Proposal: Image snapshots with webdriverio for cross-browser visual regression testing

[alexparish]

Image snapshots in Storyshots is a fantastic addition and I'd like to start by thanking the contributors for adding this important tool.

In the past I've found that having cross-browser visual regression tests is crucial because, as great as Puppeteer is, it's always the troublesome older browsers such as IE11 that experience regressions. Additionally, most of the engineers I know carry out their development in Chrome so would already spot any regressions that would be caught by Puppeteer while other browsers get forgotten.

This is why I am proposing adding support for webdriverio to image snapshots.

It should be possible to replace references to Puppeteer in test-body-image-snapshot.js with an interface that implements both Puppeteer and webdriverio. There will be some interesting challenges, such as comparing image snapshots for multiple browsers during a test run, but they shouldn't be insurmountable.

[danielduan]

I think it's a great idea to screenshot across browsers. There's been discussions around splitting the storyshot addon into separate addons - snapshots, screenshots, etc.

If you're interested in helping, feel free to join our slack channel and discuss. @igor-dv thoughts?

[igor-dv]

@alexparish, your arguments sound reasonable, though I can't really advocate about having one or another 3rd party library support, since always will be people that will argue against =) I can just suggest adding both =) So you are welcome to contribute.

I've separated image snapshots out of the core storyshots api to the addon-storyshots-puppeteer package, You can add another one called addon-storyshots-webdriverio. It will be a cool addition to this addon.

[stale]

Hi everyone! Seems like there hasn't been much going on in this issue lately. If there are still questions, comments, or bugs, please feel free to continue the discussion. Unfortunately, we don't have time to get to every issue. We are always open to contributions so please send us a pull request if you would like to help. Inactive issues will be closed after 30 days. Thanks!

[stale]

Hey there, it's me again! I am going close this issue to help our maintainers focus on the current development roadmap instead. If the issue mentioned is still a concern, please open a new ticket and mention this old one. Cheers and thanks for using Storybook!

[okmttdhr]

This might help anyone who wants WebdriverIO addon;
https://github.com/andrcuns/addon-storyshots-wdio