WWW…Wednesday! Percy: Visual Regression Testing
by Taylor Slattery | November 13, 2019
To ensure a consistent customer experience, Percy compares snapshots across all major browsers and also includes responsive testing, to make sure UIs work on both mobile and desktop. In addition to checking visual differences, Percy can check components and their functionality. Naturally, most web development work is a group undertaking, and thankfully Percy has an integrated suite of tools geared towards collaboration, allowing for members of the team to leave comments and notify others of any changes. It also stores a record of previous edits which is helpful for troubleshooting further down the line.
Percy is useful for large and small teams alike. Time is precious and trying to manually review changes across every page, supported browser, and use case, is a huge drain on time and resources. Percy is quick and simple to use. After the hard coding work is complete, teams can perform visual consistency tests and have their results in a matter of minutes. Percy is used by companies like Google, Canva, and Shopify, with engineers on all of their teams singing its praises. For large companies like these, with even larger user-bases, maintaining style guides is of the utmost importance. Manually checking updates prior to roll-out can prove to be next to impossible. Percy helps developers to feel more confident whether making major changes to a UI or just shipping small updates.
Its pricing system works on a per-snapshot basis, with a free plan allowing for up to 5000 monthly snapshots and a team of 10 members. You can sign up for Percy or learn more here.
Taylor is the Managing Editor of Notes on Design. Taylor is a graphic designer, illustrator, and Design Lead at Weirdsleep.
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