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Interactive Development with Clojure.spec

clojure.spec provides seamless integration with clojure.test.check's generators. Write a spec, get a functioning generator, and you can use that generator in a REPL as you're developing, or in a generative test.

To explore this, we'll use clojure.spec to specify a scoring function for Codebreaker, a game based on an old game called Bulls and Cows, a predecessor to the board game, Mastermind. You might recognize this exercise if you've read The RSpec Book, however this will be a bit different.