Testing JavaScript Applications (Paperback)

Lucas da Costa

ISBN 10: 1617297917 / ISBN 13: 9781617297915

Published by Manning Publications, New York, 2021

About this Item

Paperback. Automated testing will help you write high-quality software in less time, with more confidence, fewer bugs, and without constant manual oversight. Testing JavaScript Applications is a guide to building a comprehensive and reliable JS application testing suite, covering both how to write tests and how JS testing tools work under the hood. Youll learn from Lucas de Costa, a core contributor to popular JS testing libraries, as he shares a quality mindset for making testing decisions that deliver a real contribution to your business. Youll benefit from informative explanations and diagrams, easily-transferable code samples, and useful tips on using the latest and most consolidated libraries and frameworks of the JavaScript ecosystem. about the technologyNo developer wants to waste time making sure every application feature still works whenever they push new code to production. Thankfully, automated testing delivers quick and precise feedback on whether your application still functions correctly every time you update it. With automated testing, you can validate your application with a single commandand unlike humans, machines dont forget steps or make mistakes! about the book Testing JavaScript Applications is a guide to creating JavaScript tests that are targeted to your applications specific needs. Dripping with the insight author Lucas da Costa has developed as a core contributor to some of the most popular JS testing libraries, this book offers dozens of detailed code samples that you can apply to your own projects. Youll learn how to write tests for both backend and frontend applications, covering the full spectrum of testing types so you can pick an approach thats right for you. Taking on the role of a developer for a bakerys web store, youll learn to validate different aspects including databases, third-party services, and how to spin-up a real browser instance to interact with the entire application. All examples are delivered using the popular testing tool Jest and modern packages of the JavaScript ecosystem. what's inside Writing practical tests that make a real business contributionWriting tests for both front-end and back-end applicationsManaging the costs and complexity of your testsPracticing test-driven developmentDealing with external dependencies, like databases or third-party APIsSupporting tests by creating a "culture of quality" about the readerFor junior JavaScript developers. No testing experience required. about the author Lucas da Costa is a core maintainer of Chai and Sinon.JS, two of the most popular testing tools in the JavaScript ecosystem. He has also contributed to Jest and other relevant open-source projects. Lucas is committed to a culture of sharing and has spoken at major software engineering conferences, including JSConf Colombia, FluentConf, HolyJS, CityJSConf London, and many others. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.

Seller Inventory # 9781617297915

Bibliographic Details

• Title: Testing JavaScript Applications (Paperback)
• Publisher: Manning Publications, New York
• Publication Date: 2021
• Language: English
• ISBN 10: 1617297917
• ISBN 13: 9781617297915
• Binding: Paperback
• Condition: new

About this title

Synopsis

Testing JavaScript Applications teaches you how to implement an automated testing plan for JavaScript-based web applications.

Summary
Automated testing will help you write high-quality software in less time, with more confidence, fewer bugs, and without constant manual oversight. Testing JavaScript Applications is a guide to building a comprehensive and reliable JS application testing suite, covering both how to write tests and how JS testing tools work under the hood. You’ll learn from Lucas de Costa, a core contributor to popular JS testing libraries, as he shares a quality mindset for making testing decisions that deliver a real contribution to your business. You’ll benefit from informative explanations and diagrams, easily-transferable code samples, and useful tips on using the latest and most consolidated libraries and frameworks of the JavaScript ecosystem.

Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications.

About the technology
Automated testing is essential to delivering good JavaScript applications every time. A complete testing strategy needs to cover functions in isolation, integration between different parts of your code, and correctness from the end user’s perspective. This book will teach you how to deliver reliable software quickly and confidently.

About the book
Testing JavaScript Applications teaches you how to implement an automated testing plan for JavaScript-based web applications. It describes practical testing strategies, covers useful tools and libraries, and explains how to foster a culture of quality. In this clearly-written, example-rich book, you’ll explore approaches for both backend and frontend applications and learn how to validate your software much more quickly and reliably.

What's inside

    Unit, end-to-end, and integration testing
    Managing test cost and complexity
    Practicing test-driven development
    Dealing with external dependencies
    Tools like like Jest and Cypress

About the reader
For junior JavaScript developers.

About the author
Lucas da Costa is a core maintainer of Chai and Sinon.JS, two of the most popular testing tools in the JavaScript ecosystem, and contributed to numerous other open-source projects, including Jest.

Table of Contents

PART 1 - TESTING JAVASCRIPT APPLICATIONS

1 An introduction to automated testing

2 What to test and when?

Part 2 - WRITING TESTS

3 Testing techniques

4 Testing backend applications

5 Advanced backend testing techniques

6 Testing frontend applications

7 The React testing ecosystem

8 Testing React applications

9 Test-driven development

10 UI-based end-to-end testing

11 Writing UI-based end-to-end tests

PART 3 - BUSINESS IMPACT

12 Continuous integration and continuous delivery

13 A culture of quality

About the Author

Lucas da Costa is a core maintainer of Chai and Sinon.JS, two of the most popular testing tools in the JavaScript ecosystem. He has also contributed to Jest and other relevant open-source projects. Lucas is committed to a culture of sharing and has spoken at major software engineering conferences, including JSConf Colombia, FluentConf, HolyJS, CityJSConf London, and many others.