test: add integration tests for sentence-length rule

[r4ai]

TODO:

• Add following test cases:
  • single line comment
  • multi line comment
  • elements immediately following a comment
  • term list
  • nested block elements (e.g., lists)
  • math
  • figure
• Skip failing tests

Notes

The following test cases are failing because of an implementation bug:

• should handle elements immediately below comments

  • Current Behavior: Elements placed immediately after a comment are incorrectly wrapped in a Paragraph node.
  • Expected Behavior: They should not be wrapped in a Paragraph, consistent with the behavior of elements that do not follow comments.

• should handle nested lists

  • Current Behavior: When non-sentence elements (e.g., functions) are included as list items, they are automatically wrapped in a Paragraph. This causes them to be incorrectly targeted by sentence-length validation, leading to failures.

  • Expected Behavior: These elements should not be wrapped in a Paragraph. Their behavior should align with top-level elements (not in a list), which are not wrapped and thus exempt from sentence-length checks.

  • Example:

    Input:

    - Item 1
    
      #figure()

    Actual AST:

    Item/
      Paragraph/
        Text
        Figure
    

    Expected AST:

    Item/
      Paragraph/
        Text
      Figure
    

• should detect violations in term lists

  • Current Behavior: Items in a term list are currently not wrapped in a Paragraph. As a result, sentence-length validation is not triggered even when an item contains a long sentence.
  • Expected Behavior: Term list items (e.g., sentences) should be wrapped in a Paragraph to ensure they are subject to the same validation rules as ordered or unordered list items.

[Copilot]

Pull request overview

This PR adds comprehensive integration tests for the textlint-rule-sentence-length rule to verify that the Typst plugin correctly handles various document structures. The tests ensure that sentence length validation is properly applied to regular text while ignoring comments, math blocks, and other non-text elements.

Key changes:

• Added 10 integration test cases covering comments, lists, math blocks, figures, and nested content
• Created fixture files demonstrating valid and invalid scenarios for sentence length validation
• Added textlint-rule-sentence-length (v5.2.1) as a dev dependency

Reviewed changes

Copilot reviewed 12 out of 13 changed files in this pull request and generated 1 comment.

File	Description
test/integration/linting.test.ts	Added new test suite with helper functions and 10 test cases for sentence-length rule validation
test/integration/fixtures/smoke/textlint-rule-sentence-length/*.typ	Created fixture files for testing various scenarios (comments, lists, math, figures, nested content)
package.json	Added textlint-rule-sentence-length v5.2.1 as a dev dependency
bun.lock	Updated lock file with new dependency and its transitive dependencies

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[Copilot]

Pull request overview

Copilot reviewed 12 out of 13 changed files in this pull request and generated 5 comments.

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[Copilot]

Pull request overview

Copilot reviewed 12 out of 13 changed files in this pull request and generated no new comments.

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[3w36zj6]

Thanks!