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tests: cover structural_impact.py pure helpers; thread repo_root and align path resolution

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Evaluación

Dificultad
4/5
Tiempo estimado
3-5 días
Aptitud para principiantes
56/100
Tipo de issue
Refactorización
Claridad
Bastante claro
Estado de actividad
Tranquilo
Stack tecnológico
github-actions, python

Línea de trabajo

Empieza por .agents/tools/structural_impact.py, especialmente _get_package, _dedup, _collect_source_files, _unknown_package_dirs, _rel, _changed_files_mode y _full_mode; después inspecciona el PR #567 y los workflows de CI agentic existentes. Añade .agents/tools/tests/test_structural_impact.py para los casos indicados, intégralo en CI y verifica el manejo explícito de repo_root y la resolución simétrica de rutas con el conjunto de pruebas.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

task
Priority Level

Medium

Task Summary

Add unit-test coverage for the pure helpers in .agents/tools/structural_impact.py and clean up two latent issues that get cheap to fix in the same pass: the module-level _REPO_ROOT global and the asymmetric .resolve() between changed-files paths and source-file paths.

Follow-up to PR #567 review feedback from @nabinchha.

Technical Details & Implementation Plan
  1. Unit tests — add .agents/tools/tests/test_structural_impact.py covering:

    • _get_package — engine / config / interface / external paths, including the data-designer vs data-designer-engine substring-precedence ordering
    • _dedup — collisions on shared label prefixes (regression guard for the bug fixed in bfc5db69)
    • _collect_source_files — smoke test against a tmp dir with mock packages/<name>/src/... layout
    • _unknown_package_dirs — synthetic packages outside _KNOWN_PACKAGE_DIRS
  2. CI wiring — .agents/tools/ lives outside the three package test suites, so make test won't pick it up. Decide between (a) a new Makefile target, (b) a step in agentic-ci-pr-review.yml / agentic-ci-daily.yml, or (c) folding into an existing CI workflow. Lean toward (b) since the file's own change cadence is tied to the agentic-CI surface.

  3. Thread repo_root through helpers — replace the module-level _REPO_ROOT global + global _REPO_ROOT mutation in main() with explicit parameter passing through _collect_source_files, _unknown_package_dirs, _rel, _changed_files_mode, _full_mode. Removes test-time fragility (no need to mutate a global to vary input) and decouples the otherwise-pure helpers from module state.

  4. Symmetric path resolution — once helpers take repo_root explicitly, either drop .resolve() on changed_paths (current _changed_files_mode:198) or also .resolve() paths inside _collect_source_files. Latent today because no symlinks live under packages/, but the symmetric form removes a future-divergence trap.

Investigation / Context

PR #567 review thread: https://github.com/NVIDIA-NeMo/DataDesigner/pull/567 (review by @nabinchha and follow-up at https://github.com/NVIDIA-NeMo/DataDesigner/pull/567#issuecomment-4373073701)

Relevant prior fixes that justify the test coverage:

  • bfc5db69 — _dedup 30-char prefix-collision bug (pre-merge)
  • 55f0bdda — changed_node_ids ID-stability bug (pre-merge)

Both bugs were caught during review; tests would have surfaced them earlier and would protect against the most likely future failure mode (graphify API drift at the loose graphifyy==0.4.23 pin).

Dependencies

None

Lenguaje dominante
Python
Estrellas
2.3k
Forks
227
Merge medio
22 h 51 min
PR fusionados (30 d)
61

Preparar el entorno

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

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