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Visual Regression Testing with PhantomCSS

The following is a guest post by Jon Bellah, a Lead Front End Engineer at 10up. Jon reached out to us about writing on the idea of visual regression testing, which is a form of CSS testing (i.e. making sure you don't screw up your site by accident). I thought the use-case was particularly interesting: re-architecting CSS (converting to Sass, splitting up files, etc) and making sure there wasn't regressions during that process. Here Jon will go into Read article