fix(entity_file): emit clear error when schema header field has no type

[gkorland]

Summary

In schema mode, convert_header_with_schema split each header field on : and immediately indexed pair[1]. If a field contained no colon (e.g. name instead of name:STRING), this raised an opaque IndexError: list index out of range instead of a helpful schema validation error.

Changes

• falkordb_bulk_loader/entity_file.py: detect len(pair) < 2 after the existing len(pair) > 2 check and raise a descriptive CSVError ("Schema header field '' is missing a type (expected 'name:TYPE')").

Testing

uv run flake8 falkordb_bulk_loader clean.

Memory / Performance Impact

N/A.

Related Issues

From the comprehensive code-review report (BUG-4).

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 89e0ec9b-b134-40e9-b4de-2d64918f7228

📥 Commits

Reviewing files that changed from the base of the PR and between 3954856 and 213b890.

📒 Files selected for processing (2)

• falkordb_bulk_loader/entity_file.py
• test/test_label.py

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/header-missing-type

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.54%. Comparing base (3954856) to head (213b890).
⚠️ Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #66      +/-   ##
==========================================
+ Coverage   89.50%   89.54%   +0.03%     
==========================================
  Files           9        9              
  Lines         610      612       +2     
==========================================
+ Hits          546      548       +2     
  Misses         64       64              

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[gkorland]

Copilot Code Review

✅ No significant issues found.

[gkorland]

Agent Review Summary

PR: fix(entity_file): emit clear error when schema header field has no type

Changes reviewed: falkordb_bulk_loader/entity_file.py — 7 additions, 0 deletions.

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✅ Code Review

The fix is correct and minimal:

• Adds a len(pair) < 2 guard immediately after the existing len(pair) > 2 guard in convert_header_with_schema
• Raises a descriptive CSVError("... is missing a type (expected 'name:TYPE')") instead of an opaque IndexError
• No logic regressions; the happy path is unchanged

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🔧 Actions Taken

1. Rebased onto master (branch was 5 commits behind)
2. Added missing test test_schema_header_field_missing_type_raises in test/test_label.py to cover the new error branch — this closed the Codecov patch coverage gap (was 50 %, now 100 %)
3. Force-pushed with --force-with-lease

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🟢 CI Status

All 9 checks passed after the push:

• CI/Test with Python 3.10 ✅
• CI/Test with Python 3.11 ✅
• CI/Code linting ✅
• CodeQL (python + actions) ✅
• codecov/patch ✅ (was ❌ before)
• codecov/project ✅ (was ❌ before)
• CodeRabbit ✅

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📝 No blocking issues found. Ready to merge.