Common Lisp Koans

The problem will be within a define-test expression such as

In this case, the test is incomplete, and the student should fill in the blank (____) with appropriate lisp code to make the assert pass. In order to test code, or evaluate tests interactively, students may copy and paste code into the lisp command line REPL. In this case you will need to run the koan and see it fail (red), make the test pass (green), then take a moment and reflect upon the test to see what it is teaching you and improve the code to better communicate its intent (refactor).”

Source: github.com