Goodbye Medium
I've been a blogger for over 15 years. When I was a teenager, I had a blog on blogger all about what Google was working on. I was one of the first bloggers to report on Google's acquisition of YouTube (my blog got an insane number of views that day). I also used to write (on blogger) one called "Google Video Highlights" where I and some random stranger I "met" on the internet would take turns post
Write tests. Not too many. Mostly integration.
A while back, Guillermo Rauch (creator of Socket.io and founder of Zeit.co (the company behind a ton of the awesome stuff coming out lately)) tweeted something profound: Write tests. Not too many. Mostly integration. This is deep, albeit short, so let's dive in: Write tests. Yes, for most projects you should write automated tests. You should if you value your time anyway. Much better to catch a b
Why I Never Use Shallow Rendering
Why I Never Use Shallow RenderingJuly 23rd, 2018 — 12 min read I remember a few years ago when I got started with React I decided I needed to figure out how to test React components. I tried shallow from enzyme and immediately decided that I would never use it to test my React components. I've expressed this feeling on many occasions and get asked on a regular basis why I feel the way I do about s
Making your UI tests resilient to change
Making your UI tests resilient to changeOctober 7th, 2019 — 6 min read You're a developer and you want to avoid shipping a broken login experience, so you're writing some tests to make sure you don't. Let's get a quick look at an example of such a form: const form = ( <form onSubmit={handleSubmit}> <div> <label htmlFor="username">Username</label> <input id="username" className="username-field" />
Introducing the react-testing-library 🐐
Introducing the react-testing-library 🐐April 2nd, 2018 — 10 min read Two weeks ago, I wrote a new library! I've been thinking about it for a while. But two weeks ago I started getting pretty serious about it: I'm seriously starting to think that I should make my own (very small) testing lib and drop enzyme entirely. Most of enzyme's features are not at all useful (and many damaging) to my testbas
Effective Snapshot Testing
Effective Snapshot TestingOctober 30th, 2017 — 10 min read I guess I've been on a bit of a testing kick recently, I promise this newsletter will delve into more stuff later. But I saw this tweet from Justin Searls (a developer who I admire with a great deal of experience in testing) and thought it would be a great subject to write about. In that tweet, Justin shares a screenshot of a bunch of his
Migrating to Jest
GitHub - kentcdodds/react-ava-workshop: :tiger: A workshop repository for testing React ⚛ with AVA --> slides :tiger: A workshop repository for testing React ⚛ with AVA :rocket: --> slides - GitHub - kentcdodds/react-ava-workshop: :tiger: A workshop repository for testing React ⚛ with AVA --> slides I actually had used Jest long before, but had a less than awesome experience: 𝕏 post data not avai
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