#unittest { name: "Split() with empty argument Test"; error: NONE; result: true; }; func main () { var s = "123456789" var list = s.split("") var sum = list.reduce(0, func(num1, num2) { return num1.Int()+num2.Int() }) // Check expected just to make sure the loop actually ran return sum == 45 and list.count == 9 }