Test description specifies that you are "Given a non-empty array of integers"
However there can be a random test for [] which expects 1 as a result.

Tests are not working:

kata: Unexpected token:8
})();});
      ^

All in all a very nice kata ;)

This is my first kata, please leave me some feedback for what I can improve! :)

Can somebody tell me please what the 4th test case is?
My code takes >6000ms at this one when I try to submit.