The web-platform-tests project (WPT) houses over a million tests written to ensure our browsers provide a consistent experience of the web. WPT predates most of today’s popular JavaScript testing frameworks, so it implements one of its own: testharness.js. In December of 2017, I offered to extend testharness.js with a new feature. No one expected this […]

Tagged:

CC BY-SA

Today we’re launching Test262 Report to provide JavaScript developers with up-to-date information on the state of new and existing language features across implementations. Test262 Report is based on daily runs of Test262, the ECMA-262 (“ECMAScript” or “JavaScript”) test suite, in nightly builds of JavaScript engines, and visualizes at-a-glance status of feature implementation progress. Taking a […]

Tagged:

Bocoup recently facilitated an update to the WebKit project’s interaction with Test262. In this article, I’ll cover what this means for the WebKit project and the JavaScript ecosystem, as well as what exactly has been done in the WebKit project to help make this process more repeatable. Test262 is a project maintained by Ecma’s TC39. […]

Tagged:

We recently started working with browser implementers to improve the state of fieldset, the 21 year old feature in HTML, that provides form accessibility benefits to assistive technologies like screen readers. It suffers from a number of interoperability bugs that make it difficult for web developers to use. Here is an example form grouped with […]

Tagged:

Software development is a costly process. Requirements need to be gathered, decisions need to be made, and resources need to be scheduled to write the software. All of these steps require an investment of time and money to get a feature to the point where it starts bringing value to a business. After the feature […]

Tagged:

Regular readers of this blog are no strangers to free and open source software. From Firefox to Brave, Node.js to OpenSSL, and jQuery to React (finally), today’s web developer can’t get very far at all without relying on “FOSS.” However, there is a huge difference between consuming FOSS and maintaining FOSS. The latter task is […]

Tagged:

CC BY-SA

Think of the last time you goofed up on the job. Maybe you forgot to clean out the microwave in the break room. Maybe you hit “Reply All” when you really meant “Reply.” Or maybe you nodded off during an all-hands meeting. Probably your mistake was a little less banal than any of that, but […]

Tagged:

CC BY-SA

This is part one in a series on the intersection of module bundlers and testing frameworks. Our focus will be webpack and jest but the techniques explored here can be reused with other tools as well. Modern websites and applications are routinely built by combining hundreds of small JavaScript modules. In order to increase the […]

Tagged:

It’s been more than an year since I started attending TC39 meetings, and this most recent meeting felt much like the first, as I faced a new personal challenge: I went there as the acting chair. TC39 is a group of almost 50 highly skilled professionals, each with very strong positions on the existing form […]

Tagged:

The test showed up on my desk just like any other. There I was, working with Google’s Web Platform Predictability team to find so-called “flaky” tests in the venerable Web Platform Tests project. I’d run a hundred or so at a time, over and over again, looking for any that reported inconsistent results. It was […]

Tagged:

CC BY-SA