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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Expert Android Studio

Author: Murat Yener and Onur Dundar
Publisher: Wrox
Pages: 456
ISBN: 978-1119089254
Print:1119089255
Kindle:B01L49RI0U
Audience: Intermediate Android programmers
Rating: 1
Reviewer: Mike James

A book on the finer points of Android Studio is a great idea given how little [ ... ]



Learning React, 2nd Ed

Author: Kirupa Chinnathambi
Publisher: Addison Wesley
Date: June 2018
Pages: 304
ISBN: 978-0134843551
Print: 013484355X
Kindle: B07CQPL2BM
Audience: Would-be web developers
Rating: 4.5
Reviewer: Ian Elliot

React - the new kid on the block, but this book is a 2nd edition. Not so young any more.


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