Visual difference testing

[AuroraLS3]

I would like to be able to..

Test against visual changes so that library updates changing CSS will not break things

Is your feature request related to a problem? Please describe.

Recent bootstrap update broke table coloring and text color in night mode.

[Jameskmonger]

I'd recommend this! It adds a great deal of robustness.

In the past I've used "Wraith" (by BBC News) to automatically generate and test screenshots of sites between versions.

I'm not sure if it's still maintained but there are alternatives.

[AuroraLS3]

One option is to add screenshots to the existing selenium tests and then do the comparison a bit later in the pipeline.

Currently my main issue is where do I store the main branch image comparison bundle. I'd like to avoid 3rd party services as much as possible since they always go down or do some bullshit after a few years.