Hide Sensitive::test behind flag

[Hinton]

Type of change

- [ ] Bug fix
- [ ] New feature development
- [x] Tech debt (refactoring, code cleanup, dependency upgrades, etc)
- [ ] Build/deploy pipeline (DevOps)
- [ ] Other

Objective

Hide Sensitive::test behind a feature flag which is only added as a dev-dependency.

Before you submit

• Please add unit tests where it makes sense to do so

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 58.72%. Comparing base (7e57f19) to head (5558dcd).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #764   +/-   ##
=======================================
  Coverage   58.72%   58.72%           
=======================================
  Files         177      177           
  Lines       11501    11501           
=======================================
  Hits         6754     6754           
  Misses       4747     4747           

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[github-actions]

Checkmarx One – Scan Summary & Details – 587d6cac-b468-4400-ba18-2457bf771f0a

No New Or Fixed Issues Found

[dani-garcia]

Nice! LGTM.

About the memory leak test, I've made some changes to the testing framework in this PR #766, and with those changes the test passes again (CI run here: #768)

I think it is indeed related to the debug builds code generation, as that PR is changing the test to use release builds. I'm not quite sure what part of this PR is triggering the Rust compiler to generate different code than before though.

Edit: I've merged the changes in main and it's working now! 🚀