Add ObservedObjectCompatibilityTests

[Kyle-Ye]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 15.75%. Comparing base (ea25581) to head (da08797).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #522      +/-   ##
==========================================
- Coverage   15.76%   15.75%   -0.02%     
==========================================
  Files         478      478              
  Lines       26414    26414              
==========================================
- Hits         4164     4161       -3     
- Misses      22250    22253       +3     

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