Add further testing to oof

[demfabris]

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[marcospb19]

Looking great, I will just request one change before merging.

[demfabris]

So i'm attempting to create this setup function you asked me. How would we tackle this compile error?
filter_flags needs a reference for flags_info and we cannot return them from within the function.
How would you solve this?

[demfabris]

Added further testing. Getting weird compiler complains tho. I think it has to do with this matches macro

[demfabris]

So i did a little refactor in the assert approach and added test_misplaced_flag.
Let me know if i'm doing good

[marcospb19]

You're doing good! If you have finished let me know it is ready for merging.

For that we usually mark the PR as draft, and then unmark when it's ready, so I'll be marking your PR as draft here.

(feel free to add more comments for any questions)

[demfabris]

I think we're set. Every error variant is now covered.
This last one took me a while 😆

[marcospb19]

It is possible that oof turns into a separated argparsing crate someday.

If you want to keep an eye on ouch, there's a button on the top right corner to receive notifications for some issues and PRs.

I created some other issues because it was a mess, if you need any mentoring again, don't be afraid to ask.

This PR is looking very good, thank you so much for the contribution.