But you can't pay a fraction of a cent per hour to run your unit or integration tests for every commit unless you set up the infrastructure to do so yourself.

But you can't pay a fraction of a cent per hour to run your unit or integration tests for every commit unless you set up the infrastructure to do so yourself. Though now that travis-ci has beta support for osx, this is changing. But probably at a much greater cost and complexity than it could have without the VM restriction on the license.