Fixed imprecise assertions

[chrismaddalena]

Fixed imprecise assertions in recently adjusted test cases.

[augmentcode]

🤖 Augment PR Summary

Summary: This PR improves test precision in the reporting serializer test suite.

Changes:

• Replaced boolean membership checks like assertTrue("key" in dict) with assertIn for clearer failures
• Replaced assertTrue(x is not None) with assertIsNotNone for intent-revealing assertions
• Updated findings key checks to use assertIn

Technical Notes: These changes are test-only and should not affect runtime behavior; they mainly improve assertion semantics and failure messages.

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[augmentcode]

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[Copilot]

Pull request overview

This PR tightens unit test assertions in the reporting serializer test suite to use more precise unittest helpers, improving failure messages and intent clarity while keeping behavior unchanged.

Changes:

• Replaced assertTrue("<key>" in dict) with assertIn(...) for membership checks.
• Replaced assertTrue(x is not None) with assertIsNotNone(...) for null checks.
• Updated a nested assertion in findings validation to use assertIn(...).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.20%. Comparing base (b1498a5) to head (d3f1473).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #952   +/-   ##
=======================================
  Coverage   92.19%   92.20%           
=======================================
  Files         444      444           
  Lines       33957    33957           
=======================================
+ Hits        31308    31309    +1     
+ Misses       2649     2648    -1     

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