The cheater has been handled, RSpec framework has been used to display the assertion messages properly too, closing !

I looked at this kata, thought it looked hard, and immediately went to the discussion to look for hints. The only one I found was yours to 'think a little bit', so I did, and then quickly banged out a 'clever' one-liner. (Turns out there were a couple of cleverer (or at least more efficient) one-liners in the solutions, but that's what happens if you rush). So thanks for the hint!

It seams to be hard at first, but it is not so if you think a little bit ;)
Its hard to get a oneliner but we are here to lern.

May very well be the case, consider it a hard kyu 7. Vast majority of beta votes were in favour of 7 I'm afraid.

You passed in a invalid symbol.

Agrees with the Buffer.from as it can be used form browser

Yeah It really is

Approved and updated to RUby 3.0

I highly agree with you man. This also tripped me off. I just posted a suggestion regarding this.

Thanks

Can you please accept the issue resolved?

Fixed.

Yes. I've been working may way through various Kata starting at 8 kyu, then 7, then 6 so far... this one has been much more challenging than any I have done so far.

Added sample tests and updated description.

I don't see what's the point of that statement: if you're running JS code it's run either from Node or from a browser, and both have their own exclusive stuff (browser has btoa and the likes).