Only install macfsevents in tests on OSX
Only install macfsevents in tests on OSX

Knownly/Cactus,koenbok/Cactus,ibarria0/Cactus,koenbok/Cactus,chaudum/Cactus,eudicots/Cactus,eudicots/Cactus,Knownly/Cactus,koenbok/Cactus,eudicots/Cactus,ibarria0/Cactus,chaudum/Cactus,Knownly/Cactus,chaudum/Cactus,ibarria0/Cactus