(chaos-exporter): Add Unit Test Cases for function exporter()

[Sanjay1611]

UNIT TEST

What happened:

• Write the unit-test

What you expected to happen:

• The test case should be written for function exporter()- https://github.com/litmuschaos/chaos-exporter/blob/master/cmd/exporter/main.go

Anything else we need to know?:

• Issue related to Repository: https://github.com/litmuschaos/chaos-exporter

• Reference:- https://github.com/litmuschaos/chaos-operator/blob/master/pkg/controller/chaosengine/chaosengine_controller_test.go

[erikbfeeley]

Hello!

I will be forking this and writing the unit test for #777

[3sky]

@erikbfeeley still working on this?

[punithnayak]

Hey @chandankumar4 can you assign me this so that I can raise pr
My previous contribution https://gerrit.wikimedia.org/r/q/punit