Param_TEST: Check return values of Param::Get/Set

[scpeters]

🦟 Bug fix

Adds more expectations to a unit test

Summary

While investigating how to implement a suggestion added in a comment in d353294, I noticed that the UNIT_Param_TEST has many calls to bool Param::Get and bool Param::Set without checking the return value. This adds expectations on the return value of those function calls, which will aid in addressing the aforementioned comment with a behavior change PR on main.

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.42%. Comparing base (ff9b3ad) to head (e960bed).
Report is 5 commits behind head on sdf14.

Additional details and impacted files

@@           Coverage Diff           @@
##            sdf14    #1394   +/-   ##
=======================================
  Coverage   92.42%   92.42%           
=======================================
  Files         134      134           
  Lines       17751    17751           
=======================================
  Hits        16406    16406           
  Misses       1345     1345           

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