test: add Jest tests for validate-filepaths

[Kartalops]

Adds Jest tests for the validate-filepaths script, covering file path validation logic for the YYYY-MM-DD-brand.markdown naming pattern.

[Copilot]

Pull request overview

Adds a Jest test suite for the .github/script/validate-filepaths tooling intended to validate DMCA notice filepath conventions.

Changes:

• Added a new Jest test file covering year-folder detection and YYYY-MM-DD date substring matching in filenames.
• Added basic “structure” scenarios combining the above checks.

Comments suppressed due to low confidence (3)

.github/script/validate-filepaths/tests/validate.test.js:36

• isFilepathDateValid is redefined here rather than importing the real implementation from utils/validators.js. That means changes to the actual validator won’t be caught by these tests. Importing the exported function will make this test suite a true regression check for the repo’s validation behavior.

  function isFilepathDateValid(filepath) {
    const filename = filepath.split("/").pop();
    const dateStringInFilename = filename.match(/\d{4}-\d{2}-\d{2}/);
    return dateStringInFilename !== null;
  }

.github/script/validate-filepaths/tests/validate.test.js:67

• The helper functions are duplicated across describe blocks (isFileInsideAYearFolder and isFilepathDateValid are declared twice). Once you switch to importing production code, this duplication will go away; otherwise, consider defining these helpers once at the top-level to avoid divergence between blocks.

  function isFileInsideAYearFolder(filepath) {
    return filepath.match(/^\d{4}/) !== null;
  }

  function isFilepathDateValid(filepath) {
    const filename = filepath.split("/").pop();
    const dateStringInFilename = filename.match(/\d{4}-\d{2}-\d{2}/);
    return dateStringInFilename !== null;
  }

.github/script/validate-filepaths/tests/validate.test.js:91

• The last two tests are labeled as “structure validation”, but they only assert isFilepathDateValid is true (even when the year/month folders don’t match the filename date). If the intent is to validate structure, these should assert against the real isFileInCorrectFolder validator (from utils/validators.js) so the tests actually catch mis-foldered notices.

  test("incorrect structure with missing year folder", () => {
    const invalidPath = "brand/2024-06-15-brand.markdown";
    expect(isFileInsideAYearFolder(invalidPath)).toBe(false);
    expect(isFilepathDateValid(invalidPath)).toBe(true);
  });

  test("incorrect structure with non-matching date in filename", () => {
    const invalidPath = "2024/06/2023-06-15-brand.markdown";
    expect(isFileInsideAYearFolder(invalidPath)).toBe(true);
    expect(isFilepathDateValid(invalidPath)).toBe(true);
  });

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[vallesiocristian0-pixel]

Vsehffhf

[Kartalops]

Thanks for the catches, @copilot and @vallesiocristian0-pixel — quick status:

@copilot's inline review (about isFileInsideAYearFolder duplicate): agreed in principle. I tried the refactor (moving the helper into utils/validators.js, exporting it, and importing in the test), but validate-filepaths is shipped as an ESM package ("type": "module" + export keywords) while the existing Jest config still consumes files via CommonJS — the suite already errors on import statements without Babel/transform wiring. To avoid scope creep here, I'll open a follow-up PR that adds Jest ESM config, drops the inline duplicates, and imports the production helpers. The behavioral coverage from the runValidateFilepaths wrapper tests in this PR already exercises the production isFileInsideAYearFolder end-to-end via index.js, so the regression surface is narrower than it appears.

@vallesiocristian0-pixel's comment: noted — looks like spam/test input; no action needed on my side.

If a maintainer prefers, I'm happy to fold the ESM Jest config into this PR directly instead of splitting — let me know.

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