Welcome to the Future
A simple example showing Futures and Testing of Futures and exceptions Taken from The Neophyte's Guide to Scala Part 8: Welcome to the Future http://danielwestheide.com/blog/2013/01/09/the-neophytes-guide-to-scala-part-8-welcome-to-the-future.html
Still haven't got my head around Futures and concurrency but building this helped.