[COMPLETED] Test added for MySQL template

[GMHarish285]

Solves #28

[GMHarish285]

I did not use mock db because I thought using real db means we also check database connection and data retrieval. And anyways we are going to initialize the database as reInitDb is in index.js.

[Ashrockzzz2003]

@GMHarish285

This still depends on a local MySQL running. If you can make it work with GitHub Actions CI fine.

I was thinking, we can run the tests on a dockerized instance of this template using the compose script that's generated!

[Ashrockzzz2003]

Much more refinements to go. Bounty for WOC now as it's closed.

[Ashrockzzz2003]

/bounty 40 @GMHarish285

[Ashrockzzz2003]

@GMHarish285
Closing the PR now, reopen it when you start working.