Add error test cases

[DeividasK]

[github-actions[bot]]

I see that you haven't updated any README files. Would it make sense to do so?

[cl-sonarqube-production[bot]]

Quality Gate passed

Issues
0 New issues
2 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
89.4% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube

[github-actions[bot]]

This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 7 days.

[bolekk]

This got merged as part of https://github.com/smartcontractkit/chainlink/pull/13202