How to use

submittedTutorials

function

in

Array

describe('GET /api/tutorials', () => {
    test('should return list of tutorials uploaded by the user', done => {
      request(app)
        .get('/api/tutorials')
        .set('Authorization', userOneToken)
        .expect(200)
        .expect(res => {
          expect(res.body.tutorials.length).toBe(users[0].submittedTutorials.length);
        })
        .end(done);
    });
  });

if (err) return done(err);
User.findById(users[0]._id).then(user => {
  expect(user.submittedTutorials.length).toBe(users[0].submittedTutorials.length + 1);
  done();
});