFollowingPurchases(DataTable dataTable) {
+        purchases.clear();
+        for (Map<String, String> row : dataTable.asMaps(String.class, String.class)) {
+            String customerId = row.get("customerId");
+            String bookId = row.get("bookId");
+            purchases.add(customerId + ":" + bookId);
+        }
+    }
+
+    @When("I submit a new review with the following information:")
+    public void iSubmitANewReviewWithTheFollowingInformation(DataTable dataTable) {
+        Map<String, String> info = dataTable.asMaps(String.class, String.class).getFirst();
+        String customerId = info.get("customerId");
+        String isbnStr = info.get("isbn");
+        String rating = info.get("rating");
+        String comment = info.get("comment");
+
+        if (customerId == null || customerId.isBlank() ||
+            isbnStr == null || isbnStr.isBlank() ||
+            rating == null || rating.isBlank()) {
+            lastReviewSuccess = false;
+            lastReviewError = "Invalid review details";
+            return;
+        }
+        if (!customers.containsKey(customerId) || !books.containsKey(Long.parseLong(isbnStr))) {
+            lastReviewSuccess = false;
+            lastReviewError = "Book or customer not found";
+            return;
+        }
+        for (Map<String, String> review : reviews.values()) {
+            if (review.get("customerName").equals(customers.get(customerId).get("firstName") + " " + customers.get(customerId).get("lastName"))
+                && review.get("bookId").equals(isbnStr)) {
+                lastReviewSuccess = false;
+                lastReviewError = "Review already exists";
+                return;
+            }
+        }
+        if (!purchases.contains(customerId + ":" + isbnStr)) {
+            lastReviewSuccess = false;
+            lastReviewError = "customer hasn't purchased the book";
+            return;
+        }
+        String newReviewId = UUID.randomUUID().toString();
+        Map<String, String> review = new HashMap<>();
+        review.put("reviewId", newReviewId);
+        review.put("bookId", isbnStr);
+        review.put("customerName", customers.get(customerId).get("firstName") + " " + customers.get(customerId).get("lastName"));
+        review.put("comment", comment);
+        review.put("rating", rating);
+        reviews.put(newReviewId, review);
+        lastReviewId = newReviewId;
+        lastReviewSuccess = true;
+        lastReviewError = null;
+    }
+
+    @Then("the review is created successfully")
+    public void theReviewIsCreatedSuccessfully() {
+        assertTrue(lastReviewSuccess);
+        assertNotNull(lastReviewId);
+    }
+
+    @And("the review system now has {int} reviews")
+    public void theReviewSystemNowHasReviews(int expected) {
+        assertEquals(expected, reviews.size());
+    }
+
+    @When("I request all reviews by customer {string}")
+    public void iRequestAllReviewsByCustomer(String customerId) {
+        lastReviewsFetched = new ArrayList<>();
+        if (!customers.containsKey(customerId)) {
+            lastReviewSuccess = false;
+            lastReviewError = "Book or customer not found";
+            return;
+        }
+        String customerName = customers.get(customerId).get("firstName") + " " + customers.get(customerId).get("lastName");
+        for (Map<String, String> review : reviews.values()) {
+            if (review.get("customerName").equals(customerName)) {
+                lastReviewsFetched.add(review);
+            }
+        }
+        lastReviewSuccess = true;
+        lastReviewError = null;
+    }
+
+    @Then("I receive the following reviews:")
+    public void iReceiveTheFollowingReviews(DataTable dataTable) {
+        List<Map<String, String>> expected = dataTable.asMaps(String.class, String.class);
+        assertEquals(expected.size(), lastReviewsFetched.size());
+        for (int i = 0; i < expected.size(); i++) {
+            Map<String, String> exp = expected.get(i);
+            Map<String, String> act = lastReviewsFetched.get(i);
+            for (String key : exp.keySet()) {
+                assertEquals(exp.get(key), act.get(key));
+            }
+        }
+    }
+
+    @When("I try to submit a new review with the following information:")
+    public void iTryToSubmitANewReviewWithTheFollowingInformation(DataTable dataTable) {
+        iSubmitANewReviewWithTheFollowingInformation(dataTable);
+    }
+
+    @Then("the review submission fails")
+    public void theReviewSubmissionFails() {
+        assertFalse(lastReviewSuccess);
+        assertNotNull(lastReviewError);
+    }
+
+    @And("I receive a review error message containing {string}")
+    public void iReceiveAReviewErrorMessageContaining(String msg) {
+        assertNotNull(lastReviewError);
+        assertTrue(lastReviewError.contains(msg), "Expected error message to contain: \"" + msg + "\" but was: \"" + lastReviewError + "\"");
+    }
+
+    @And("the review system still has {int} review")
+    public void theReviewSystemStillHasReview(int expected) {
+        assertEquals(expected, reviews.size());
+    }
+
+    @When("I request all reviews for book {string}")
+    public void iRequestAllReviewsForBook(String isbnStr) {
+        lastReviewsFetched = new ArrayList<>();
+        if (!books.containsKey(Long.parseLong(isbnStr))) {
+            lastReviewSuccess = false;
+            lastReviewError = "Book or customer not found";
+            return;
+        }
+        for (Map<String, String> review : reviews.values()) {
+            if (review.get("bookId").equals(isbnStr)) {
+                lastReviewsFetched.add(review);
+            }
+        }
+        lastReviewSuccess = true;
+        lastReviewError = null;
+    }
+
+    @Then("the review request fails")
+    public void theReviewRequestFails() {
+        assertFalse(lastReviewSuccess);
+        assertNotNull(lastReviewError);
+    }
+
+    @When("I try to delete the review with id {string}")
+    public void iTryToDeleteTheReviewWithId(String reviewId) {
+        try {
+            UUID.fromString(reviewId); // Vérifie que c'est bien un UUID
+        } catch (IllegalArgumentException e) {
+            lastReviewSuccess = false;
+            lastReviewError = "Invalid reviewId format";
+            return;
+        }
+        if (!reviews.containsKey(reviewId)) {
+            lastReviewSuccess = false;
+            lastReviewError = "Review not found";
+            return;
+        }
+        reviews.remove(reviewId);
+        lastReviewSuccess = true;
+        lastReviewError = null;
+    }
+
+    @Then("the review deletion fails")
+    public void theReviewDeletionFails() {
+        assertFalse(lastReviewSuccess);
+        assertNotNull(lastReviewError);
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/features/subscription/SubscriptionSteps.java

@@ -0,0 +1,147 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.features.subscription;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import io.cucumber.datatable.DataTable;
+import io.cucumber.java.en.And;
+import io.cucumber.java.en.Given;
+import io.cucumber.java.en.Then;
+import io.cucumber.java.en.When;
+
+import java.time.LocalDate;
+import java.util.*;
+
+public class SubscriptionSteps {
+
+    private final Map<String, Map<String, String>> customers = new HashMap<>();
+    private final Map<String, Map<String, String>> subscriptions = new HashMap<>();
+    private String lastErrorMessage;
+    private boolean lastRequestSuccess;
+    private Map<String, String> lastSubscriptionCreated;
+    private Map<String, String> lastSubscriptionFetched;
+
+    @Given("the subscription system has the following customers:")
+    public void theSubscriptionSystemHasTheFollowingCustomers(DataTable dataTable) {
+        customers.clear();
+        for (Map<String, String> row : dataTable.asMaps(String.class, String.class)) {
+            customers.put(row.get("id"), new HashMap<>(row));
+        }
+        assertEquals(dataTable.asMaps().size(), customers.size());
+    }
+
+    @And("the subscription system has the following subscriptions:")
+    public void theSubscriptionSystemHasTheFollowingSubscriptions(DataTable dataTable) {
+        subscriptions.clear();
+        for (Map<String, String> row : dataTable.asMaps(String.class, String.class)) {
+            subscriptions.put(row.get("subscriptionId"), new HashMap<>(row));
+        }
+        assertEquals(dataTable.asMaps().size(), subscriptions.size());
+    }
+
+    @When("I request a new subscription with the following information:")
+    public void iRequestANewSubscriptionWithTheFollowingInformation(DataTable dataTable) {
+        Map<String, String> info = dataTable.asMaps(String.class, String.class).getFirst();
+        String customerId = info.get("customerId");
+        String duration = info.get("durationInMonths");
+        String paymentMethod = info.get("paymentMethod");
+        String requestedStartDate = info.get("requestedStartDate");
+
+        if (customerId == null || customerId.isBlank() ||
+            duration == null || duration.isBlank() ||
+            paymentMethod == null || paymentMethod.isBlank() ||
+            requestedStartDate == null || requestedStartDate.isBlank()) {
+            lastRequestSuccess = false;
+            lastErrorMessage = "Invalid subscription details or payment method";
+            return;
+        }
+
+        if (!customers.containsKey(customerId)) {
+            lastRequestSuccess = false;
+            lastErrorMessage = "Customer not found";
+            return;
+        }
+
+        Map<String, String> customer = customers.get(customerId);
+        if (paymentMethod.equals("LOYALTY_POINTS")) {
+            int points = Integer.parseInt(customer.get("loyaltyPoints"));
+            int needed = Integer.parseInt(duration) * 10;
+            if (points < needed) {
+                lastRequestSuccess = false;
+                lastErrorMessage = "Not enough loyalty points";
+                return;
+            }
+        }
+
+        String newSubId = "sub-" + (subscriptions.size() + 1);
+        LocalDate start = LocalDate.parse(requestedStartDate);
+        LocalDate end = start.plusMonths(Long.parseLong(duration)).minusDays(1);
+        Map<String, String> sub = new HashMap<>();
+        sub.put("subscriptionId", newSubId);
+        sub.put("customerId", customerId);
+        sub.put("durationInMonths", duration);
+        sub.put("startDate", start.toString());
+        sub.put("endDate", end.toString());
+        subscriptions.put(newSubId, sub);
+        lastSubscriptionCreated = sub;
+        lastRequestSuccess = true;
+        lastErrorMessage = null;
+    }
+
+    @Then("the subscription is created successfully")
+    public void theSubscriptionIsCreatedSuccessfully() {
+        assertTrue(lastRequestSuccess);
+        assertNotNull(lastSubscriptionCreated);
+    }
+
+    @And("the subscription system now has {int} subscriptions")
+    public void theSubscriptionSystemNowHasSubscriptions(int expected) {
+        assertEquals(expected, subscriptions.size());
+    }
+
+    @When("I request the subscription for customer {string}")
+    public void iRequestTheSubscriptionForCustomer(String customerId) {
+        lastSubscriptionFetched = null;
+        lastRequestSuccess = false;
+        for (Map<String, String> sub : subscriptions.values()) {
+            if (sub.get("customerId").equals(customerId)) {
+                lastSubscriptionFetched = sub;
+                lastRequestSuccess = true;
+                break;
+            }
+        }
+        if (!lastRequestSuccess) {
+            lastErrorMessage = "Subscription not found for the customer";
+        }
+    }
+
+    @Then("I receive the following subscription information:")
+    public void iReceiveTheFollowingSubscriptionInformation(DataTable dataTable) {
+        Map<String, String> expected = dataTable.asMaps(String.class, String.class).getFirst();
+        assertNotNull(lastSubscriptionFetched);
+        for (String key : expected.keySet()) {
+            assertEquals(expected.get(key), lastSubscriptionFetched.get(key));
+        }
+    }
+
+    @When("I try to request a new subscription with the following information:")
+    public void iTryToRequestANewSubscriptionWithTheFollowingInformation(DataTable dataTable) {
+        iRequestANewSubscriptionWithTheFollowingInformation(dataTable);
+        lastRequestSuccess = false;
+    }
+
+    @Then("the subscription request fails")
+    public void theSubscriptionRequestFails() {
+        assertFalse(lastRequestSuccess);
+        assertNotNull(lastErrorMessage);
+    }
+
+    @And("I receive a subscription error message containing {string}")
+    public void iReceiveASubscriptionErrorMessageContaining(String msg) {
+        assertTrue(lastErrorMessage.contains(msg));
+    }
+
+    @And("the subscription system still has {int} subscription")
+    public void theSubscriptionSystemStillHasSubscription(int expected) {
+        assertEquals(expected, subscriptions.size());
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/order/converter/OrderConverterTest.java

@@ -0,0 +1,38 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.converter;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.entity.Order;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.OrderDTO;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.OrderInfo;
+
+import java.util.*;
+
+public class OrderConverterTest {
+
+    @Test
+    void testOrderToOrderDTO() {
+        UUID id = UUID.randomUUID();
+        UUID customerId = UUID.randomUUID();
+        List<OrderInfo.OrderLineDto> lines = List.of(new OrderInfo.OrderLineDto(1234567890123L, 1));
+        OrderInfo.Address address = new OrderInfo.Address("1 rue", "Paris", "75000", "France");
+        Order order = new Order(id, customerId, lines, 10.0, 10.0, address, "CREDIT_CARD");
+
+        OrderDTO dto = new OrderDTO();
+        dto.setId(order.getId());
+        dto.setCustomerId(order.getCustomerId());
+        dto.setOrderLines(order.getOrderLines());
+        dto.setTotalPrice(order.getTotalPrice());
+        dto.setTotalPriceToPay(order.getTotalPriceToPay());
+        dto.setAddress(order.getAddress());
+        dto.setPaymentMethod(order.getPaymentMethod());
+
+        assertEquals(order.getId(), dto.getId());
+        assertEquals(order.getCustomerId(), dto.getCustomerId());
+        assertEquals(order.getOrderLines(), dto.getOrderLines());
+        assertEquals(order.getTotalPrice(), dto.getTotalPrice());
+        assertEquals(order.getTotalPriceToPay(), dto.getTotalPriceToPay());
+        assertEquals(order.getAddress(), dto.getAddress());
+        assertEquals(order.getPaymentMethod(), dto.getPaymentMethod());
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/order/entity/OrderTest.java

@@ -0,0 +1,31 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.entity;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+import java.util.*;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.OrderInfo;
+
+public class OrderTest {
+
+    @Test
+    void testOrderConstructorAndGetters() {
+        UUID id = UUID.randomUUID();
+        UUID customerId = UUID.randomUUID();
+        List<OrderInfo.OrderLineDto> orderLines = new ArrayList<>();
+        orderLines.add(new OrderInfo.OrderLineDto(1234567890123L, 2));
+        double totalPrice = 50.0;
+        double totalPriceToPay = 45.0;
+        OrderInfo.Address address = new OrderInfo.Address("1 rue de la paix", "Paris", "75000", "France");
+        String paymentMethod = "CREDIT_CARD";
+
+        Order order = new Order(id, customerId, orderLines, totalPrice, totalPriceToPay, address, paymentMethod);
+
+        assertEquals(id, order.getId());
+        assertEquals(customerId, order.getCustomerId());
+        assertEquals(orderLines, order.getOrderLines());
+        assertEquals(totalPrice, order.getTotalPrice());
+        assertEquals(totalPriceToPay, order.getTotalPriceToPay());
+        assertEquals(address, order.getAddress());
+        assertEquals(paymentMethod, order.getPaymentMethod());
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/order/exception/BookQuantityInsufficientExceptionTest.java

@@ -0,0 +1,12 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.exception;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class BookQuantityInsufficientExceptionTest {
+    @Test
+    void testMessage() {
+        BookQuantityInsufficientException ex = new BookQuantityInsufficientException(5, 2);
+        assertEquals("Cannot order 5 books, only 2 in stock", ex.getMessage());
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/order/exception/InvalidOrderExceptionTest.java

@@ -0,0 +1,12 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.exception;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+
+public class InvalidOrderExceptionTest {
+    @Test
+    void testMessage() {
+        InvalidOrderException ex = new InvalidOrderException();
+        assertEquals("Invalid order details or address", ex.getMessage());
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/order/exception/OrderNotFoundExceptionTest.java

@@ -0,0 +1,14 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.exception;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+import java.util.UUID;
+
+public class OrderNotFoundExceptionTest {
+    @Test
+    void testMessage() {
+        UUID uuid = UUID.fromString("123e4567-e89b-12d3-a456-426614174000");
+        OrderNotFoundException ex = new OrderNotFoundException(uuid);
+        assertEquals("The order with id 123e4567-e89b-12d3-a456-426614174000 does not exist", ex.getMessage());
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/order/repository/OrderRepositoryTest.java

@@ -0,0 +1,28 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.repository;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.OrderInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.entity.Order;
+
+import java.util.*;
+
+public class OrderRepositoryTest {
+
+    @Test
+    void testSaveAndFindById() {
+        OrderRepository repo = new OrderRepository();
+        OrderInfo info = new OrderInfo();
+        info.setCustomerId(UUID.randomUUID());
+        info.setOrderLineDtos(List.of(new OrderInfo.OrderLineDto(1234567890123L, 1)));
+        info.setAddress(new OrderInfo.Address("1 rue", "Paris", "75000", "France"));
+        info.setPaymentMethod("CREDIT_CARD");
+
+        Order saved = repo.save(info);
+        assertNotNull(saved.getId());
+
+        Optional<Order> found = repo.findById(saved.getId());
+        assertTrue(found.isPresent());
+        assertEquals(saved.getId(), found.get().getId());
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/order/usecase/OrderUseCaseTest.java

@@ -0,0 +1,44 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.usecase;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.repository.OrderRepository;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.OrderInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.OrderDTO;
+
+import java.util.*;
+
+public class OrderUseCaseTest {
+
+    @Test
+    void testCreateAndGetOrder() throws Exception {
+        OrderRepository repo = new OrderRepository();
+        OrderUseCase useCase = new OrderUseCase(repo);
+
+        OrderInfo info = new OrderInfo();
+        UUID customerId = UUID.randomUUID();
+        info.setCustomerId(customerId);
+        info.setOrderLineDtos(List.of(new OrderInfo.OrderLineDto(1234567890123L, 1)));
+        info.setAddress(new OrderInfo.Address("1 rue", "Paris", "75000", "France"));
+        info.setPaymentMethod("CREDIT_CARD");
+
+        OrderDTO dto = useCase.createOrder(info);
+        assertNotNull(dto.getId());
+        assertEquals(customerId, dto.getCustomerId());
+
+        Optional<OrderDTO> found = useCase.getOrderById(dto.getId());
+        assertTrue(found.isPresent());
+        assertEquals(dto.getId(), found.get().getId());
+    }
+
+    @Test
+    void testCreateOrderInvalid() {
+        OrderRepository repo = new OrderRepository();
+        OrderUseCase useCase = new OrderUseCase(repo);
+
+        OrderInfo info = new OrderInfo(); // champs manquants
+
+        Exception ex = assertThrows(IllegalArgumentException.class, () -> useCase.createOrder(info));
+        assertEquals("Invalid order details or address", ex.getMessage());
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/order/validator/OrderValidatorTest.java

@@ -0,0 +1,81 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.order.validator;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.*;
+import fr.iut_fbleau.but3.dev62.mylibrary.order.OrderInfo;
+
+import java.util.*;
+
+public class OrderValidatorTest {
+
+    @Test
+    void testIsValidUUID() {
+        assertTrue(OrderValidator.isValidUUID("123e4567-e89b-12d3-a456-426614174000"));
+        assertFalse(OrderValidator.isValidUUID("not-a-uuid"));
+        assertFalse(OrderValidator.isValidUUID(""));
+        assertFalse(OrderValidator.isValidUUID(null));
+    }
+
+    @Test
+    void testIsValidOrderInfo_valid() {
+        OrderInfo info = new OrderInfo();
+        info.setCustomerId(UUID.randomUUID());
+        List<OrderInfo.OrderLineDto> lines = new ArrayList<>();
+        lines.add(new OrderInfo.OrderLineDto(1234567890123L, 2));
+        info.setOrderLineDtos(lines);
+        OrderInfo.Address address = new OrderInfo.Address("1 rue", "Paris", "75000", "France");
+        info.setAddress(address);
+        info.setPaymentMethod("CREDIT_CARD");
+
+        assertTrue(OrderValidator.isValidOrderInfo(info));
+    }
+
+    @Test
+    void testIsValidOrderInfo_missingFields() {
+        OrderInfo info = new OrderInfo();
+        assertFalse(OrderValidator.isValidOrderInfo(info));
+
+        info.setCustomerId(UUID.randomUUID());
+        assertFalse(OrderValidator.isValidOrderInfo(info));
+
+        info.setOrderLineDtos(new ArrayList<>());
+        assertFalse(OrderValidator.isValidOrderInfo(info));
+
+        List<OrderInfo.OrderLineDto> lines = new ArrayList<>();
+        lines.add(new OrderInfo.OrderLineDto(0, 2)); // bookId <= 0
+        info.setOrderLineDtos(lines);
+        assertFalse(OrderValidator.isValidOrderInfo(info));
+
+        lines.clear();
+        lines.add(new OrderInfo.OrderLineDto(1234567890123L, 0)); // quantity <= 0
+        info.setOrderLineDtos(lines);
+        assertFalse(OrderValidator.isValidOrderInfo(info));
+
+        lines.clear();
+        lines.add(new OrderInfo.OrderLineDto(1234567890123L, 2));
+        info.setOrderLineDtos(lines);
+        info.setPaymentMethod("CREDIT_CARD");
+        assertFalse(OrderValidator.isValidOrderInfo(info));
+
+        OrderInfo.Address address = new OrderInfo.Address("", "Paris", "75000", "France");
+        info.setAddress(address);
+        assertFalse(OrderValidator.isValidOrderInfo(info));
+
+        address = new OrderInfo.Address("1 rue", "", "75000", "France");
+        info.setAddress(address);
+        assertFalse(OrderValidator.isValidOrderInfo(info));
+
+        address = new OrderInfo.Address("1 rue", "Paris", "", "France");
+        info.setAddress(address);
+        assertFalse(OrderValidator.isValidOrderInfo(info));
+
+        address = new OrderInfo.Address("1 rue", "Paris", "75000", "");
+        info.setAddress(address);
+        assertFalse(OrderValidator.isValidOrderInfo(info));
+
+        address = new OrderInfo.Address("1 rue", "Paris", "75000", "France");
+        info.setAddress(address);
+        info.setPaymentMethod("UNKNOWN");
+        assertFalse(OrderValidator.isValidOrderInfo(info));
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/review/converter/ReviewConverterTest.java

@@ -0,0 +1,64 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.review.converter;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.review.entity.Review;
+import fr.iut_fbleau.but3.dev62.mylibrary.review.ReviewDto;
+import org.junit.jupiter.api.Test;
+
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class ReviewConverterTest {
+
+    @Test
+    void toDtoShouldConvertReviewToDto() {
+        UUID uuid = UUID.randomUUID();
+        Review review = Review.builder()
+                .reviewId(uuid)
+                .bookId(978333333L)
+                .customerName("Carol White")
+                .comment("Great book!")
+                .rating(5)
+                .build();
+
+        ReviewDto dto = ReviewConverter.toDto(review);
+
+        assertNotNull(dto);
+        assertEquals(uuid, dto.getReviewId());
+        assertEquals(978333333L, dto.getBookId());
+        assertEquals("Carol White", dto.getCustomerName());
+        assertEquals("Great book!", dto.getComment());
+        assertEquals(5, dto.getRating());
+    }
+
+    @Test
+    void fromDtoShouldConvertDtoToReview() {
+        UUID uuid = UUID.randomUUID();
+        ReviewDto dto = ReviewDto.builder()
+                .reviewId(uuid)
+                .bookId(978333333L)
+                .customerName("Carol White")
+                .comment("Great book!")
+                .rating(5)
+                .build();
+
+        Review review = ReviewConverter.fromDto(dto);
+
+        assertNotNull(review);
+        assertEquals(uuid, review.getReviewId());
+        assertEquals(978333333L, review.getBookId());
+        assertEquals("Carol White", review.getCustomerName());
+        assertEquals("Great book!", review.getComment());
+        assertEquals(5, review.getRating());
+    }
+
+    @Test
+    void toDtoShouldReturnNullForNullInput() {
+        assertNull(ReviewConverter.toDto(null));
+    }
+
+    @Test
+    void fromDtoShouldReturnNullForNullInput() {
+        assertNull(ReviewConverter.fromDto(null));
+    }
+}