A visual regression testing service

Henric Trotzig

Feb 13, 2019

Happo.io adds support for iOS Safari

When I ask frontend engineers about what browsers they are most likely to find visual bugs in…

Henric Trotzig

Jan 2, 2019

Cross-browser screenshot testing with happo.io and Storybook

Henric Trotzig

Mar 20, 2018

Posting statuses as a github app using node.js

I recently added a github app for happo.io with the sole purpose of posting back statuses to a commit. While much of the documentation for the github API is outstanding, I found myself struggling with generating the auth tokens necessary to call…

Embracing spurious diffs

If you’ve ever tried implementing visual regression testing for your application, you know that spurious diffs can be a real pain. These are minor differences in the UI screenshots causing an example to show up as having a diff despite not having changed.

Henric Trotzig

Oct 9, 2017

Introducing happo.io

Four years ago, Joe Lencioni and I started building a screenshot testing tool that would help us find visual bugs before they went out into production. A while later we introduced our tool, then named Diffux, as an open source project at Camp Sass 2014. Like many screenshot diffing tools out…