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Testing

32 tests in backend/tests/JourneyOS.Showcase.Tests, three layers:

Unit

  • Haversine — known great-circle distances (IST-MAD, LIM-CUZ, zero).
  • Normalization — flight/ground wire DTOs map to canonical UTC offers with the right mode/currency/provider; a 07:55 local departure becomes 04:55 UTC.
  • Composer — multiple distinct candidates; space + time continuity of segments; no duplicate segments; the door-to-door mode spectrum is covered; determinism (same request twice, identical totals); a failing provider removes only its candidates; unknown route gives a meaningful error; preferences filter the set.
  • Time zones — Istanbul (+03:00) and Lima (-05:00) clocks render with their own offsets; date rollover and arrival-day offset are reported.
  • Scoring — weights per profile sum to 1; normalization stays in [0,1] and flat metrics do not punish; Fastest picks min duration; Cheapest picks min price; Balanced applies weights (hand-computed winner); explanation compares to fastest.
  • Warnings — visa/health/passport on the canonical route (all demo-flagged); short connection; overnight airport; self-transfer + airport change + baggage re-check; long walk + seasonal closure.

Integration (WebApplicationFactory)

Real HTTP through the full pipeline: /health; search returns three profiles; trip / itineraries / itinerary-detail / comparison round-trip; bad input is 400, unknown trip is 404, no-route is 422 with a machine-readable error.

End-to-end

The canonical Beykoz to Machu Picchu demo over HTTP: profile picks honour their own definitions across the stored winners, currency is respected, every winner is a real door-to-door chain (international + domestic flight + hotel + activity + train or bus) with a continuous, monotonic timeline and a non-empty warning set.

Run

dotnet test JourneyOS.Showcase.slnx
# with coverage:
dotnet test JourneyOS.Showcase.slnx --collect:"XPlat Code Coverage"

Determinism strategy: no Random, no DateTime.Now. Mock prices jitter through a stable FNV-1a hash of (route, date), so a fare is identical on every machine and run.