bin/verify-exercises-in-docker

[keiravillekode]

This script is useful for testing exercises against a test runner.

[github-actions]

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Automated comment created by PR Commenter 🤖.

[angelikatyborska]

Hi there! I am a bit surprised to see this PR. It doesn't have an associated issue, so it wasn't requested by the maintainers of this track. You didn't provide any explanations for why you're opening this PR. You also don't usually contribute Elixir code to this repository, so I don't think it stems from your own needs in this repository.

Could you please explain? I saw that you opened a similar PR in other tracks (exercism/racket#455).

The elixir test runner already has a script that verifies all exercises work in the test runner and it runs this script on CI.

[keiravillekode]

Sorry for the trouble. We can close this PR.

To see if tracks were already testing against the test runner, I searched for docker. Now I see the track uses mix Very cool.

[keiravillekode]

I was curious about which practice exercises had the slowest example solutions on various tracks. I was using verify-exercises-in-docker as an investigative tool. The PRs were not necessary.

CFML - nth-prime was exceedingly slow, remains slowest after my small PR exercism/cfml#300
Elixir - book-store is slowest
Groovy - perfect-numbers is slowest
LFE - perfect-numbers is slowest
PHP - alphametics is slowest
Racket - alphametics was slowest, leading to my solution rewrite PR exercism/racket#456
Scala - palindrome-products is slowest

I'll include these exercises in factor and risc-v tracks.