Pavel Shirshov and Kai gave their talk at Functional Scala on; Hyperpragmatic pure FP testing with distage-testkit - distage is a Dependency Injection mechanism for Scala, it could be called a module system for Scala but with an automatic garbage-collecting solar. Pavel began by explaining why some tests are useful and some are not and then Kai goes into more detail about the specific code.
This talk was given by Pavel Shirshov and Kai at Functional Scala.