# Unit Tests: RouteService

**Task**: AZ-288_route_service_tests
**Name**: Unit tests: RouteService (interpolation, geofence, distance)
**Complexity**: 3 points
**Dependencies**: AZ-285
**Component**: Blackbox Tests
**Tracker**: AZ-288
**Epic**: AZ-284

## Scenarios

- BT-06: Simple 2-point route — verify intermediate points at ≤200m spacing, point types correct
- BT-07: Route retrieval — verify GET returns same route with all points
- BT-10: Complex 10-point route — verify point distribution (1 first-original, 1 last-original, 8 intermediate)
- BT-11: Geofenced route — verify geofence region creation
- BT-12: Extended 20-point route — verify point distribution (1 first-original, 1 last-original, 18 intermediate)
- BT-N03: Route with <2 points — verify validation error
- BT-N04/N05: Invalid geofences — verify validation errors

## Test Data

Route points from test_coordinates.md (ROUTE-01 through ROUTE-06)

## Acceptance Criteria

AC-1: Point interpolation produces spacing ≤200m between all consecutive points
AC-2: Point type assignment is correct (original/intermediate)
AC-3: Total distance is calculated via Haversine
AC-4: Negative cases return appropriate errors
