diff --git a/src/main/java/com/safetypin/authentication/model/User.java b/src/main/java/com/safetypin/authentication/model/User.java
index c08cb81375d616e3ad88f078cded119882d09e74..d38fe7d3b1dd603edc784ae1bc8aa6797ebe1738 100644
--- a/src/main/java/com/safetypin/authentication/model/User.java
+++ b/src/main/java/com/safetypin/authentication/model/User.java
@@ -10,59 +10,42 @@ import java.time.LocalDate;
 @Table(name = "users")
 public class User {
 
-    @Setter
-    @Getter
     @Id
+    @Setter @Getter
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
 
-    @Setter
-    @Getter
+    @Setter @Getter
     @Column(nullable = false, unique = true)
     private String email;
 
     // May be null for social login users
-    @Setter
-    @Getter
+    @Setter @Getter
     @Column(nullable = false)
     private String password;
 
-    @Setter
-    @Getter
+    @Setter @Getter
     @Column(nullable = false)
     private String name;
 
     @Column(nullable = false)
     private boolean isVerified = false;
 
-    @Setter
-    @Getter
+    @Setter @Getter
     private String role;
 
     // New fields
-    @Setter
-    @Getter
+    @Setter @Getter
     private LocalDate birthdate;
-    @Setter
-    @Getter
+
+    @Setter  @Getter
     private String provider;  // "EMAIL", "GOOGLE", "APPLE"
-    @Setter
-    @Getter
+
+    @Setter @Getter
     private String socialId;  // For social login users
 
     public User() {}
 
-    public User(String email, String password, String name, boolean isVerified, String role,
-                LocalDate birthdate, String provider, String socialId) {
-        this.email = email;
-        this.password = password;
-        this.name = name;
-        this.isVerified = isVerified;
-        this.role = role;
-        this.birthdate = birthdate;
-        this.provider = provider;
-        this.socialId = socialId;
-    }
 
     // Getters and setters
 
diff --git a/src/main/java/com/safetypin/authentication/seeder/DevDataSeeder.java b/src/main/java/com/safetypin/authentication/seeder/DevDataSeeder.java
index 4f23a81d3626be0e393c4058f9ed721e07480c79..7b9a5b245544aa52a2f864fa9995499f0c608465 100644
--- a/src/main/java/com/safetypin/authentication/seeder/DevDataSeeder.java
+++ b/src/main/java/com/safetypin/authentication/seeder/DevDataSeeder.java
@@ -33,50 +33,62 @@ public class DevDataSeeder implements Runnable {
     public void run() {
         // Only seed if there are no users in the repository
         if (userRepository.count() == 0) {
-            userRepository.save(new User("user1@example.com",
-                    passwordEncoder.encode("password1"),
-                    "User One",
-                    true,
-                    "user",
-                    LocalDate.of(1990, 1, 1),
-                    EMAIL_PROVIDER,
-                    "social1"));
 
-            userRepository.save(new User("user2@example.com",
-                    passwordEncoder.encode("password2"),
-                    "User Two",
-                    true,
-                    "user",
-                    LocalDate.of(1991, 2, 2),
-                    EMAIL_PROVIDER,
-                    "social2"));
+            User user1 = new User();
+            user1.setEmail("user1@example.com");
+            user1.setPassword(passwordEncoder.encode("password1"));
+            user1.setName("User One");
+            user1.setVerified(true);
+            user1.setRole("user");
+            user1.setBirthdate(LocalDate.of(1990, 1, 1));
+            user1.setProvider(EMAIL_PROVIDER);
+            user1.setSocialId("social1");
+            userRepository.save(user1);
 
-            userRepository.save(new User("user3@example.com",
-                    passwordEncoder.encode("password3"),
-                    "User Three",
-                    true,
-                    "user",
-                    LocalDate.of(1992, 3, 3),
-                    EMAIL_PROVIDER,
-                    "social3"));
+            User user2 = new User();
+            user2.setEmail("user2@example.com");
+            user2.setPassword(passwordEncoder.encode("password2"));
+            user2.setName("User Two");
+            user2.setVerified(true);
+            user2.setRole("user");
+            user2.setBirthdate(LocalDate.of(1991, 2, 2));
+            user2.setProvider(EMAIL_PROVIDER);
+            user2.setSocialId("social2");
+            userRepository.save(user2);
 
-            userRepository.save(new User("user4@example.com",
-                    passwordEncoder.encode("password4"),
-                    "User Four",
-                    true,
-                    "user",
-                    LocalDate.of(1993, 4, 4),
-                    EMAIL_PROVIDER,
-                    "social4"));
 
-            userRepository.save(new User("user5@example.com",
-                    passwordEncoder.encode("password5"),
-                    "User Five",
-                    true,
-                    "user",
-                    LocalDate.of(1994, 5, 5),
-                    EMAIL_PROVIDER,
-                    "social5"));
+            User user3 = new User();
+            user3.setEmail("user3@example.com");
+            user3.setPassword(passwordEncoder.encode("password3"));
+            user3.setName("User Three");
+            user3.setVerified(true);
+            user3.setRole("user");
+            user3.setBirthdate(LocalDate.of(1992, 3, 3));
+            user3.setProvider(EMAIL_PROVIDER);
+            user3.setSocialId("social3");
+            userRepository.save(user3);
+
+            User user4 = new User();
+            user4.setEmail("user4@example.com");
+            user4.setPassword(passwordEncoder.encode("password4"));
+            user4.setName("User Four");
+            user4.setVerified(true);
+            user4.setRole("user");
+            user4.setBirthdate(LocalDate.of(1993, 4, 4));
+            user4.setProvider(EMAIL_PROVIDER);
+            user4.setSocialId("social4");
+            userRepository.save(user4);
+
+            User user5 = new User();
+            user5.setEmail("user5@example.com");
+            user5.setPassword(passwordEncoder.encode("password5"));
+            user5.setName("User Five");
+            user5.setVerified(true);
+            user5.setRole("user");
+            user5.setBirthdate(LocalDate.of(1994, 5, 5));
+            user5.setProvider(EMAIL_PROVIDER);
+            user5.setSocialId("social5");
+            userRepository.save(user5);
         }
     }
 }
diff --git a/src/main/java/com/safetypin/authentication/service/AuthenticationService.java b/src/main/java/com/safetypin/authentication/service/AuthenticationService.java
index 3a177cc1f26460b0c12cf32cefe6b1bedc27df68..c5616f63de8091ed96851fe4769f832c9a36dc3a 100644
--- a/src/main/java/com/safetypin/authentication/service/AuthenticationService.java
+++ b/src/main/java/com/safetypin/authentication/service/AuthenticationService.java
@@ -37,8 +37,16 @@ public class AuthenticationService {
             throw new UserAlreadyExistsException("User already exists with this email. If you registered using social login, please sign in with Google/Apple.");
         }
         String encodedPassword = passwordEncoder.encode(request.getPassword());
-        User user = new User(request.getEmail(), encodedPassword, request.getName(), false, "USER",
-                request.getBirthdate(), EMAIL_PROVIDER, null);
+
+        User user = new User();
+        user.setEmail(request.getEmail());
+        user.setPassword(encodedPassword);
+        user.setName(request.getName());
+        user.setVerified(false);
+        user.setRole("USER");
+        user.setBirthdate(request.getBirthdate());
+        user.setProvider(EMAIL_PROVIDER);
+        user.setSocialId(null);
         user = userRepository.save(user);
         otpService.generateOTP(request.getEmail());
         logger.info("OTP generated for {} at {}", request.getEmail(), java.time.LocalDateTime.now());
@@ -57,8 +65,16 @@ public class AuthenticationService {
             }
             return existing;
         }
-        User user = new User(request.getEmail(), null, request.getName(), true, "USER",
-                request.getBirthdate(), request.getProvider().toUpperCase(), request.getSocialId());
+        User user = new User();
+        user.setEmail(request.getEmail());
+        user.setPassword(null);
+        user.setName(request.getName());
+        user.setVerified(true);
+        user.setRole("USER");
+        user.setBirthdate(request.getBirthdate());
+        user.setProvider(request.getProvider().toUpperCase());
+        user.setSocialId(request.getSocialId());
+
         user = userRepository.save(user);
         logger.info("User registered via {}: {} at {}", request.getProvider(), request.getEmail(), java.time.LocalDateTime.now());
         return user;
diff --git a/src/test/java/com/safetypin/authentication/controller/AuthenticationControllerTest.java b/src/test/java/com/safetypin/authentication/controller/AuthenticationControllerTest.java
index 2051cf18cdc18f7e16c02f57e10d900a6b082b98..f0de3fd149c32b54920874bcfe521fd9d3d3d116 100644
--- a/src/test/java/com/safetypin/authentication/controller/AuthenticationControllerTest.java
+++ b/src/test/java/com/safetypin/authentication/controller/AuthenticationControllerTest.java
@@ -67,8 +67,14 @@ class AuthenticationControllerTest {
         request.setName("Test User");
         request.setBirthdate(LocalDate.now().minusYears(20));
 
-        User user = new User("email@example.com", "encodedPassword", "Test User", false, "USER",
-                request.getBirthdate(), "EMAIL", null);
+        User user = new User();
+        user.setEmail("email@example.com");
+        user.setPassword("encodedPassword");
+        user.setName("Test User");
+        user.setRole("USER");
+        user.setBirthdate(request.getBirthdate());
+        user.setProvider("EMAIL");
+
         user.setId(1L);
         Mockito.when(authenticationService.registerUser(any(RegistrationRequest.class))).thenReturn(user);
 
@@ -90,8 +96,15 @@ class AuthenticationControllerTest {
         request.setBirthdate(LocalDate.now().minusYears(25));
         request.setSocialId("social123");
 
-        User user = new User("social@example.com", null, "Social User", true, "USER",
-                request.getBirthdate(), "GOOGLE", "social123");
+        User user = new User();
+        user.setEmail("social@example.com");
+        user.setPassword(null);
+        user.setName("Social User");
+        user.setVerified(true);
+        user.setRole("USER");
+        user.setBirthdate(request.getBirthdate());
+        user.setProvider("GOOGLE");
+        user.setSocialId("social123");
         user.setId(2L);
         Mockito.when(authenticationService.socialLogin(any(SocialLoginRequest.class))).thenReturn(user);
 
@@ -105,8 +118,16 @@ class AuthenticationControllerTest {
 
     @Test
     void testLoginEmail() throws Exception {
-        User user = new User("email@example.com", "encodedPassword", "Test User", true, "USER",
-                LocalDate.now().minusYears(20), "EMAIL", null);
+        User user = new User();
+        user.setEmail("email@example.com");
+        user.setPassword("encodedPassword");
+        user.setName("Test User");
+        user.setVerified(true);
+        user.setRole("USER");
+        user.setBirthdate(LocalDate.now().minusYears(20));
+        user.setProvider("EMAIL");
+        user.setSocialId(null);
+
         user.setId(1L);
         Mockito.when(authenticationService.loginUser(eq("email@example.com"), eq("password"))).thenReturn(user);
 
@@ -120,8 +141,15 @@ class AuthenticationControllerTest {
 
     @Test
     void testLoginSocial() throws Exception {
-        User user = new User("social@example.com", null, "Social User", true, "USER",
-                LocalDate.now().minusYears(25), "GOOGLE", "social123");
+        User user = new User();
+        user.setEmail("social@example.com");
+        user.setPassword(null);
+        user.setName("Social User");
+        user.setVerified(true);
+        user.setRole("USER");
+        user.setBirthdate(LocalDate.now().minusYears(25));
+        user.setProvider("GOOGLE");
+        user.setSocialId("social123");
         user.setId(2L);
         Mockito.when(authenticationService.loginSocial(eq("social@example.com"))).thenReturn(user);
 
diff --git a/src/test/java/com/safetypin/authentication/model/UserTest.java b/src/test/java/com/safetypin/authentication/model/UserTest.java
index f66bde459819e07916045fb66c88e1789d55d6d0..0b3c180b9f24c4b15bbe20ff64e5679ac77fd146 100644
--- a/src/test/java/com/safetypin/authentication/model/UserTest.java
+++ b/src/test/java/com/safetypin/authentication/model/UserTest.java
@@ -68,7 +68,16 @@ class UserTest {
         String provider = "EMAIL";
         String socialId = null;
 
-        User user = new User(email, password, name, verified, role, birthdate, provider, socialId);
+        User user = new User();
+        user.setEmail(email);
+        user.setPassword(password);
+        user.setName(name);
+        user.setVerified(verified);
+        user.setRole(role);
+        user.setBirthdate(birthdate);
+        user.setProvider(provider);
+        user.setSocialId(socialId);
+
 
         // id remains null until set (by the persistence layer)
         assertNull(user.getId(), "Id should be null when not set");
diff --git a/src/test/java/com/safetypin/authentication/seeder/DevDataSeederTest.java b/src/test/java/com/safetypin/authentication/seeder/DevDataSeederTest.java
index 8b58e968648378e63df06b481e55846a7e0587e9..04e4931d56f4a30d4e83ca5236abc3ae4c4d550d 100644
--- a/src/test/java/com/safetypin/authentication/seeder/DevDataSeederTest.java
+++ b/src/test/java/com/safetypin/authentication/seeder/DevDataSeederTest.java
@@ -42,14 +42,16 @@ class DevDataSeederTest {
     @Test
     void testSeederDoesNotInsertIfUsersExist() {
         // Save an existing user into the repository
-        userRepository.save(new User("existing@example.com",
-                passwordEncoder.encode("test"),
-                "Existing User",
-                true,
-                "admin",
-                LocalDate.of(1990, 1, 1),
-                "EMAIL",
-                "social_9999"));
+        User user = new User();
+        user.setEmail("existing@example.com");
+        user.setPassword(passwordEncoder.encode("test"));
+        user.setName("Existing User");
+        user.setVerified(true);
+        user.setRole("admin");
+        user.setBirthdate(LocalDate.of(1990, 1, 1));
+        user.setProvider("EMAIL");
+        user.setSocialId("social_9999");
+        userRepository.save(user);
 
         long countBefore = userRepository.count();
         new DevDataSeeder(userRepository, passwordEncoder).run();
diff --git a/src/test/java/com/safetypin/authentication/service/AuthenticationServiceTest.java b/src/test/java/com/safetypin/authentication/service/AuthenticationServiceTest.java
index b1f12b98afad89337d33776e9dad7d56313440de..32b226564857e87a026779f9a07070d2ef22dde4 100644
--- a/src/test/java/com/safetypin/authentication/service/AuthenticationServiceTest.java
+++ b/src/test/java/com/safetypin/authentication/service/AuthenticationServiceTest.java
@@ -77,8 +77,16 @@ class AuthenticationServiceTest {
 
         when(userRepository.findByEmail("test@example.com")).thenReturn(null);
         when(passwordEncoder.encode("password")).thenReturn("encodedPassword");
-        User savedUser = new User("test@example.com", "encodedPassword", "Test User", false, "USER",
-                request.getBirthdate(), "EMAIL", null);
+        User savedUser = new User();
+        savedUser.setEmail("test@example.com");
+        savedUser.setPassword("encodedPassword");
+        savedUser.setName("Test User");
+        savedUser.setVerified(false);
+        savedUser.setRole("USER");
+        savedUser.setBirthdate(request.getBirthdate());
+        savedUser.setProvider("EMAIL");
+        savedUser.setSocialId(null);
+
         savedUser.setId(1L);
         when(userRepository.save(any(User.class))).thenReturn(savedUser);
 
@@ -117,8 +125,16 @@ class AuthenticationServiceTest {
         request.setSocialId("social123");
         request.setSocialToken("token");
 
-        User existingUser = new User("social@example.com", "encodedPassword", "Existing User", false, "USER",
-                LocalDate.now().minusYears(30), "EMAIL", null);
+        User existingUser = new User();
+        existingUser.setEmail("social@example.com");
+        existingUser.setPassword("encodedPassword");
+        existingUser.setName("Existing User");
+        existingUser.setVerified(false);
+        existingUser.setRole("USER");
+        existingUser.setBirthdate(LocalDate.now().minusYears(30));
+        existingUser.setProvider("EMAIL");
+        existingUser.setSocialId(null);
+
         when(userRepository.findByEmail("social@example.com")).thenReturn(existingUser);
 
         Exception exception = assertThrows(UserAlreadyExistsException.class, () ->
@@ -137,8 +153,16 @@ class AuthenticationServiceTest {
         request.setSocialId("social123");
         request.setSocialToken("token");
 
-        User existingUser = new User("social@example.com", null, "Social User", true, "USER",
-                LocalDate.now().minusYears(25), "GOOGLE", "social123");
+        User existingUser = new User();
+        existingUser.setEmail("social@example.com");
+        existingUser.setPassword(null);
+        existingUser.setName("Social User");
+        existingUser.setVerified(true);
+        existingUser.setRole("USER");
+        existingUser.setBirthdate(LocalDate.now().minusYears(25));
+        existingUser.setProvider("GOOGLE");
+        existingUser.setSocialId("social123");
+
         when(userRepository.findByEmail("social@example.com")).thenReturn(existingUser);
 
         User result = authenticationService.socialLogin(request);
@@ -157,8 +181,16 @@ class AuthenticationServiceTest {
         request.setSocialToken("token");
 
         when(userRepository.findByEmail("social@example.com")).thenReturn(null);
-        User savedUser = new User("social@example.com", null, "Social User", true, "USER",
-                request.getBirthdate(), "GOOGLE", "social123");
+        User savedUser = new User();
+        savedUser.setEmail("social@example.com");
+        savedUser.setPassword(null);
+        savedUser.setName("Social User");
+        savedUser.setVerified(true);
+        savedUser.setRole("USER");
+        savedUser.setBirthdate(request.getBirthdate());
+        savedUser.setProvider("GOOGLE");
+        savedUser.setSocialId("social123");
+
         savedUser.setId(2L);
         when(userRepository.save(any(User.class))).thenReturn(savedUser);
 
@@ -180,8 +212,16 @@ class AuthenticationServiceTest {
 
     @Test
     void testLoginUser_InvalidPassword_NullPassword() {
-        User user = new User("test@example.com", null, "Test User", true, "USER",
-                LocalDate.now().minusYears(20), "EMAIL", null);
+        User user = new User();
+        user.setEmail("test@example.com");
+        user.setPassword(null);
+        user.setName("Test User");
+        user.setVerified(true);
+        user.setRole("USER");
+        user.setBirthdate(LocalDate.now().minusYears(20));
+        user.setProvider("EMAIL");
+        user.setSocialId(null);
+
         when(userRepository.findByEmail("test@example.com")).thenReturn(user);
 
         Exception exception = assertThrows(InvalidCredentialsException.class, () ->
@@ -192,8 +232,16 @@ class AuthenticationServiceTest {
 
     @Test
     void testLoginUser_InvalidPassword_WrongMatch() {
-        User user = new User("test@example.com", "encodedPassword", "Test User", true, "USER",
-                LocalDate.now().minusYears(20), "EMAIL", null);
+        User user = new User();
+        user.setEmail("test@example.com");
+        user.setPassword("encodedPassword");
+        user.setName("Test User");
+        user.setVerified(true);
+        user.setRole("USER");
+        user.setBirthdate(LocalDate.now().minusYears(20));
+        user.setProvider("EMAIL");
+        user.setSocialId(null);
+
         when(userRepository.findByEmail("test@example.com")).thenReturn(user);
         when(passwordEncoder.matches("wrongPassword", "encodedPassword")).thenReturn(false);
 
@@ -205,8 +253,16 @@ class AuthenticationServiceTest {
 
     @Test
     void testLoginUser_Success() {
-        User user = new User("test@example.com", "encodedPassword", "Test User", true, "USER",
-                LocalDate.now().minusYears(20), "EMAIL", null);
+        User user = new User();
+        user.setEmail("test@example.com");
+        user.setPassword("encodedPassword");
+        user.setName("Test User");
+        user.setVerified(true);
+        user.setRole("USER");
+        user.setBirthdate(LocalDate.now().minusYears(20));
+        user.setProvider("EMAIL");
+        user.setSocialId(null);
+
         when(userRepository.findByEmail("test@example.com")).thenReturn(user);
         when(passwordEncoder.matches("password", "encodedPassword")).thenReturn(true);
 
@@ -228,8 +284,16 @@ class AuthenticationServiceTest {
 
     @Test
     void testLoginSocial_Success() {
-        User user = new User("social@example.com", null, "Social User", true, "USER",
-                LocalDate.now().minusYears(25), "GOOGLE", "social123");
+        User user = new User();
+        user.setEmail("social@example.com");
+        user.setPassword(null);
+        user.setName("Social User");
+        user.setVerified(true);
+        user.setRole("USER");
+        user.setBirthdate(LocalDate.now().minusYears(25));
+        user.setProvider("GOOGLE");
+        user.setSocialId("social123");
+
         when(userRepository.findByEmail("social@example.com")).thenReturn(user);
 
         User result = authenticationService.loginSocial("social@example.com");
@@ -243,8 +307,16 @@ class AuthenticationServiceTest {
     void testVerifyOTP_Success() {
         // OTPService returns true and user is found
         when(otpService.verifyOTP("test@example.com", "123456")).thenReturn(true);
-        User user = new User("test@example.com", "encodedPassword", "Test User", false, "USER",
-                LocalDate.now().minusYears(20), "EMAIL", null);
+        User user = new User();
+        user.setEmail("test@example.com");
+        user.setPassword("encodedPassword");
+        user.setName("Test User");
+        user.setVerified(false);
+        user.setRole("USER");
+        user.setBirthdate(LocalDate.now().minusYears(20));
+        user.setProvider("EMAIL");
+        user.setSocialId(null);
+
         when(userRepository.findByEmail("test@example.com")).thenReturn(user);
         when(userRepository.save(any(User.class))).thenReturn(user);
 
@@ -277,8 +349,16 @@ class AuthenticationServiceTest {
 
     @Test
     void testForgotPassword_Success() {
-        User user = new User("test@example.com", "encodedPassword", "Test User", true, "USER",
-                LocalDate.now().minusYears(20), "EMAIL", null);
+        User user = new User();
+        user.setEmail("test@example.com");
+        user.setPassword("encodedPassword");
+        user.setName("Test User");
+        user.setVerified(true);
+        user.setRole("USER");
+        user.setBirthdate(LocalDate.now().minusYears(20));
+        user.setProvider("EMAIL");
+        user.setSocialId(null);
+
         when(userRepository.findByEmail("test@example.com")).thenReturn(user);
 
         assertDoesNotThrow(() -> authenticationService.forgotPassword("test@example.com"));
@@ -294,8 +374,16 @@ class AuthenticationServiceTest {
         assertTrue(exception1.getMessage().contains("Password reset is only available for email-registered users."));
 
         // Case 2: user exists but provider is not EMAIL
-        User user = new User("social@example.com", null, "Social User", true, "USER",
-                LocalDate.now().minusYears(25), "GOOGLE", "social123");
+        User user = new User();
+        user.setEmail("social@example.com");
+        user.setPassword(null);
+        user.setName("Social User");
+        user.setVerified(true);
+        user.setRole("USER");
+        user.setBirthdate(LocalDate.now().minusYears(25));
+        user.setProvider("GOOGLE");
+        user.setSocialId("social123");
+
         when(userRepository.findByEmail("social@example.com")).thenReturn(user);
         Exception exception2 = assertThrows(IllegalArgumentException.class, () ->
                 authenticationService.forgotPassword("social@example.com")
@@ -314,8 +402,16 @@ class AuthenticationServiceTest {
 
     @Test
     void testPostContent_UserNotVerified() {
-        User user = new User("test@example.com", "encodedPassword", "Test User", false, "USER",
-                LocalDate.now().minusYears(20), "EMAIL", null);
+        User user = new User();
+        user.setEmail("test@example.com");
+        user.setPassword("encodedPassword");
+        user.setName("Test User");
+        user.setVerified(false);
+        user.setRole("USER");
+        user.setBirthdate(LocalDate.now().minusYears(20));
+        user.setProvider("EMAIL");
+        user.setSocialId(null);
+
         when(userRepository.findByEmail("test@example.com")).thenReturn(user);
         String response = authenticationService.postContent("test@example.com", "Content");
         assertTrue(response.contains("not verified"));
@@ -323,8 +419,16 @@ class AuthenticationServiceTest {
 
     @Test
     void testPostContent_UserVerified() {
-        User user = new User("test@example.com", "encodedPassword", "Test User", true, "USER",
-                LocalDate.now().minusYears(20), "EMAIL", null);
+        User user = new User();
+        user.setEmail("test@example.com");
+        user.setPassword("encodedPassword");
+        user.setName("Test User");
+        user.setVerified(true);
+        user.setRole("USER");
+        user.setBirthdate(LocalDate.now().minusYears(20));
+        user.setProvider("EMAIL");
+        user.setSocialId(null);
+
         when(userRepository.findByEmail("test@example.com")).thenReturn(user);
         String response = authenticationService.postContent("test@example.com", "Content");
         assertEquals("Content posted successfully", response);