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FABRIC/notes/bf-1373.md
jedarden 07fc0dc472 docs(bf-1373): verify parseDiff implementation - all tests pass 
The parseDiff function in src/tui/components/DiffView.ts correctly:
- Returns empty array for empty input
- Splits diff on newlines
- Classifies '+++' and '---' as headers (not added/removed)
- Classifies '+' lines as added
- Classifies '-' lines as removed

All 44 DiffView tests pass. No code changes needed.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-02 16:03:47 -04:00

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BF-1373: DiffView.parseDiff Verification

Bead Description

The bead described failing tests in src/tui/components/DiffView.test.ts:

  • "should parse added lines"
  • "should parse removed lines"
  • "should handle empty diff"

Investigation

All 44 tests in DiffView.test.ts pass. The parseDiff function implementation is correct:

  1. Empty input: Returns empty array (lines 62-64)
  2. Splits on newlines: diffText.split('\n') (line 65)
  3. File headers: --- and +++ classified as 'header' (lines 83-86)
  4. Added lines: Lines starting with + classified as 'added' (lines 100-107)
  5. Removed lines: Lines starting with - classified as 'removed' (lines 110-117)

The order of checks is important: file headers are checked before general +/- classification, correctly excluding --- and +++ from being treated as removed/added lines.

Conclusion

No code changes required. The issue was either already fixed before this bead was picked up, or the tests were written correctly from the start.