[matdes]

> Whenever I tried to learn TDD, it only seemed relevant for back-end testing (eg REST APIs). But is there anyone left who is strictly a back-end guy? Most programmers now bill themselves as full-stack app developers, and probably spend at least half their time working on the front-end/UI.

yes?

> So what does it mean to write functional tests? I'd argue that writing modular React components is a form of functional testing. Devcards[1] is similar, and looks to me exactly like what would be considered functional testing. These two workflows feel much more natural than testing UIs methods like automated selenium browser interactions to generate screenshots.

no.