Fix _normalize_union_str to recursively normalize nested unions

[koxudaxi]

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📥 Commits

Reviewing files that changed from the base of the PR and between 2c7944d and 8aa1c04.

📒 Files selected for processing (1)

• tests/main/test_public_api_signature_baseline.py

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[github-actions]

📚 Docs Preview: https://pr-2876.datamodel-code-generator.pages.dev

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.39%. Comparing base (2c7944d) to head (8aa1c04).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2876   +/-   ##
=======================================
  Coverage   99.38%   99.39%           
=======================================
  Files          91       91           
  Lines       15562    15576   +14     
  Branches     1828     1830    +2     
=======================================
+ Hits        15467    15481   +14     
  Misses         50       50           
  Partials       45       45           

Flag	Coverage Δ
unittests	99.39% <100.00%> (+<0.01%)	⬆️

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[codspeed-hq]

CodSpeed Performance Report

Merging #2876 will not alter performance

_{Comparing fix/normalize-union-str-recursive (8aa1c04) with main (2c7944d)}

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

Summary

✅ 11 untouched
⏩ 98 skipped¹

Footnotes

1. 98 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[github-actions]

Breaking Change Analysis

Result: No breaking changes detected

Reasoning: This PR only modifies a test file (tests/main/test_public_api_signature_baseline.py). The _normalize_union_str function is a test helper used internally for comparing type signatures in tests - it's not part of the public API, CLI, code generation output, or any user-facing functionality. The change improves the test helper to recursively normalize nested union types, which makes the test assertions more robust. No breaking changes for users.

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This analysis was performed by Claude Code Action

[github-actions]

🎉 Released in 0.51.0

This PR is now available in the latest release. See the release notes for details.