test-cb.js

it('gets a route but is not authed', (done) => {
  chai.request(server)
    .get('/')
    .end((err, res) => {
      assert(res.request.url.endsWith('/login'),
             'should be redirected to /login');
      done();
    });
});

test-promise.js

it('gets a route but is not authed', async () => {
  const res = await request(server).get('/').end();
  assert(res.request.url.endsWith('/login'), 'should be redirected to /login');
});