Have EULAs been tested in court?
For distribution licenses, I would assume they have. Can't put GPL software in your closed source code, can't just download Photoshop and copy it and give it out, etc. And that makes sense and you have some reasonable path to damage/penalties (GPL → your software is now open source, Photoshop → fines or whatever)
But if you download some free piece of software and use it with some other piece of free piece software even though they say "please don't" in the EULA, what could the criminal or civil penalties possibly be?