Increase test coverage

[eytan-avisror]

unit-test coverage is around 50%, should get it >75% at the very least.

[pratyushprakash]

Can I take this up?

[eytan-avisror]

Hi @pratyushprakash
Thanks for your interest in this, I am afraid we should probably do #14 before doing this as it will probably break some tests.

If you'd like we are happy to take such changes in tests for pod-reaper which is not expecting any refactor soon, however for node-reaper we should probably wait until #14 is done - I was planning on working on it soon.

[pratyushprakash]

@eytan-avisror How about a PR for just the pod-reaper? I can help out in #14 too if you want.

[eytan-avisror]

Thanks @pratyushprakash feel free to send a PR with unit test improvements for pod-reaper.
As for #14 I've already started working on it, I'll send a PR in a few days and we'll see if there is more help needed there.

One issue that may be interesting and we really need is #7 - would be awesome if you can make any contributions there! take a look - we can discuss further on that issue if you find it interesting.