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fix: calcula o dígito verificador do processo jurídico com 98 (Res. CNJ 65/2008) - #785

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niltonpimentel02 merged 4 commits into
brazilian-utils:mainfrom
joaopalmeidao:784
Sep 24, 2026
Merged

niltonpimentel02 merged 4 commits into
brazilian-utils:mainfrom
joaopalmeidao:784

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@joaopalmeidao

@joaopalmeidao joaopalmeidao commented Sep 23, 2026 •

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Descrição

Corrige o cálculo do dígito verificador (DV) do número de processo jurídico. O _checksum usava 97 - ((N * 100) mod 97), mas a Resolução CNJ nº 65/2008 (ISO 7064 MOD 97-10) define 98 - ((N * 100) mod 97). Com o valor errado, is_valid_legal_process rejeitava números reais e generate_legal_process gerava números com DV inválido.

Mudanças Propostas

  • _checksum passa a usar 98, como define a Resolução CNJ 65/2008.
  • Testes:
    • os valores esperados de _checksum e os números válidos de test_is_valid foram recalculados, porque tinham sido gerados com a fórmula antiga;
    • entram dois números reais e públicos (5046512-94.2016.4.04.7000 e 0069758-61.2015.4.01.3400), além de casos com o DV errado por 1, que agora são rejeitados;
    • o novo test_generate_returns_valid_check_digits confere, para cada órgão de 1 a 9, que o número gerado satisfaz N AAAA J TR OOOO DD mod 97 == 1 e passa no is_valid.
  • Os exemplos das docstrings e dos READMEs (PT e EN) foram atualizados com os DVs corretos.
  • Entrada no CHANGELOG, em Fixed.

Os três testes alterados ou adicionados falham no código anterior e passam com a correção. A suíte completa passa (176 testes), e ruff check e ruff format --check (0.15.12) passam.

Checklist de Revisão

  • Eu li o Contributing.md
  • Os testes foram adicionados ou atualizados para refletir as mudanças (se aplicável).
  • Foi adicionada uma entrada no changelog / Meu PR não necessita de uma nova entrada no changelog.
  • A documentação em português foi atualizada ou criada, se necessário.
  • Se feita a documentação, a atualização do arquivo em inglês.
  • Eu documentei as minhas mudanças no código, adicionando docstrings e comentários. Instruções
  • O código segue as diretrizes de estilo e padrões de codificação do projeto.
  • Todos os testes passam. Instruções
  • O Pull Request foi testado localmente. Instruções
  • Não há conflitos de mesclagem.

Declaração de Uso de IA (OBRIGATÓRIA)

  • Nenhuma ferramenta de IA foi utilizada na preparação deste PR.
  • Se ferramentas de IA foram utilizadas, eu informei quais foram e revisei e verifiquei completamente os resultados gerados.

Usei o Claude Code (Anthropic) para reproduzir o problema e escrever a correção e os testes. Revisei o diff e conferi o DV contra números reais de processo.

Comentários Adicionais (opcional)

Este PR corrige só o DV. Os problemas da tabela legal_process_ids.json (TRF6 ausente, TR 00 dos tribunais superiores) e o default congelado de generate, citados na issue, ficam para PRs separados.

Issue Relacionada

Closes #784

Summary by CodeRabbit

  • Bug Fixes
    • Corrected legal-process check-digit calculations. Validation now accepts real process numbers, and generated numbers use valid check digits.
  • Documentation
    • Updated examples in the Portuguese and English guides to show valid process numbers and generated-number formats.

@joaopalmeidao
joaopalmeidao requested review from a team as code owners September 23, 2026 01:51
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📝 Walkthrough

Walkthrough

The legal-process checksum formula now uses 98 instead of 97. Tests and examples were updated to reflect the corrected check digits.

Changes

Legal process check-digit correction

Layer / File(s) Summary
Correct the check-digit formula and examples
brutils/legal_process.py, tests/test_legal_process.py, README.md, README_EN.md, CHANGELOG.md
The checksum calculation now uses 98 instead of 97. Tests verify generated IDs against the MOD 97-10 congruence, validate real process IDs, and reject altered check digits. Code examples and the changelog reflect the correction.

Estimated code review effort: 2 (Simple) | ~10 minutes

Suggested reviewers: antoniamaia

Merge Risk: ⚪ Minimal · up to ef1c5

No actionable merge-blocking issue is established from the supplied evidence; normal checks remain appropriate before merging.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 42.86% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 7 functions across 2 files. (2 skipped: 2… Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (4 passed)
Check name Status Explanation
Description check ✅ Passed A descrição explica o problema, detalha as mudanças, registra testes e ferramentas de IA, marca o checklist, inclui o changelog, atualiza a documentação e referencia a issue relacionada.
Title check ✅ Passed O título descreve de forma clara e específica a correção principal do cálculo do dígito verificador, incluindo o uso de 98 conforme a Resolução CNJ 65/2008.
Linked Issues check ✅ Passed Issue #784 requires the CNJ check digit formula 98 - ((N * 100) mod 97), corrected expected values, and tests for real and generated process numbers. The PR updates _checksum, validation examples,…
Out of Scope Changes check ✅ Passed The changes remain within issue #784. The implementation, tests, examples, documentation, and changelog entry support the check-digit correction. The PR does not change the legal-process ID table or t…
Full details: Docstring Coverage

Explanation

Docstring coverage is 42.86% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 7 functions across 2 files. (2 skipped: 2 unsupported.)

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.09%. Comparing base (f32825f) to head (b5c970d).

Additional details and impacted files
@@           Coverage Diff           @@
##             main     #785   +/-   ##
=======================================
  Coverage   99.09%   99.09%           
=======================================
  Files          26       26           
  Lines         775      775           
=======================================
  Hits          768      768           
  Misses          7        7           

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Actionable comments posted: 1


ℹ️ Autofix skipped. No unresolved review comments with fix instructions found.

  • 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@brutils/legal_process.py`:
- Line 135: Update the examples for generate to use years accepted by the
generator and show the corresponding generated IDs; revise each no-argument
example to show the result for the default year. In brutils/legal_process.py at
line 135, update the explicit and adjacent no-argument examples; in README.md at
line 1106 and README_EN.md at line 1107, update the 2025 and 2024 calls and
outputs, plus the default-year examples.

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Comment thread brutils/legal_process.py Outdated
generate() devolve None para anos passados, então os exemplos com 2023,
2024 e 2025 mostravam saídas impossíveis de obter. O README em português
também usava o argumento inexistente ano= em vez de year=.
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Autofix skipped. No unresolved review comments with fix instructions found.

@brazilian-utils brazilian-utils deleted a comment from coderabbitai Bot Sep 24, 2026

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muito obrigado pela contribuição @joaopalmeidao 😁

@niltonpimentel02
niltonpimentel02 merged commit dc14ab8 into brazilian-utils:main Sep 24, 2026
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Dígito verificador do processo jurídico (CNJ) calculado com 97 em vez de 98

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