JavaScript

Sinon.JS 0.6.0 is out and it features a new FakeXMLHttpRequest object and a high-level interface for testing xhr-dependent code along with improvements to sinon.sandbox and sinon.test.

Full article Sinon.JS 0.6.0 - Fake XMLHttpRequest and improved test framework integration.

I've been holding off releasing Sinon until it's "done". Luckily, @augustl kicked me for not "releasing early, releasing often", so I got my act together.

Full article Sinon.JS 0.5.0 Released.

In addition to low-level tools for stubbing and mocking and high-level tools to integrate with test runners, Sinon provides a few useful utilities. This post explains the first of these, which is fake timers and Dates.

Full article Faking Timers and Dates with Sinon.

Sometimes it's useful to split largish JsTestDriver test suites into smaller chunks for debugging, or for slower runs. Here's a quickie little script I wrote to do just that.

Full article Stepping Through JsTestDriver Tests.

Having covered the basic Sinon interface in one and a half posts I want to show you some of the higher-level tools Sinon brings to the table to reduce the amount of ceremony required to add stubs and mocks to your JavaScript tests. Hopefully, these tools will make it dead simple to properly integrate Sinon with any xUnit style test framework.

Full article Higer-level Stubbing and Mocking Tools in Sinon.

While presenting the core Sinon interface yesterday i unintentionally left out parts of the API. To make up for the mistake, here are the missing pieces.

Full article Test Spies, Stubs and Mocks - Part 1.5.

One of the things coming out of me recently writing a book (apart from, you know, a book) is a JavaScript stubbing and mocking library (still in the making) called Sinon. This is the first of a total of three posts giving a preview on the API. Hopefully some of you want to share your ideas and feedback on it.

Full article JavaScript Test Spies, Stubs and Mocks.

I realized that if you want the assert-extras assertions, you probably want the built-in assertions as well.

Full article Update on the node.js asserts.

Recently I've been dabbling in the fantastic library that is node.js. Whenever I enter a new development environment I immediately poke around to figure out how to unit test things. I'm uncomfortable writing too much code without tests, especially when I'm on unfamiliar grounds. Here's what I landed on in round one.

Full article Unit testing node.js apps.

For those of you who didn't already know: I'm writing a book. It's about JavaScript, it's about unit testing and it's about Test Driven Development. It won't be out until October this year, but drafts are already available through Safari Rough Cut.

Full article Test Driven JavaScript - The Book.

Today I needed remote access to a gem I've been tinkering with for a while, so I pushed it to Gemcutter. It's called jstdutil, and it provides a small Ruby wrapper over JsTestDriver that adds colored output, a short, snappy `jstestdriver` command and autotest.

Full article Jstdutil - A Ruby wrapper over JsTestDriver.

Since this summer, I've been test driving all my JavaScript code using Google's fairly fresh JsTestDriver project. If you're intrigued by TDD with JavaScript, including automatic testing (in a console, or - if you're a masochist - an IDE), test suites of 300+ tests running in 498ms as well as shiny red and green output, you should read on.

Full article Test driven JavaScript done right.

Last night I gave a presentation to the local Ruby user group in Oslo on tools for supporting test driven development in JavaScript.

Full article Slides from my JavaScript TDD presentation.

It's been quiet around here for a while. It's been quiet around Juicer, too. Both of those are going to change. After being given a push, Juicer is now finally up for some updates.

Full article Upcoming updates to Juicer.

After switching my Ruby tests from vanilla Test::Unit to Shoulda (via Jeremy McAnally's Context) a while back I've gotten quite used to sexy unit tests. Coming back to JsUnitTest for JavaScript last night, I realized the syntac wasn't working for me anymore. So today, I fixed it.

Full article Syntactical sugar for your JavaScript unit tests.

For best performance, CSS and JavaScript should be served up using as few requests and bytes as possible. Juicer is a new command line tool that helps by resolving dependencies, merging and minifying files. It can even check your syntax, add cache busters to and cycle asset hosts on URLs in CSS files and more.

Full article Juicer - a CSS and JavaScript packaging tool.

Most modern JavaScript libraries offer some kind of "dollar sign function". As another applied example of test driven development in JavaScript I'll walk you through developing your own dollar sign function.

Full article TDD/JavaScript: $().

With my two introductory posts on JavaScript testing under the belt, it's time to do some actual testing. In todays post I walk you through a pretty simple example in test driven development with JavaScript, coding a trim() function. The end result is presented with Qunit, jsunittest.js and YUI Test.

Full article A test driven example.

It's been a while since part one, but I guess late is better than never. In this second part I'll walk you through some available testing frameworks for JavaScript.

Full article Test driven development with JavaScript, part two.

In a series of three articles I am going to walk you through the what's and why's of unit testing and test driven development focusing on JavaScript. We'll look into the underlying concepts, available frameworks for JavaScript, and of course a practical example to top it all off.

Full article Test driven development with JavaScript.