So cool! Big thanks! 😄✨

Java

• Missing fixed tests

• Reference solution should be private

• assertArrayEquals should be used

• JUnit5 with proper annotations should be used

Description should be language-agnostic

Done.

I know its been 5 years, but personally I would find counting the negative cases more funny optimization wise,
I do not see why outside of that though that negative coins are necessary

Author is gone. I add both informations in the description.

does not specify wether the sorting can/should mutate the input array (like the builtins in Python and JS) or return a new instance

JavaScript update

updated Node version to 14, and fixed reference and example solutions which used incorrect logic for comparisons.

( Depending on your language ) It still is.

approved

COBOL translation.

Since this is not testing a real email address, the description could've clarified it better.

The local part, however, also allows a lot of different special characters.

And what are those special characters? Any characters?

Given a valid email address

What is a valid email address? at least in this kata.

fixed

Approved