Add testing (unit, conversion & e2e testing)

[surajssd]

The pace of ours is very fast which scares me, in the way that we might break things. So suggesting to come up with testing framework for us.

As of now since we don't have anything, so testing the conversion on the cluster.

[surajssd]

The way I do it is that I add whatever feature I am working on in the file that has all other features like volumes, health, configmap, etc. and see if everything works fine in each other's preference. If it does I kinda trust it works.

[concaf]

I agree! Honestly, I have zero confidence while writing and merging code right now without any tests. Let's do this first thing once the PoC phase is over in about a week.