:sparkles: Add integration tests for both controllers

[michal-gubricky]

What this PR does / why we need it: Adds integration tests for both CSPO controllers

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged): Fixes #73

Special notes for your reviewer:

Please confirm that if this PR changes any image versions, then that's the sole change this PR makes.

TODOs:

• [ ] squash commits
• [ ] include documentation
• [X] add integration tests

[janiskemper]

I will review ones the review of @chess-knight is addressed! Just ping me again okay?

[michal-gubricky]

I will review ones the review of @chess-knight is addressed! Just ping me again okay?

@janiskemper you can take a look at it now, all comments from @chess-knight were addressed.