Testing Guide

The Fever Model uses pytest for testing the LangGraph agent and the routing logic.

Test Structure

Tests are located in tests/fever_routing/:

• test_urgency.py: Tests the urgency assessment logic (red flags, age/temp criteria).
• test_graph.py: Tests the construction and execution of the LangGraph agent.

Running Tests

We recommend using uv to run tests:

# Run all tests
uv run pytest -v

# Run specific test file
uv run pytest tests/fever_routing/test_urgency.py -v

Critical Safety Tests

The most important tests are in test_urgency.py. These verify that the system correctly identifies:

• Critical Red Flags: Convulsions, respiratory distress, etc.
• Urgent Age Criteria: Infants < 3 months with fever.
• High Fever: Temperature ≥ 40°C.

These tests ensure the safety of the triage recommendations.

Adding New Tests

When modifying the routing logic (src/fever_routing/routes/triage/route.py), you MUST add corresponding tests in test_urgency.py to verify the new behavior and ensure no regressions in safety checks.