Now to handle the main project

When writing a programming assignment as I am for the fall, I first write the reference solution, then a set of test cases to make sure a student submission works properly. Quite a while ago I finished the reference solution for the fall's major assignment. The professor returned from vacation today and approved my plan for what aspects to test. I had been working on various other things during his absence, but now I should complete my main task of writing these tests.