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Testing JavaScript Applications you own this product

Lucas da Costa
  • March 2021
  • ISBN 9781617297915
  • 512 pages
  • printed in black & white
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If you thought you knew how to test JavaScript applications, this book will surprise you!

Lucian Enache, Glencore
Look inside
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.

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 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.

FREE domestic shipping on orders of three or more print books

This book is your key to taming the wild frontier of JavaScript testing.

Bryan Miller, Petrolitix

A detailed, insightful book on JavaScript testing for newcomers and experienced programmers.

Satej Sahu, Honeywell

An up-to-date, practical book that covers the ground level details of writing real-world tests and testing suites.

Raul Siles, DinoSec

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