Your solution passes now so I assume there are no bugs.

That check is a waste of time for such a petty problem like this.

If you put a print(triplets) line in your code it will show the input in the log (as part of the response) -- this is for Python, I'm sure similar code for other languages will have the same action

I found I had to run my "decoder" code twice to get the result!

Are there bugs in the 'Lorem ipsum with random width' tests with width 13, 15, 16, 17 and some more? I get: 'expected textJustify bus was textJustify' with exactly identical results.

What is the alphabet test input? Someone send it to me privately, because I have a fine code and I don't know what is failing. In advance, feel grateful for this gesture.