However, after I got the project to compile, only one of the test cases ran. No errors or other indication why all the other cases were ignored.
I did finally figure out that if you your test case has a throws clause, it will be IGNORED.
So:
testPlaylistNameExtension() throws { ... }
will silently be ignored, which for a test case is a pretty bad scenario. But if you handle the error in the function and change it to:
testPlaylistNameExtension() { ... }
then everything is just fine. So if you have test in Swift 2.0 that are ignored or not executed, check to see if you have a throws in the function declaration.