Test-Driving JavaScript Applications
Author: Dr. Venkat Subramaniam
Publisher: Pragmatic Bookshelf
Pages: 320
ISBN: 978-1680501742
Print: 1680501747
Kindle: B01MQGX4CA
Audience: JavaScript programmers
Rating: 4
Reviewer: Kay Ewbank

This is a book that looks at how to use automated testing to improve the quality of your code. 

The book is subtitled Rapid, Confident, Maintainable Code, and it looks at how a number of automated testing tools can be used, including Karma, Mocha, Chai, Istanbul,Sinon and Protractor. The opening chapter discusses why automated testing and verification is a good idea. The author then moves on to an example showing the steps for creating tests for server-side and client-side code, creating test lists and looking at how to implement the minimum code for one test at a time. 

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The next chapter looks at how to test asynchronous functions, after  which there's an interesting chapter on tackling dependencies. The advice is to remove them where possible, and to decouple and replace dependencies with test doubles to make testing easier.

By Chapter 5 the author has moved on to looking at Node.js applications and how to work out how much of the code the automated tests can verify. The next chapters look at testing database connections, model functions, routes functions, DOM and JQuery.

 

Ways to tests Angular.JS are next on the agenda. The techniques are interesting - for Angular.JS 1.x, the suggestion is to create another version of the client side for the Express application, while for Angular 2, the author suggest recreating the client side using Angular 2 and JavaScript.

Knowing what to test is the real skill in testing, and there's a chapter suggesting important areas to test, and what should be avoided. The book ends with a chapter on putting everything together.

This is a good introductions to the various testing tools, and some of the suggestions for ways to test made me think about better ways to test my own code. An interesting read.

 

Related Reviews

Test-Driven JavaScript Development

Maintainable JavaScript

 

 

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ChatGPT For Dummies

Author: Pam Baker
Publisher: For Dummies
Pages: 176
ISBN: 9781394204632
Print: 1394204639
Kindle: B0C63LZ6DN
Audience: Everyone
Rating: 4
Reviewer: Ian Stirk

 


This book aims to introduce you to ChatGPT, how does it fare?



Modern JavaScript for the Impatient

Author: Cay S. Horstmann
Publisher: Addison-Wesley
Date: July 2020
Pages: 352
ISBN: 978-0136502142
Print: 0136502148
Kindle: B08F5HFWBH
Audience: Developers interested in JavaScript
Rating: 4
Reviewer: Mike James
So you're impatient - what next?


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