Testing with random inputs and pattern-based testing

It often seems like reinventing the wheel while writing test cases. Always trying to use some handwritten random inputs and trying a few of those inputs on the newly written functions. In this recipe, you will be presented with the Clojure equivalent of QuickCheck patterns, which is a famous testing framework for the Haskell programming language. No need to learn Haskell today, but let's review some cool testing patterns!

Getting ready

In this recipe, one of the main goals is to generate various kinds of data. To achieve that, we will have a mix of handmade data generators and some others will come through libraries. Let's go through the libraries setup.

Libraries

The project.clj file is a bit dense today. We will use the midje library not for testing but for its autotest feature. The autotest feature lets you rerun the tests automatically while writing code, and get test reports.

Compojure is not to present anymore. We will use it a bit to...