No test file existed for exporter.go. This adds 16 cases:
extractDescription (7 cases):
- Frontmatter with description line
- No frontmatter, first non-comment line
- All comments → empty
- Empty input → empty
- Unclosed frontmatter → empty (inFrontmatter stays true)
- Frontmatter → comment → content
- Empty lines before first content → first content returned
splitLines (5 cases):
- Basic split
- Trailing newline → no trailing empty segment
- No newline → single segment
- Empty string → no segments
- Only newlines → N empty segments for N newlines
findConfigDir (6 cases):
- Name match → returns that directory
- No match → fallback to first-with-config.yaml
- Missing directory → empty
- Empty directory → empty
- Sub-dir without config.yaml → skipped
- Fallback is FIRST, not last (ordering verified)
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Molecule AI Fullstack Engineer
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