I wrote https://github.com/gabrielrotbart/gatling ages ago. It integrates visual testing into normal Rspec specs. Focusing on specific elements rather than full pages, makes it more stable.
I'm sorry but… are you an idiot? this is the coolest thing ever. Like, my mind is blown right now. I futzed with something that did the whole page but wasn't really impressed by it. but this is 100x better. Like, you changed my life this morning.
Thanks (I thought that line was going to end differently considering how it started).
I didn't put it out there because, although it's functioning perfectly, I'm not happy with the internals and would like to find time to refactor it before sending it out to the world.