Francis Secada 6745b3c870 test: add comprehensive regression tests for PDF download error handling ...

Tests mock the exact production bug scenario:
- Session exists but result is None → 404 with proper Response

Regression Tests:
- test_download_pdf_without_session_returns_404
  → No session ID error path
- test_download_pdf_without_result_returns_404
  → Session but no result (EXACT production bug)
- test_download_pdf_error_paths_use_response_not_streaming
  → Verifies Response used, not StreamingResponse

Additional Tests:
- test_download_pdf_returns_pdf_file
  → Successful PDF generation and download
- test_download_pdf_uses_cache
  → PDF caching behavior validation
- test_download_pdf_filename_format
  → Filename format verification

Mocking Strategy:
- Use unittest.mock.MagicMock for request.session
- Mock session.get() to return test session_id
- Call download_pdf() handler directly with mocked request
- Avoids TestClient session middleware complications

Coverage Improvements:
- pdf_service.py: 31% → 99%
- pdf_cache.py: 37% → 76%
- router.py: 35% → 53%
- Overall: 49% → 63%

All tests pass and prevent regression of AttributeError bug.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

2026-02-04 15:59:36 -05:00

..

__init__.py

feat: add pytest infrastructure and regression tests

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test_analyze_flow.py

feat: add pytest infrastructure and regression tests

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test_pdf_export.py

test: add comprehensive regression tests for PDF download error handling

2026-02-04 15:59:36 -05:00