[Someone]

“due to the insane effort by the WHATWG standards to truly describe what is actually happening in browsers”

I wonder whether one could reuse testcases from other browsers. Might be easier than having humans translate those WHATWG descriptions, written for humans, into a form that computers running tests can use.

And nitpick: it isn’t easier than ever. It was a lot easier for Tim Berners-Lee and the first few other browser writers, before there was a lot of agreement on how a browser was supposed to behave. Certainly, before JavaScript and css, SVG, XML, etc. The scope was a lot smaller.

[jefftk]

> I wonder whether one could reuse testcases from other browsers.

Even better: there is a shared set of test cases and infrastructure that the web standards and compatibility folks have built: https://wpt.fyi