test(DevWeb): Add tests in DAO_JPA_UserTest

S2/DevWeb/Projet/src/test/java/uppa/project/dao/jpa/DAO_JPA_UserTest.java

@@ -1,44 +1,136 @@
 package uppa.project.dao.jpa;
 
+import jakarta.persistence.EntityManager;
+import java.util.Date;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
+import uppa.project.dao.DAO;
+import uppa.project.dao.DAOException;
+import uppa.project.pojo.User;
+import uppa.project.provider.EntityManagerProvider;
 
 import static org.junit.jupiter.api.Assertions.*;
 
 class DAO_JPA_UserTest {
 
-  @Test
-  void findById() {
-    // TODO Implement this method
-    fail();
+  static EntityManager entityManager;
+  static DAO<User> dao;
+  static User[] users;
+
+  @BeforeAll
+  static void setUp() throws DAOException {
+    EntityManagerProvider.setPersitenceUnitName("test");
+    entityManager = EntityManagerProvider.getInstance();
+    dao = new Game_JPA_DAO_Factory().getDAOUser();
+
+    assertEquals(dao.getClass(), DAO_JPA_User.class);
+  }
+
+  @BeforeEach
+  void clean() {
+    users = new User[] {
+      new User("username", "email", "password", new Date(), User.Gender.MALE),
+      new User("username1", "email1", "password1", new Date(), User.Gender.FEMALE),
+    };
+    entityManager.getTransaction().begin();
+  }
+
+  @AfterEach
+  void rollback() {
+    entityManager.getTransaction().rollback();
   }
 
   @Test
-  void findByField() {
-    // TODO Implement this method
-    fail();
+  void findById() throws DAOException {
+    // Create a new user
+    dao.create(users[0]);
+    User user = dao.findAll()[0];
+
+    // Find the user by id
+    User userInDb = dao.findById(user.getId().intValue());
+    assertEquals(user.getId(), userInDb.getId());
   }
 
   @Test
-  void findAll() {
-    // TODO Implement this method
-    fail();
+  void findByField() throws DAOException {
+    // Create users
+    for (User user : users) dao.create(user);
+
+    // Find the user by username
+    User[] usersInDb = dao.findByField("username", users[0].getUsername());
+    assertEquals(1, usersInDb.length);
+
+    // Check if the user is the same
+    assertEquals(users[0].getUsername(), usersInDb[0].getUsername());
+    assertEquals(users[0].getEmail(), usersInDb[0].getEmail());
+    assertEquals(users[0].getPassword(), usersInDb[0].getPassword());
   }
 
   @Test
-  void create() {
-    // TODO Implement this method
-    fail();
+  void findAll() throws DAOException {
+    // Find all users
+    User[] users = dao.findAll();
+    assertEquals(0, users.length);
+
+    // Create a new user
+    for (User user : users) dao.create(user);
+
+    // Find all users
+    User[] usersInDb = dao.findAll();
+    assertEquals(users.length, usersInDb.length);
   }
 
   @Test
-  void update() {
-    // TODO Implement this method
-    fail();
+  void create() throws DAOException {
+    // Create users
+    for (User user : users) {
+      dao.create(user);
+    }
+
+    // Check if the user is in the database
+    User[] usersInDb = dao.findAll();
+    assertEquals(users.length, usersInDb.length);
+
+    // Check if the user is the same
+    for (int i = 0; i < users.length; i++) {
+      assertEquals(users[i].getUsername(), usersInDb[i].getUsername());
+      assertEquals(users[i].getEmail(), usersInDb[i].getEmail());
+      assertEquals(users[i].getPassword(), usersInDb[i].getPassword());
+      assertEquals(users[i].getBirth(), usersInDb[i].getBirth());
+      assertEquals(users[i].getGender(), usersInDb[i].getGender());
+    }
   }
 
   @Test
-  void delete() {
-    // TODO Implement this method
-    fail();
+  void update() throws DAOException {
+    // Create a new user
+    dao.create(users[0]);
+    User user = dao.findAll()[0];
+
+    // Update the user
+    user.setUsername("new_username");
+    dao.update(user);
+
+    // Check if the user is in the database
+    User[] usersInDb = dao.findAll();
+    assertEquals(1, usersInDb.length);
+
+    // Check if the user is the same
+    assertEquals(user.getUsername(), usersInDb[0].getUsername());
+  }
+
+  @Test
+  void delete() throws DAOException {
+    // Create a new user
+    dao.create(users[0]);
+    User user = dao.findAll()[0];
+
+    // Delete the user
+    dao.delete(user);
+
+    // Check if the user is not in the database
+    assertNull(dao.findById(user.getId().intValue()));
   }
 }