Negative integers with leading zeros raise ValueError

[JBLDKY]

Change Summary

This PR addresses the inconsistency in handling negative integers with leading zeros in pydantic-core. It modifies the clean_int_str function to handle negative numbers with leading zeros consistently with positive numbers, allowing inputs like "-00042" to be correctly parsed as -42.

Related issue number

fix #1435

Checklist

• Unit tests for the changes exist
• [] Documentation reflects the changes where applicable (awaiting reply on the related issue)
• [] Pydantic tests pass with this pydantic-core (except for expected changes) (awaiting reply on the related issue)
• [] My PR is ready to review (awaiting reply on the related issue)

Implementation Details

The clean_int_str function in pydantic-core has been modified to:

• Detect if the number is negative at the start of the function.
• Remove the negative sign temporarily.
• Apply the existing logic for removing leading zeros and underscores.
• If the number was originally negative, reapply the negative sign.

This ensures consistent behavior for both positive and negative numbers with leading zeros.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.29%. Comparing base (ab503cb) to head (ff5f5d1).
Report is 169 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1436      +/-   ##
==========================================
- Coverage   90.21%   89.29%   -0.92%     
==========================================
  Files         106      112       +6     
  Lines       16339    17724    +1385     
  Branches       36       41       +5     
==========================================
+ Hits        14740    15827    +1087     
- Misses       1592     1877     +285     
- Partials        7       20      +13     

Files with missing lines	Coverage Δ
src/input/shared.rs	97.95% <100.00%> (+0.78%)	⬆️

... and 47 files with indirect coverage changes

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[codspeed-hq]

CodSpeed Performance Report

Merging #1436 will not alter performance

_{Comparing JBLDKY:leading-zeros-after-unary-minus (ff5f5d1) with main (d93e6b1)}

Summary

✅ 155 untouched benchmarks

[davidhewitt]

Thanks