You failed to return the numbers that are neither divisible by 3 nor by 5. Also I'm pretty sure your code will never return "Fizzbuzz", since 15 would already be matched by %3.
It's quite ironic that you had all the time in the world to check your code and the ability to silently walk away when the pressure would've been too high and yet you included 2 obvious bugs in your 'proof' of how easy this is.
Thank you for your time, but I'm afraid you would not be a good match for this position at this moment.
``` case $input when $input % 3 == 0: “Fizz” when $input % 5 == 0: “Buzz” when ($input % 3 == 0 && $input % 5 == 0): “Fizzbuzz” end ```