At the top of your program, paste in the following:
(require test-engine/racket-tests)
This loads a library called racket-tests from the test-engine suite. You can read more about it online. We will only be using one function from this library: check-expect.
With your partner, write tests that you and your partner feel adequately cover your code. By cover, I mean "you're sure all conditions that should be tested are tested." For example, if your code is only supposed to work with strings, it is inappropriate to have a test that passes a number as an actual parameter.
