Testing JavaScript Applications

by Lucas Fernandes da Costa

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

Genres: Technical, Technology, Software, Programming

511 pages, Kindle Edition

First published May 28, 2020

Reviews

[Valentino Gagliardi · Rating 5 out of 5]

I read this book in search for good resources to include in my course for Manning "Refactoring to React Hooks". Lucas didn't disappoint. This is by far the most complete guide to testing JavaScript applications. From test organization to mocking and test doubles, Luca da Costa provides the reader with a solid foundation for writing well-organized, robust tests.

[Helder Burato Berto · Rating 5 out of 5]

I’m using this book as a guide to write more deterministic and meaningful software tests.

This book shares some techniques that will help you to write better software tests and show use-cases examples.

I recommend this read for every developer who wants to improve in software development and tests as well.