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Testing JavaScript Applications

Name: Testing JavaScript Applications
Brand: MANNING PUBN
SKU: 33298875
Price: 64.64 EUR
Availability: InStock
Author: da Costa
ISBN: 9781617297915

da Costa

Lucas

Jezik

Engleski

Knjiga Meki uvez

Libristo kod: 33298875

Nakladnici MANNING PUBN, lipanj 2021

Automated testing will help you write high-quality software in less time, with more confidence, fe... Cijeli opis

Libristo kod: 33298875

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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

No 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 command—and unlike humans, machines don’t forget steps or make mistakes!

about the book

Testing JavaScript Applications is a guide to creating JavaScript tests that are targeted to your application’s 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. You’ll learn how to write tests for both backend and frontend applications, covering the full spectrum of testing types so you can pick an approach that’s right for you. Taking on the role of a developer for a bakery’s web store, you’ll 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 contribution
Writing tests for both front-end and back-end applications
Managing the costs and complexity of your tests
Practicing test-driven development
Dealing with external dependencies, like databases or third-party APIs
Supporting tests by creating a "culture of quality"

about the reader

For 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.