How can i test a user register. im using express to run my server, but im not sure how to write the test. i got my endpoint /create. the first test is just to not get an error, to see if its working. Im a little unsure how i can test it, because i will need to login on the html page or what. Any suggestions?

test.js

const {expect} = require('chai')
const chai = require('chai')
const chaiHttp = require('chai-http')
const user = require('../src/controllers/user-controller')



chai.use(chaiHttp)

describe('API', () => {
describe('GET /create', () => {
    it('should register', (done)=>{
      chai
      .request(user)
      .get('/create')
      .end((err,res)=>{
        expect(err).to.be.null;
        done();

      })



    })
})

})

user-controller.js

router.post("/create", (req, res) => {
  const user = new userModel(req.body.email, req.body.password);
  db.saveUser(user);
  res.status(200).send(true);
  
});

register.js

document.addEventListener("DOMContentLoaded", (event) => {
  document.getElementById("form").addEventListener("submit", (event) => {
    event.preventDefault();
    // laver to konstanter, som tager valuen for det useren sætter ind i Email og password.
    const email = document.getElementById("email").value;
    const password = document.getElementById("password").value;
      //laver mit user object som er forbundet til inputtet ovenover
    const user = {
      email: email,
      password: password,
    };
    // Fetcher dataen
    fetch("http://localhost:8200/users/create", {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
      },
      // laver User ombjektet omtil en JSON string
      body: JSON.stringify(user),
    })
    //retunerer et promise, og hvis der repsonse 
    //skal det ryge i json og gå til login.html, ellers alert at der er en fejl
      .then((response) => response.json())
      .then((response) => {
        if (response) {
          location.href = "/login.html";
        }
      })
      .catch(() => {
        alert("Der skete en fejl");
      });
  });
});