Visual Testing of Examples - Request for JSON API Endpoint

[lucasavila00]

Visual Snapshot Tests are a great feature to use when working with storybooks.

I feel surface catalogue could work really well with that.

One great way to accomplish that is using the awesome jest-image-snapshot

I created a sample MR of what it would take to have something like that working with Catalogue: surface-ui/surface_bootstrap#9

If the approach of using jest-image-snapshot + puppeteer was taken, surface_catalogue should expose a JSON endpoint with all available examples, and their metadata, I think, and the jest script could handle all else.

---

If catalogue were to recommend some form of CI tests using the snapshots, I believe it should recommend using a docker image with puppetter and chrome (like the ones provided by browserless), to control system fonts and browser version.