Add codecov for unit test coverage

[varshaprasad96]

Issue link

What changes have been made

Verification steps

Checks

• I've made sure the tests are passing.
• Testing Strategy
  • Unit tests
  • Manual tests
  • Testing is not required for this change

[varshaprasad96]

@ChristianZaccaria Could we merge this to check if coverage reports are being uploaded? Looks like it should automatically search for coverage files in the repo and add it - so no more path configuration is needed.

[ChristianZaccaria]

Good for merge on my side
/lgtm
/approve

[ChristianZaccaria]

One thought on this actually:

[varshaprasad96]

/hold

The action seems to be failing with rate limiting error mentioning that a new token is required.

[codecov]

Welcome to Codecov 🎉

Once you merge this PR into your default branch, you're all set! Codecov will compare coverage reports and display results in all future pull requests.

Thanks for integrating Codecov - We've got you covered ☂️

[ChristianZaccaria]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ChristianZaccaria, KPostOffice, Ygnas

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [KPostOffice]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment