如何在JpaRepository中将瞬态对象转换为持久状态？

由于由于新关键字而无法获取休眠会话，因此它失败了jparepository save。我正在尝试在Spring Boot安全性的服务层的junit测试中执行它。在调试之后，它的Method 失败了。

@Test
        public void signupUserTest() {          
            UserLogin userLogin = new UserLogin();//its not getting hibernate session
            BCryptPasswordEncoder encoder = new BCryptPasswordEncoder();
            String password = "Pranav@123";
            userLogin.setUsername("Pranav");
            userLogin.setPassword(encoder.encode(password));
            userLogin.setPasswordConfirm(encoder.encode(password));
            userLogin.setUserMail("wadt999patil@gmail.com");
            userLogin.setRole("ROLE_USER");
            logger.info(userLogin.getRole());

            secureLoginService.signupUser(userLogin);//passing object of userLogin

        }



    public void signupUser(UserLogin userLogin) {
            Authority authority =userAuthorityRepository.findByRole(userLogin.getRole());
            userLogin.setAuthorities((new HashSet<Authority>(Arrays.asList(authority))));
            UserLogin user = null;
            try {
                user = userLoginRepository.save(userLogin); 
            }
            catch(RecordNotFoundException e) {
                logger.error("Enter unique name" + e);
            }
            catch(Exception e) {
                e.printStackTrace();
            }
            if(user!=null) {
                if (userLogin.getUserMail() != null) {
                    mailSender(userLogin.getUserMail());
                }
            }
}