✅ Reussite du test de reduction des stock avec l'exception possible

interface-contracts.json

@@ -14,6 +14,7 @@
         "langue": "string"
       },
       "output": {
+        "_comment": "c'est ce qui affiche quand tu crée avec la usecase (regarde register de customer)",
         "isbn": "string(13)"
       }
     },

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

@@ -0,0 +1,23 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book;
+
+
+import lombok.Builder;
+import lombok.Getter;
+
+import java.time.LocalDate;
+import java.util.ArrayList;
+
+@Getter
+@Builder
+public class BookDTO {
+    private String isbn;
+    private String title;
+    private String author;
+    private String editor;
+    private LocalDate date;
+    private double price;
+    private Integer stock;
+    private ArrayList<String> categories = new ArrayList<>();
+    private String description ;
+    private String language;
+}

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

@@ -0,0 +1,17 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book;
+
+
+import lombok.Builder;
+import lombok.Getter;
+
+import java.util.ArrayList;
+
+@Builder
+@Getter
+public class BookDetails {
+    private ArrayList<String> categories = new ArrayList<>();
+    private  String description ;
+    private  String language;
+
+
+}

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

@@ -0,0 +1,6 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book;
+
+import java.time.LocalDate;
+
+public record BookInfo(String title, String author, String editor, LocalDate date) {
+}

src/main/java/fr/iut_fbleau/but3/dev62/mylibrary/book/converter/BookConverter.java

@@ -0,0 +1,41 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.converter;
+
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.BookDTO;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.BookDetails;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.BookInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.entity.Book;
+
+public final class BookConverter {
+    private BookConverter(){}
+
+    public static Book ToDomain(BookInfo bookinfo, BookDetails bookdetails){
+        return Book.builder()
+                .isbn("0000000000000")
+                .title(bookinfo.title())
+                .author(bookinfo.author())
+                .editor(bookinfo.editor())
+                .date(bookinfo.date())
+                .price(50.99)
+                .stock(5)
+                .categories(bookdetails.getCategories())
+                .description(bookdetails.getDescription())
+                .language(bookdetails.getLanguage())
+                .build();
+    }
+
+    public static BookDTO ToDTO(Book book){
+        return BookDTO.builder()
+                .isbn(book.getIsbn())
+                .title(book.getTitle())
+                .author(book.getAuthor())
+                .editor(book.getEditor())
+                .date(book.getDate())
+                .price(book.getPrice())
+                .stock(book.getStock())
+                .categories(book.getCategories())
+                .description(book.getDescription())
+                .language(book.getLanguage())
+                .build();
+    }
+}

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

@@ -0,0 +1,35 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.entity;
+
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.exception.IllegalBookStockException;
+import lombok.Builder;
+import lombok.Getter;
+
+import java.time.LocalDate;
+import java.util.ArrayList;
+
+@Getter
+@Builder
+public class Book {
+    private String isbn;
+    private String title;
+    private String author;
+    private String editor;
+    private LocalDate date;
+    private double price;
+    private Integer stock;
+    private ArrayList<String> categories = new ArrayList<>();
+    private String description ;
+    private String language;
+
+    public void addStock(Integer copyToAdd){
+        this.stock += copyToAdd;
+    }
+
+    public void removeStock(Integer copyToRemomve) throws IllegalBookStockException {
+        if (copyToRemomve > this.stock){
+            throw new IllegalBookStockException(copyToRemomve, this.stock);
+        }
+        this.stock -= copyToRemomve;
+    }
+}

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

@@ -0,0 +1,13 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.exception;
+
+import java.text.MessageFormat;
+
+public class IllegalBookStockException extends Exception {
+    public static final String CANNOT_REMOVE_COPY = "Cannot remove {0} copy from {1} copy";
+
+    public IllegalBookStockException(Integer toremove, Integer actual ) {
+
+        super(MessageFormat.format(CANNOT_REMOVE_COPY, toremove,
+                actual));
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/converter/BookConverterTest.java

@@ -0,0 +1,106 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.converter;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.BookDTO;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.BookInfo;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.BookDetails;
+import fr.iut_fbleau.but3.dev62.mylibrary.book.entity.Book;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import java.util.ArrayList;
+import java.time.LocalDate;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+@DisplayName("BookConverterTest Unit Tests")
+public class BookConverterTest {
+
+    @Nested
+    @DisplayName("toDomain() method tests")
+    class ToDomainTests {
+
+        @Test
+        void ShouldConvertBookToDomain(){
+            LocalDate date = LocalDate.of(2026, 3, 24);
+            BookInfo bookinfo = new BookInfo("La vie de Maxime", "Marvin Aubert", "Kioon", date);
+            ArrayList<String> categories = new ArrayList<>();
+            categories.add("Thriller");
+            categories.add("Biographie");
+            BookDetails bookdetails = BookDetails.builder()
+                    .categories(categories)
+                    .description("C'était un brave partit trop tôt")
+                    .language("Français")
+                    .build();
+
+            Book result = BookConverter.ToDomain(bookinfo, bookdetails);
+
+            assertEquals(bookinfo.title(), result.getTitle());
+            assertEquals(bookinfo.author(), result.getAuthor());
+            assertEquals(bookinfo.editor(), result.getEditor());
+            assertEquals(bookinfo.date(), result.getDate());
+            assertEquals(categories, result.getCategories());
+            assertEquals(bookdetails.getDescription(), result.getDescription());
+            assertEquals(bookdetails.getLanguage(), result.getLanguage());
+        }
+    }
+
+    @Nested
+    @DisplayName("toDTO() method tests")
+    class ToDTOTests {
+
+        @Test
+        void ShouldConvertBookToDTO() {
+            LocalDate date = LocalDate.of(2026, 3, 24);
+            ArrayList<String> categories = new ArrayList<>();
+            categories.add("Thriller");
+            categories.add("Biographie");
+            Book book = Book.builder()
+                    .isbn("1234567891012")
+                    .title("La vie de Maxime")
+                    .author("Marvin Aubert")
+                    .editor("Kioon")
+                    .date(date)
+                    .price(12.99)
+                    .stock(50)
+                    .categories(categories)
+                    .description("C'était un brave partit trop tôt")
+                    .language("Français")
+                    .build();
+
+            BookDTO result = BookConverter.ToDTO(book);
+
+            assertEquals(book.getIsbn(), result.getIsbn());
+            assertEquals(book.getTitle(), result.getTitle());
+            assertEquals(book.getAuthor(), result.getAuthor());
+            assertEquals(book.getEditor(), result.getEditor());
+            assertEquals(book.getDate(), result.getDate());
+            assertEquals(book.getPrice(), result.getPrice());
+            assertEquals(book.getStock(), result.getStock());
+            assertEquals(book.getCategories(), result.getCategories());
+            assertEquals(book.getDescription(), result.getDescription());
+            assertEquals(book.getLanguage(), result.getLanguage());
+        }
+    }
+
+    @Test
+    @DisplayName("Should preserve empty string values during conversion")
+    void shouldPreserveEmptyStrings() {
+        LocalDate date = LocalDate.of(2026, 3, 24);
+        BookInfo bookinfo = new BookInfo("La vie de Maxime", "Marvin Aubert", "Kioon", date);
+        ArrayList<String> categories = new ArrayList<>();
+        categories.add("Thriller");
+        categories.add("Biographie");
+        BookDetails bookdetails = BookDetails.builder()
+                .categories(categories)
+                .description("")
+                .language("Français")
+                .build();
+
+        Book book = BookConverter.ToDomain(bookinfo, bookdetails);
+        BookDTO result = BookConverter.ToDTO(book);
+
+        assertEquals("", result.getDescription());
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/entity/BookTest.java

@@ -0,0 +1,168 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.entity;
+
+
+import fr.iut_fbleau.but3.dev62.mylibrary.book.exception.IllegalBookStockException;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDate;
+import java.util.ArrayList;
+
+import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class BookTest {
+
+    @Test
+    @DisplayName("Builder should create a valid Customer instance")
+    void testCustomerBuilder() {
+        String isbn = "1234567891012";
+        String title = "La vie de Maxime";
+        String author = "Marvin Aubert";
+        String editor = "Kioon";
+        LocalDate date = LocalDate.of(2026, 3, 24);
+        double price = 12.99;
+        Integer stock = 50;
+        ArrayList<String> categories = new ArrayList<>();
+        categories.add("Thriller");
+        categories.add("Biographie");
+        String description = "C'était un brave partit trop tôt";
+        String language = "Français";
+        Book book = Book.builder()
+                .isbn(isbn)
+                .title(title)
+                .author(author)
+                .editor(editor)
+                .date(date)
+                .price(price)
+                .stock(stock)
+                .categories(categories)
+                .description(description)
+                .language(language)
+                .build();
+
+        assertEquals(isbn, book.getIsbn());
+        assertEquals(title, book.getTitle());
+        assertEquals(author, book.getAuthor());
+        assertEquals(editor, book.getEditor());
+        assertEquals(date, book.getDate());
+        assertEquals(price, book.getPrice());
+        assertEquals(stock, book.getStock());
+        assertEquals(categories, book.getCategories());
+        assertEquals(description, book.getDescription());
+        assertEquals(language, book.getLanguage());
+    }
+
+    @Nested
+    @DisplayName("Stock Tests")
+    class StockTests {
+
+        @Test
+        @DisplayName("addCopy should correctly increment stocks")
+        void testAddCopy() {
+            Book book =Book.builder()
+                    .stock(5)
+                    .build();
+            Integer copyToAdd = 5;
+            Integer copyExpected = 10;
+
+            book.addStock(copyToAdd);
+
+            assertEquals(copyExpected, book.getStock());
+        }
+
+        @Test
+        @DisplayName("addCopy should correctly increment zero points correctly")
+        void testAddZeroToCopy() {
+            Book book =Book.builder()
+                    .stock(5)
+                    .build();
+            Integer copyToAdd = 0;
+            Integer copyExpected = 5;
+
+            book.addStock(copyToAdd);
+
+            assertEquals(copyExpected, book.getStock());
+        }
+
+        @Test
+        @DisplayName("removeLoyaltyPoints should correctly decrement loyalty points")
+        void testRemoveCopy() throws IllegalBookStockException {
+            Book book =Book.builder()
+                    .stock(5)
+                    .build();
+            Integer copyToRemove = 2;
+            Integer copyExpected = 3;
+
+            book.removeStock(copyToRemove);
+
+            assertEquals(copyExpected, book.getStock());
+        }
+
+        @Test
+        @DisplayName("removeLoyaltyPoints should correctly decrement loyalty points")
+        void testRemoveZeroToCopy() throws IllegalBookStockException {
+            Book book =Book.builder()
+                    .stock(5)
+                    .build();
+            Integer copyToRemove = 0;
+            Integer copyExpected = 5;
+
+            book.removeStock(copyToRemove);
+
+            assertEquals(copyExpected, book.getStock());
+        }
+
+        @Test
+        @DisplayName("removeLoyaltyPoints should correctly decrement loyalty points")
+        void testRemoveAllToCopy() throws IllegalBookStockException {
+            Book book =Book.builder()
+                    .stock(5)
+                    .build();
+            Integer copyToRemove = 5;
+            Integer copyExpected = 0;
+
+            book.removeStock(copyToRemove);
+
+            assertEquals(copyExpected, book.getStock());
+        }
+
+        @Test
+        @DisplayName("removeSTock should throw exception when trying to remove more copy than available")
+        void testRemoveTooManyCopy() {
+            Book book = Book.builder()
+                    .stock(50)
+                    .build();
+            int copyToRemove = 75;
+
+            IllegalBookStockException exception = assertThrows(
+                    IllegalBookStockException.class,
+                    () -> book.removeStock(copyToRemove)
+            );
+
+            assertEquals(50, book.getStock());
+
+            assertTrue(exception.getMessage().contains(String.valueOf(copyToRemove)));
+            assertTrue(exception.getMessage().contains(String.valueOf(book.getStock())));
+        }
+    }
+
+    @Nested
+    @DisplayName("Price Tests")
+    class PriceTests {
+        @Test
+        @DisplayName("addCopy should correctly increment stocks")
+        void testAddCopy() {
+            Book book =Book.builder()
+                    .stock(5)
+                    .build();
+            Integer copyToAdd = 5;
+            Integer copyExpected = 10;
+
+            book.addStock(copyToAdd);
+
+            assertEquals(copyExpected, book.getStock());
+        }
+    }
+}

src/test/java/fr/iut_fbleau/but3/dev62/mylibrary/book/exception/IllegalBookStockExceptionTest.java

@@ -0,0 +1,71 @@
+package fr.iut_fbleau.but3.dev62.mylibrary.book.exception;
+
+import fr.iut_fbleau.but3.dev62.mylibrary.customer.exception.IllegalCustomerPointException;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
+
+import java.text.MessageFormat;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class IllegalBookStockExceptionTest {
+
+    @Test
+    @DisplayName("Exception message should contain the needed and actual stock")
+    void testExceptionMessageContainsStock() {
+        int neededStock = 100;
+        int actualStock = 50;
+
+        IllegalBookStockException exception = new IllegalBookStockException(neededStock, actualStock);
+
+        String expectedMessage = "Cannot remove 100 copy from 50 copy";
+        assertEquals(expectedMessage, exception.getMessage());
+    }
+
+    @ParameterizedTest
+    @CsvSource({
+            "100, 50",
+            "75, 25",
+            "200, 150",
+            "1000, 750"
+    })
+    @DisplayName("Exception message should be formatted correctly for different stock values")
+    void testExceptionMessageForDifferentStockValues(int neededStock, int actualStock) {
+        IllegalBookStockException exception = new IllegalBookStockException(neededStock, actualStock);
+
+        String expectedMessage = MessageFormat.format(IllegalBookStockException.CANNOT_REMOVE_COPY, neededStock, actualStock);
+        assertEquals(expectedMessage, exception.getMessage());
+    }
+
+    @Test
+    @DisplayName("Exception should use the correct constant message format")
+    void testExceptionUsesConstantMessageFormat() {
+        int neededStock = 100;
+        int actualStock = 50;
+
+        IllegalBookStockException exception = new IllegalBookStockException(neededStock, actualStock);
+
+        String expectedFormatWithPlaceholder = "Cannot remove {0} copy from {1} copy";
+        assertEquals(IllegalBookStockException.CANNOT_REMOVE_COPY,
+                expectedFormatWithPlaceholder);
+        assertTrue(exception.getMessage().contains(String.valueOf(neededStock)));
+        assertTrue(exception.getMessage().contains(String.valueOf(actualStock)));
+    }
+
+    @Test
+    @DisplayName("Exception should be properly thrown and caught")
+    void testExceptionCanBeThrownAndCaught() {
+        int neededStock = 100;
+        int actualStock = 50;
+
+        try {
+            throw new IllegalBookStockException(neededStock, actualStock);
+        } catch (IllegalBookStockException e) {
+            String expectedMessage = String.format("Cannot remove %d copy from %d copy", neededStock, actualStock);
+            assertEquals(expectedMessage, e.getMessage());
+        }
+    }
+}