Testing service layer with Mockito/Spring with constructor injection

I use constructor injection so my test should look like this now.

import org.junit.Assert;
import org.junit.Before;
import org.junit.jupiter.api.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;

import com.user.model.jpa.User;
import com.user.repository.UserRepository;
import com.user.service.UserService;
import com.job.service.JobService;

@RunWith(MockitoJUnitRunner.class)
public class UserServiceImplTest {


    @Mock
    private UserRepository userRepository;

    @Mock
    private JobService jobService;

    @Mock
    private User testObject;

    private UserService userService;

    @Before
    public void setUp() {
        userService = new UserServiceImpl(userRepository, jobService);
    }
    @Test
    public void testAdd() {

        //given
        testObject = new Mock(User.class);  //commented line
        testObject.setName("name");

        //when
        userService.add(user);

        //then
        Assert.assertEquals("name",task.getName());
    }
}

Is this possible to mock like I did in commented line?

I want to avoid creating new object manually with all fields, because it has too much fields and contaings of two other classes (id, name, surname, Address address, Job job etc.)