I gave up, these additional tests are too unclear

rejected, no random tests, user inactive, old test framework

still you dont know what words will somebody put to smashed :) mby smashed is " hello', 'world', 'this', 'is', 'great ' so....... Be careful, there shouldn't be a space at the beginning or the end of the sentence! ;)

JS: Node v14 should be used along with its appropiate assertion tools (Mocha + Chai).
Refer to this and this

plus and minus should return a new instance of the Hex class, not the hex value.

I gave up on this because I couldn't get my head around the plus and minus. I had working solutions but they would not work with this Kata.

plus(plusNum) {return this.value + plusNum;}
minus(minusNum) {return this.value - minusNum;}

C# Translation published, awaiting approval. It features random tests.

No need, they're both identical anyway.

fixed some time ago

This is probably my fave approach to this. Very simple and straightforward!

I am getting the error for toString.
'expected: Hex<0xFF> but was: Hex<0xFF>'

Am I doing something wrong?

To make hex objects comparable you have to provide a method equals

This is Java-specific, and should not be visible in all versions of the description.

No random tests.