Add Visual Tests as GitHub Action

[jcubic]

I have an idea for a new feature for jQuery Terminal

After creating a Cypress PoC it would be nice to finally test visuals. The code should check the CSS, maybe height, padding and margins of the output.

To Test:

• [ ] spacing below different background (found recently) ervy demo
• [ ] Few ANSI ART (also spacing)
• [ ] Prism with JavaScript syntax
• [ ] Images
  • [ ] Spacing of multiple Images
  • [ ] Error Image SVG
• [ ] Less rendering
  • [ ] Larger content
  • [ ] Smaller Content
  • [ ] Images
  • [ ] Error Images

[jcubic]

It seems that you can't test box model in Cypress. But you can Add Screenshot Testing with Cypress to Your Project

[jcubic]

I think it would be better to just stick to jest and use Puppeteer with jest-image-snapshot