unexpected-http

import { expect } from 'unexpected'; import unexpectedHttp from 'unexpected-http'; import express from 'express'; import supertest from 'supertest'; // Activate the unexpected-http plugin expect.use(unexpectedHttp); const app = express(); app.use(express.json()); // For parsing application/json app.get('/hello', (req, res) => { res.status(200).json({ message: 'Hello, World!' }); }); app.post('/echo', (req, res) => { if (!req.body || Object.keys(req.body).length === 0) { return res.status(400).json({ error: 'Request body is empty' }); } res.status(200).json({ received: req.body }); }); describe('HTTP Server Tests with unexpected-http', () => { let requestAgent: supertest.SuperTest<supertest.Test>; beforeAll(() => { // Use supertest to create a test agent for the Express app requestAgent = supertest(app); }); it('should respond with a greeting on GET /hello', async () => { await expect( requestAgent.get('/hello'), 'to yield response', { status: 200, headers: { 'content-type': 'application/json; charset=utf-8' }, body: { message: 'Hello, World!' } } ); }); it('should echo the JSON body on POST /echo', async () => { const payload = { data: 'test data', value: 123 }; await expect( requestAgent.post('/echo').send(payload), 'to yield response', { status: 200, headers: { 'content-type': 'application/json; charset=utf-8' }, body: { received: payload } } ); }); it('should return 400 for an empty body on POST /echo', async () => { await expect( requestAgent.post('/echo').send({}), 'to yield response', 400 ); }); });