The idea for this site came to us while we were working on our talk for TestBash Manchester 2016: The 4-hour Tester Experiment. (Which in turn was inspired by Timothy Ferriss’s “The 4-Hour Chef”.)

If you want to contribute any exercises or solutions, you can either send us a mail at or submit a pull request to the repository of this site.

Helena Jeret-Mäe and Joep Schuurkes