🧪 [test extract_session_id fallbacks in harvest.py]

[masuda-so]

🧪 Testing Improvement: Harvest Session ID Fallbacks

🎯 What:

The testing gap addressed was the lack of unit tests for the extract_session_id function in scripts/harvest.py. This function handles critical session identification logic with multiple fallback layers and string normalization.

📊 Coverage:

The new test suite in scripts/tests/test_harvest.py covers:

• Priority Logic: Confirms event["session_id"] is preferred over event["sessionId"] and environment variables.
• Environment Fallbacks: Verifies CLAUDE_SESSION_ID and CLAUDE_CODE_SESSION_ID are used when event keys are missing.
• Defaulting: Ensures "unknown-session" is returned if no identifiers are found.
• Normalization: Validates regex-based character replacement and stripping of leading/trailing dashes.
• Edge Cases: Handles non-string inputs and inputs that become empty after normalization.

Additionally, scripts/tests/test_index_vault.py was updated to align with the existing json_each(?) implementation in scripts/index-vault.py, resolving pre-existing test failures.

✨ Result:

Improved reliability of the knowledge harvesting pipeline by ensuring session tracking logic is robust and correctly handles various execution environments. All 88 unit tests and the integration test suite are now passing.

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PR created automatically by Jules for task 8390380699473989570 started by @masuda-so

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