I'm on my phone so not really looking. The error I pasted above in one of the bullet points seems to imply you're not importing the the assert function.

how could i fix that

Okay, that's better. The sample tests still fail to run without erroring.

Thank you for the feedback and sorry for the Kyu confusion, started playing with it and it seems like i ended up putting 1kyu instead of 5. I've made the modifications you suggested to the Kata.

• missing random tests
• needs more explanation of 'simple dictionary words' => is this a preloaded variable, etc.?
• bordering on being a duplicate (yes this is slightly more advanced, but password validation has been done before several times on codewars)
• the sample tests error when run (spec/solution_spec.lua:1: attempt to call a nil value (global 'assert_match'))
• this is nowhere near being a 1kyu => more realistically a hard 6 or a 5