Book Image

Node.js Web Development - Fourth Edition

By : David Herron
Book Image

Node.js Web Development - Fourth Edition

By: David Herron

Overview of this book

Node.js is a server-side JavaScript platform using an event-driven, non-blocking I/O model allowing users to build fast and scalable data-intensive applications running in real time. This book gives you an excellent starting point, bringing you straight to the heart of developing web applications with Node.js. You will progress from a rudimentary knowledge of JavaScript and server-side development to being able to create, maintain, deploy and test your own Node.js application.You will understand the importance of transitioning to functions that return Promise objects, and the difference between fs, fs/promises and fs-extra. With this book you'll learn how to use the HTTP Server and Client objects, data storage with both SQL and MongoDB databases, real-time applications with Socket.IO, mobile-first theming with Bootstrap, microservice deployment with Docker, authenticating against third-party services using OAuth, and use some well known tools to beef up security of Express 4.16 applications.
Table of Contents (19 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Testing REST backend services


It's now time to turn our attention to the user authentication service. We've mentioned tests of this service, saying that we'll get to them later. We had developed some scripts for ad hoc testing, which have been useful all along. But later is now, and it's time to get cracking on some real tests.

There's a question of which tool to use for testing the authentication service. Mocha does a good job of organizing a series of test cases, and we should reuse it here. But the thing we have to test is a REST service. The customer of this service, the Notes application, uses it through the REST API, giving us a perfect rationalization to test at the REST interface. Our ad hoc scripts used the SuperAgent library to simplify making REST API calls. There happens to be a companion library, SuperTest, that is meant for REST API testing. Read its documentation here: https://www.npmjs.com/package/supertest.

We've already made the test-compose/userauth directory. In that directory...