After_End/Login_case/src/test/java/UserDaoTest.java

import dao.UserDao;
import domain.User;
import org.junit.Test;

public class UserDaoTest {
    @Test
    public void testLogin() {
        User user = new User(1, "zhangsan", "123");
        UserDao userDao = new UserDao();

        User login = userDao.login(user);
        System.out.println(login);
    }
}