test: add unit tests for reducer

[bhavin-a]

Checklist

Please note that in case of below checklist not updated accordingly, the maintainers have the right to immediately close your pull request.

• [x] You created a branch from develop branch.
• [x] You PR is raised on develop branch and not onmain.
• [x] You have read the Contribution Guidlines before creating this PR.

Description of the Change

The PR tends to add unit test for the reducer of redux state whhich covers all possible cases in the data flow of the reducer itself via various actions

Risk Impact

None, just unit test addition

Verification Process

I ran npm run test:watch and checked that all test passed

Release Notes

N/A

[bhavin-a]

Thanks for contributing. Your PR is accepted for the Hacktoberfest. Please fill this form to become eligible for LoginRadius cool swags. :)

Thanks for the review @mohammed786 🙌 ! I have already filled this form. Is it possible for you to confirm the entry? Otherwise, I can fill it back. Thanks!

[bhavin-a]

Though it doesn't ask for the address 😅

[bhavin-a]

Have submitted it back. Thanks!