Designed to work with later versions of Scala / SBT / Scalatest.
From: http://scalakoans.webfactional.com/
Once you run the koans you'll be presented with a failing test to make pass. Once you make the failing test pass you can move on to the next one.
Simply run docker-compose up
Ensure that you have Scala and SBT installed on your machine. From the root project directory run:
sbt "~testOnly org.functionalkoans.forscala.Koans"