test: add unit tests for PanelRenderer module

[rafaelscosta]

Summary

• Port test: add unit tests for PanelRenderer module #501 PanelRenderer coverage onto current main in SynkraAI/aiox-core.
• Replace the stale .aios-core import with current .aiox-core resolution from the repository root.
• Avoid a new no-control-regex lint warning by constructing the ANSI escape regex without embedding a control character.

Validation

• npm test -- tests/core/ui/panel-renderer.test.js --runInBand --forceExit
• npm run lint (passes with the existing 114 warnings, 0 errors)
• npm run typecheck
• git diff --check origin/main...HEAD && git diff --check

Supersedes #501.

Summary by CodeRabbit

• Tests
  • Added comprehensive test suite for panel rendering functionality, validating core rendering helpers, formatting utilities, and output behavior across various scenarios and edge cases including empty content, overlong content, missing data, and special fallback behavior across multiple rendering modes.

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Project	Deployment	Actions	Updated (UTC)
aiox-core	Ready	Preview, Comment	May 8, 2026 1:26am

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 5697509b-41ff-4259-abfb-12a47b27f73e

📥 Commits

Reviewing files that changed from the base of the PR and between a2bbcf3 and cb60a33.

📒 Files selected for processing (1)

• tests/core/ui/panel-renderer.test.js

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Walkthrough

This pull request adds a comprehensive Jest test suite for the PanelRenderer module. The suite validates constructor behavior, rendering helper functions, utility methods for ANSI stripping and elapsed time formatting, and main rendering functions (renderPipeline, renderMinimal, renderDetailed), with assertions on output structure, content truncation limits, and edge-case handling.

Changes

PanelRenderer Test Suite

Layer / File(s)	Summary
Setup and Exports tests/core/ui/panel-renderer.test.js	Test environment disables FORCE_COLOR for stable output, provides stripAnsi utility for assertions, and verifies exported symbols (PanelRenderer, BOX, STATUS constants).
Constructor Options tests/core/ui/panel-renderer.test.js	Constructor tests validate default width, custom width acceptance, and options merging with debug flag.
Rendering Helpers tests/core/ui/panel-renderer.test.js	Core rendering primitives (horizontalLine, topBorder, bottomBorder, separator, contentLine) are tested for correct width handling, border characters, and graceful overflow.
Utility Functions tests/core/ui/panel-renderer.test.js	stripAnsi removes ANSI escape codes; formatElapsedTime formats elapsed duration, returning -- for missing/zero timestamps.
Main Rendering Functions tests/core/ui/panel-renderer.test.js	renderPipeline lists stages and marks completion; renderMinimal outputs compact format with agent info and active terminals (limited to 3), errors truncated to 50 chars; renderDetailed outputs verbose format with agent details, terminals (limited to 4), trade-offs (limited to 3), next steps (limited to 3), and errors (limited to 2, truncated to 45 chars).

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Suggested labels

type: test, area: core

Suggested reviewers

• oalanicolas
• Pedrovaleriolopez

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and accurately describes the main change: adding unit tests for the PanelRenderer module, which aligns perfectly with the file additions and PR objectives.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch devops/pr-501-panel-renderer-current-20260507

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