"""
Python Test Package — Phase 6 Testing Suite

Structure:
    tests/
    ├── __init__.py               (this file)
    ├── conftest.py               — shared fixtures (test DB, async session)
    ├── test_visit_model.py       — Pydantic schema unit tests
    ├── test_analytics_service.py — AnalyticsService unit tests
    ├── test_pdf_service.py       — PDFService unit tests
    └── test_api_integration.py   — Full endpoint integration tests (httpx)

Run:
    cd python
    pytest -v                      # all tests
    pytest -v tests/               # same, explicit
    pytest --cov=. --cov-report=html  # with coverage
"""