Test file example with our new jest setup

Dummy.test.ts

import { Request, Response } from 'express';
// eslint-disable-next-line import/no-extraneous-dependencies
import request from 'supertest';
import { Server } from '../../../../../../util/Server';
import { DummyController } from '../Auth.controller';

describe('DummyController', () => {
    const dummyController = new AuthController();

    describe('getTest', () => {
        it('should return a message', () => {
            const req = {} as Request;
            const res = {
                status: jest.fn().mockReturnThis(),
                json: jest.fn().mockReturnThis(),
            } as unknown as Response;

            dummyController.getTest(req, res);

            expect(res.status).toHaveBeenCalledWith(200);
            expect(res.json).toHaveBeenCalledWith({
                message: 'Hello World',
            });
        });

        it('Should send a request using supertest', async () => {
            const result = await request(Server.getServer()).get('/api/v1/dummy/test');
            expect(result.statusCode).toEqual(200);
        });
    });
});