How do you assert image difference

[HugApps]

I followed the read me , but it does not explain how to actually check the image differences . In my rspec script, I called screenshot 'test.png' , it creates a screen shot just fine, but when I switch CSS and color and re run , it does not detect changes

[donv]

Hi!

Thanks for the report! The screen shot is checked against the previously committed version, so you need to commit the previous version to get a diff. The diff is then stored alongside the original with a ~ at the end, and the test output indicates this by logging the full path of the new and old version of the screen shot.

I hope this helps. 😄

[donv]

I added a section in the README for this:

Screen shots are compared to the previously COMMITTED version of the same screen shot.