chore: add more tests for privacy policy rules and nested transaction query contexts

[wschurman]

Why

Noticed that the test coverage of this was missing. Similar to #227, this was easy enough to add some coverage for (and it's important to have tests for this).

How

Add tests.

Test Plan

Run tests.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.78%. Comparing base (8a448b5) to head (20fb26a).
Report is 1 commits behind head on main.

❗ Current head 20fb26a differs from pull request most recent head 4fe15ef

Please upload reports for the commit 4fe15ef to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #228      +/-   ##
==========================================
+ Coverage   98.10%   98.78%   +0.68%     
==========================================
  Files          68       69       +1     
  Lines        1846     1899      +53     
  Branches      249      266      +17     
==========================================
+ Hits         1811     1876      +65     
+ Misses         33       22      -11     
+ Partials        2        1       -1     

Flag	Coverage Δ
integration	98.78% <100.00%> (+0.68%)	⬆️
unittest	98.78% <100.00%> (+0.68%)	⬆️

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