Fix issue updateSymbolEnds method

[LonelyMidoriya]

Issue was caused by adding of element to symbolEnds even if length of text value was 0

Summary by CodeRabbit

• Bug Fixes
  • Corrected handling of zero-length text segments to prevent unintended endpoint changes.
  • Preserved existing endpoint behavior for single-character and longer text segments.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: bcd2e246-c269-4298-a95f-7ecc014fe962

📥 Commits

Reviewing files that changed from the base of the PR and between 2d86a4f and 450eca6.

📒 Files selected for processing (1)

• wcag-validation/src/main/java/org/verapdf/gf/model/factory/chunks/TextChunksHelper.java

Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review.

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📝 Walkthrough

Walkthrough

updateSymbolEnds now ignores zero-length input without modifying symbolEnds. Existing behavior remains for single-length and longer inputs.

Changes

Symbol endpoint handling

Layer / File(s)	Summary
Endpoint length branching wcag-validation/src/main/java/org/verapdf/gf/model/factory/chunks/TextChunksHelper.java	updateSymbolEnds returns early for zero length. Length one remains a single endpoint case, and longer lengths retain interpolation.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: ⚪ Minimal · up to 450ec

This is a small, localized fix to prevent empty text values from being added to symbol ends. No actionable merge-blocking risk remains beyond normal checks and review.

Suggested reviewers: maximplusov

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 2 functions across 1 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title identifies the affected method and states that the pull request fixes its behavior. It is related to the main change, although it does not specify the zero-length input issue.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches 💡 1

📝 Generate docstrings 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch symbol-ends

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