> set Test / classLoaderLayeringStrategy := ClassLoaderLayeringStrategy.AllLibraryJars

> test

> set Test / classLoaderLayeringStrategy := ClassLoaderLayeringStrategy.Flat

> test

> set Test / classLoaderLayeringStrategy := ClassLoaderLayeringStrategy.ScalaLibrary

> test

$ copy-file changes/bad.scala src/test/scala/sbt/ScalatestTest.scala

-> test

> set Test / classLoaderLayeringStrategy := ClassLoaderLayeringStrategy.Flat

-> test

> set Test / classLoaderLayeringStrategy := ClassLoaderLayeringStrategy.AllLibraryJars

-> test
