Certainly a programmer should not be sitting idle waiting for tests to finish. If you have a test suite that takes hours, it should be run every night. If that'

Certainly a programmer should not be sitting idle waiting for tests to finish. If you have a test suite that takes hours, it should be run every night. If that's still not frequent enough, you want test runs during the day, and it would slow down your machine too much to do those while you are working, fire up an EC2 instance.