userRoutes.test.js

const request = require('supertest');
const app = require('../server');
const mongoose = require('mongoose');
const User = require('../models/user');

describe('User API Tests', () => {
    let userId;

    beforeAll(async () => {
        await mongoose.connect(process.env.MONGO_URI, {
            useNewUrlParser: true,
            useUnifiedTopology: true
        });
    });

    afterAll(async () => {
        await User.deleteMany({});
        await mongoose.connection.close();
    });

    test('Should create a user', async () => {
        const response = await request(app).post('/api/users').send({
            name: 'Nitesh Kumar Verma',
            email: 'nitesh.verma@niveussolutions.com'
        });
        expect(response.status).toBe(201);
        expect(response.body.name).toBe('Nitesh Kumar Verma');
        userId = response.body._id;
    });

    test('Should update a user', async () => {
        const response = await request(app).put(`/api/users/${userId}`).send({
            name: 'Nitesh Updated',
            email: 'nitesh.verma@niveussolutions.com'
        });
        expect(response.status).toBe(200);
        expect(response.body.name).toBe('Nitesh Updated');
    });

    test('Should fetch all users', async () => {
        const response = await request(app).get('/api/users');
        expect(response.status).toBe(200);
        expect(Array.isArray(response.body)).toBe(true);
    });
});