feat: Adding test cases for public oauth uptake

[AsabuHere]

Fixes

A short description of what this PR does.
Adding test cases for public oauth uptake in C#

Checklist

• I acknowledge that all my contributions will be made under the project's license
• I have made a material change to the repo (functionality, testing, spelling, grammar)
• I have read the Contribution Guidelines and my PR follows them
• I have titled the PR appropriately
• I have updated my branch with the main branch
• I have added tests that prove my fix is effective or that my feature works
• I have added the necessary documentation about the functionality in the appropriate .md file
• I have added inline documentation to the code I modified

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[tiwarishubham635]

LGTM! I suppose these Env variables are to be added here as well to be picked while Cluster tests. Can you check once?

[sonarcloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

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

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