tests: integration tests for plugin conditions

[Prashansa-K]

We shipped the plugin condition support as a part of 1.57.2 urgent release
Adding tests here retrospectively.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 32.88%. Comparing base (00a8e99) to head (8fe4db6).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1999      +/-   ##
==========================================
- Coverage   32.92%   32.88%   -0.05%     
==========================================
  Files          77       77              
  Lines        6988     6988              
==========================================
- Hits         2301     2298       -3     
- Misses       4504     4506       +2     
- Partials      183      184       +1     

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