Fix AVA tests and made them mandatory.

[Ameya05]

Removed obsolete test cases and included unit tests a mandatory step while build and push.

Fixed #2703

[albinekb]

LGTM, looks like the functions tested are long gone :)

[chabou]

Best thing is tests are now mandatory and I'll never brake them again

[chabou]

@Ameya05 Thank you a lot for this PR 🙏

[Xapphire13]

@chabou, these changes have existed in this pr #2459 for 3 months now...

[chabou]

@Xapphire13 Sorry for that. But restoring test what not your PR main goal.
I can't merge your PR without hardcore reviewing/testing it.
But I could merge this one.

Keep in mind that is always better to have little PR that address only one issue.

But I feel really sorry to have your PR unreviewed since 3 months... 😞

[Xapphire13]

@chabou
I understand that. My issue is that you stopped replying to all correspondence on the pull request entirely (from me and other members of the community). As for testing, it's a very small change (with UTs) that should be easy to test in a short period of time.