I’m used this code to test my API endpoint using Jest. But, I don’t why my code is not running.

const mongoose = require("mongoose");
const request = require("supertest");
const app = require("../index.js");

require("dotenv").config();

beforeEach(async () => {
  await mongoose.connect(process.env.mongoUrl);
});

describe("POST /user/register", () => {
  it("should return successfull and register an user", async () => {
    const res = await request(app).post("/user/register").send({
        name: "name",
        email:"[email protected]",
        password: "passcode"
    });
    expect(res.statusCode).toBe(200);
    expect(res.body.name).toBe("hari");
  });
});

/* Closing database connection after each test. */
afterEach(async () => {
  await mongoose.connection.close();
});

This is the console error when I run the code

I run the script using cross-env NODE_ENV=test jest --testTimeout=5000

I need to run this test for my API endpoint