Fix/maintainability issues

[fredbi]

Change type

Please select: 🆕 New feature or enhancement|🔧 Bug fix'|📃 Documentation update

Short description

Fixes

Full description

Checklist

• I have signed all my commits with my name and email (see DCO. This does not require a PGP-signed commit
• I have rebased and squashed my work, so only one commit remains
• I have added tests to cover my changes.
• I have properly enriched go doc comments in code.
• I have properly documented any breaking change.

[codecov]

Codecov Report

❌ Patch coverage is 90.41096% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.00%. Comparing base (b33472c) to head (d6bee32).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
require/require_assertions.go	76.92%	4 Missing and 2 partials ⚠️
require/require_format.go	76.92%	4 Missing and 2 partials ⚠️
internal/assertions/yaml.go	87.50%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #51      +/-   ##
==========================================
- Coverage   96.63%   92.00%   -4.64%     
==========================================
  Files          53       78      +25     
  Lines        8227    10301    +2074     
==========================================
+ Hits         7950     9477    +1527     
- Misses        184      651     +467     
- Partials       93      173      +80     

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