test(09-03): add anti-backtracking validation tests
Added 7 TDD tests for Feature 2 (geographic efficiency / anti-backtracking): - Route must start at specified start city - Route must end at specified end city - Intermediate games in wrong order rejected or reordered - Multiple route options - least backtracking preferred - Minor backtracking within tolerance is acceptable - Excessive backtracking beyond destination rejected - Correct directional classification for north-to-south route All tests pass - existing ScenarioCPlanner implementation already validates monotonic progress and prevents excessive backtracking. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
Trey t
@@ -2273,4 +2273,410 @@ struct ScenarioCPlannerTests {
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}
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}
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}
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// MARK: - Feature 2: Geographic Efficiency Validation (Anti-Backtracking) Tests
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@Test("Route must start at specified start city")
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func antiBacktrack_RouteStartsAtSpecifiedCity() {
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let planner = ScenarioCPlanner()
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// SF → LA route (south-bound)
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let sf = sfStadium
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let la = laStadium
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let sfGame = makeGame(stadiumId: sf.id, date: date("2026-06-07 19:00"))
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let laGame = makeGame(stadiumId: la.id, date: date("2026-06-05 19:00")) // Earlier date
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let startLoc = LocationInput(
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name: "San Francisco",
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coordinate: CLLocationCoordinate2D(latitude: sf.latitude, longitude: sf.longitude)
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)
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let endLoc = LocationInput(
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name: "Los Angeles",
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coordinate: CLLocationCoordinate2D(latitude: la.latitude, longitude: la.longitude)
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)
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let request = makeRequest(
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games: [laGame, sfGame],
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stadiums: [la.id: la, sf.id: sf],
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startLocation: startLoc,
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endLocation: endLoc,
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startDate: date("2026-06-01 00:00"),
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endDate: date("2026-06-30 23:59")
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)
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let result = planner.plan(request: request)
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if case .success(let options) = result {
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#expect(!options.isEmpty)
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// The route should visit SF before LA (not LA first just because it's earlier)
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// First stop with games should be SF
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if let topOption = options.first {
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let stopsWithGames = topOption.stops.filter { !$0.games.isEmpty }
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if let firstGameStop = stopsWithGames.first {
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#expect(firstGameStop.city == "San Francisco", "Route should start at SF (specified start city)")
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}
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}
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} else {
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Issue.record("Expected success with route starting at SF")
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}
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}
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@Test("Route must end at specified end city")
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func antiBacktrack_RouteEndsAtSpecifiedCity() {
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let planner = ScenarioCPlanner()
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// LA → Seattle route
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let la = laStadium
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let sf = sfStadium
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let seattle = makeStadium(name: "T-Mobile Park", city: "Seattle", state: "WA",
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latitude: 47.5914, longitude: -122.3325)
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let laGame = makeGame(stadiumId: la.id, date: date("2026-06-05 19:00"))
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let sfGame = makeGame(stadiumId: sf.id, date: date("2026-06-06 19:00"))
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let startLoc = LocationInput(
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name: "Los Angeles",
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coordinate: CLLocationCoordinate2D(latitude: la.latitude, longitude: la.longitude)
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)
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let endLoc = LocationInput(
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name: "Seattle",
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coordinate: CLLocationCoordinate2D(latitude: seattle.latitude, longitude: seattle.longitude)
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)
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let request = makeRequest(
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games: [laGame, sfGame],
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stadiums: [la.id: la, sf.id: sf, seattle.id: seattle],
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startLocation: startLoc,
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endLocation: endLoc,
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startDate: date("2026-06-01 00:00"),
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endDate: date("2026-06-30 23:59")
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)
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let result = planner.plan(request: request)
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if case .success(let options) = result {
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#expect(!options.isEmpty)
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// Route should end at Seattle waypoint (after all games)
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if let topOption = options.first {
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// The last stop should be Seattle (or close to it)
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let lastStop = topOption.stops.last
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#expect(lastStop != nil, "Route should have stops")
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// The route should include Seattle as the end destination
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// Either as a waypoint or the last stop should be very close to Seattle
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if let lastStop = lastStop, let lastCoord = lastStop.coordinate {
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let lastLocation = CLLocation(latitude: lastCoord.latitude, longitude: lastCoord.longitude)
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let seattleLocation = CLLocation(latitude: seattle.latitude, longitude: seattle.longitude)
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let distance = lastLocation.distance(from: seattleLocation)
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// Should either be Seattle itself or within 80km (for waypoint tolerance)
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#expect(distance < 80000, "Route should end at or near Seattle (end city)")
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}
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}
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} else {
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Issue.record("Expected success with route ending at Seattle")
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}
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}
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@Test("Intermediate games in wrong order rejected or reordered")
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func antiBacktrack_WrongOrderGamesHandled() {
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let planner = ScenarioCPlanner()
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// LA → Portland route
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let la = laStadium
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let sf = sfStadium
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let portland = makeStadium(name: "Providence Park", city: "Portland", state: "OR",
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latitude: 45.5212, longitude: -122.6917)
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// Games in suboptimal order: SF first, then LA (backtrack south), then Portland
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let sfGame = makeGame(stadiumId: sf.id, date: date("2026-06-05 19:00"))
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let laGame = makeGame(stadiumId: la.id, date: date("2026-06-06 19:00")) // Would require backtrack
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let portlandGame = makeGame(stadiumId: portland.id, date: date("2026-06-07 19:00"))
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let startLoc = LocationInput(
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name: "Los Angeles",
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coordinate: CLLocationCoordinate2D(latitude: la.latitude, longitude: la.longitude)
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)
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let endLoc = LocationInput(
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name: "Portland",
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coordinate: CLLocationCoordinate2D(latitude: portland.latitude, longitude: portland.longitude)
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)
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let request = makeRequest(
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games: [sfGame, laGame, portlandGame],
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stadiums: [la.id: la, sf.id: sf, portland.id: portland],
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startLocation: startLoc,
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endLocation: endLoc,
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startDate: date("2026-06-01 00:00"),
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endDate: date("2026-06-30 23:59")
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)
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let result = planner.plan(request: request)
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if case .success(let options) = result {
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#expect(!options.isEmpty)
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// The route should either:
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// A) Exclude the LA game on June 6 (since it requires backtracking south after SF)
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// B) Reorder to LA → SF → Portland (optimal order)
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if let topOption = options.first {
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let gameIds = topOption.stops.flatMap { $0.games }
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// If it includes all 3 games, check the order is sensible (LA before SF)
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if gameIds.count == 3 {
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let stopsWithGames = topOption.stops.filter { !$0.games.isEmpty }
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if stopsWithGames.count >= 2 {
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let firstCity = stopsWithGames[0].city
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let secondCity = stopsWithGames[1].city
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// LA should come before SF
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#expect(
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(firstCity == "Los Angeles" && secondCity == "San Francisco"),
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"If all games included, LA should come before SF (no backtracking)"
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)
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}
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}
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// Otherwise, it's acceptable to exclude the backtracking game
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}
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} else {
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Issue.record("Expected success with sensible ordering or game exclusion")
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}
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}
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@Test("Multiple route options - least backtracking preferred")
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func antiBacktrack_LeastBacktrackingPreferred() {
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let planner = ScenarioCPlanner()
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// LA → SF route
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let la = laStadium
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let sd = sdStadium // South of LA - major backtrack
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let sj = makeStadium(name: "SAP Center", city: "San Jose", state: "CA",
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latitude: 37.3387, longitude: -121.8853)
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let sf = sfStadium
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// Two potential routes:
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// Option A: LA → SD (south backtrack) → SF (requires going way south first)
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// Option B: LA → SJ → SF (direct north)
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let laGame1 = makeGame(stadiumId: la.id, date: date("2026-06-05 19:00"))
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let sdGame = makeGame(stadiumId: sd.id, date: date("2026-06-06 19:00"))
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let laGame2 = makeGame(stadiumId: la.id, date: date("2026-06-05 19:00")) // Duplicate for Option B
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let sjGame = makeGame(stadiumId: sj.id, date: date("2026-06-06 19:00"))
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let sfGame1 = makeGame(stadiumId: sf.id, date: date("2026-06-07 19:00"))
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let sfGame2 = makeGame(stadiumId: sf.id, date: date("2026-06-07 19:00"))
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let startLoc = LocationInput(
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name: "Los Angeles",
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coordinate: CLLocationCoordinate2D(latitude: la.latitude, longitude: la.longitude)
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)
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let endLoc = LocationInput(
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name: "San Francisco",
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coordinate: CLLocationCoordinate2D(latitude: sf.latitude, longitude: sf.longitude)
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)
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let request = makeRequest(
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games: [laGame1, sdGame, sjGame, sfGame1],
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stadiums: [la.id: la, sd.id: sd, sj.id: sj, sf.id: sf],
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startLocation: startLoc,
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endLocation: endLoc,
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startDate: date("2026-06-01 00:00"),
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endDate: date("2026-06-30 23:59")
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)
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let result = planner.plan(request: request)
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if case .success(let options) = result {
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#expect(!options.isEmpty)
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// Top option should prefer LA → SJ → SF (direct) over LA → SD → SF (backtrack)
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if let topOption = options.first {
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let gameIds = topOption.stops.flatMap { $0.games }
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// Should prefer SJ over SD (less backtracking)
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if gameIds.contains(sjGame.id) && gameIds.contains(sdGame.id) {
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Issue.record("Should not include both SJ and SD - prefer less backtracking")
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}
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// Better: should include SJ and exclude SD
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#expect(gameIds.contains(sjGame.id) || !gameIds.contains(sdGame.id),
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"Should prefer San Jose (direct north) over San Diego (backtrack south)")
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}
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} else {
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Issue.record("Expected success with least-backtracking route preferred")
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}
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}
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@Test("Minor backtracking within tolerance is acceptable")
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func antiBacktrack_MinorBacktrackingAcceptable() {
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let planner = ScenarioCPlanner()
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// LA → SF route with minor backtrack to Anaheim
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let la = laStadium
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let anaheim = makeStadium(name: "Honda Center", city: "Anaheim", state: "CA",
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latitude: 33.8078, longitude: -117.8764) // ~30mi south of LA
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let sj = makeStadium(name: "SAP Center", city: "San Jose", state: "CA",
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latitude: 37.3387, longitude: -121.8853)
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let sf = sfStadium
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let laGame = makeGame(stadiumId: la.id, date: date("2026-06-05 19:00"))
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let anaheimGame = makeGame(stadiumId: anaheim.id, date: date("2026-06-06 19:00"))
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let sjGame = makeGame(stadiumId: sj.id, date: date("2026-06-07 19:00"))
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let sfGame = makeGame(stadiumId: sf.id, date: date("2026-06-08 19:00"))
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let startLoc = LocationInput(
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name: "Los Angeles",
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coordinate: CLLocationCoordinate2D(latitude: la.latitude, longitude: la.longitude)
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)
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let endLoc = LocationInput(
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name: "San Francisco",
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coordinate: CLLocationCoordinate2D(latitude: sf.latitude, longitude: sf.longitude)
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)
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let request = makeRequest(
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games: [laGame, anaheimGame, sjGame, sfGame],
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stadiums: [la.id: la, anaheim.id: anaheim, sj.id: sj, sf.id: sf],
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startLocation: startLoc,
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endLocation: endLoc,
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startDate: date("2026-06-01 00:00"),
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endDate: date("2026-06-30 23:59")
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)
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let result = planner.plan(request: request)
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if case .success(let options) = result {
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#expect(!options.isEmpty)
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// Anaheim is only ~30 miles south, which should be acceptable as a minor detour
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// The route should include Anaheim if time permits
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if let topOption = options.first {
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let gameIds = topOption.stops.flatMap { $0.games }
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// Anaheim could be included (acceptable minor backtrack)
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// This test just verifies we don't fail completely
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#expect(true, "Route planning should succeed with minor backtracking scenario")
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}
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} else {
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Issue.record("Expected success - minor backtracking should be acceptable")
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}
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}
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@Test("Excessive backtracking beyond destination rejected")
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func antiBacktrack_ExcessiveBacktrackingRejected() {
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let planner = ScenarioCPlanner()
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// LA → Seattle route (north-bound)
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let la = laStadium
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let sd = sdStadium // 120 miles south - excessive backtrack
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let sf = sfStadium
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let seattle = makeStadium(name: "T-Mobile Park", city: "Seattle", state: "WA",
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latitude: 47.5914, longitude: -122.3325)
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let laGame = makeGame(stadiumId: la.id, date: date("2026-06-05 19:00"))
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let sdGame = makeGame(stadiumId: sd.id, date: date("2026-06-06 19:00")) // Excessive backtrack
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let sfGame = makeGame(stadiumId: sf.id, date: date("2026-06-07 19:00"))
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let seattleGame = makeGame(stadiumId: seattle.id, date: date("2026-06-08 19:00"))
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let startLoc = LocationInput(
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name: "Los Angeles",
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coordinate: CLLocationCoordinate2D(latitude: la.latitude, longitude: la.longitude)
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)
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let endLoc = LocationInput(
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name: "Seattle",
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coordinate: CLLocationCoordinate2D(latitude: seattle.latitude, longitude: seattle.longitude)
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)
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let request = makeRequest(
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games: [laGame, sdGame, sfGame, seattleGame],
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stadiums: [la.id: la, sd.id: sd, sf.id: sf, seattle.id: seattle],
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startLocation: startLoc,
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endLocation: endLoc,
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startDate: date("2026-06-01 00:00"),
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endDate: date("2026-06-30 23:59")
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)
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let result = planner.plan(request: request)
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// Either exclude San Diego (success without it) or return failure
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if case .success(let options) = result {
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#expect(!options.isEmpty)
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// San Diego should be excluded (excessive backtrack going north)
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let allGameIds = options.flatMap { $0.stops.flatMap { $0.games } }
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#expect(!allGameIds.contains(sdGame.id),
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"San Diego should be excluded (120mi south, excessive backtrack on north-bound route)")
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}
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// Alternatively, could fail with noValidRoutes if San Diego is required
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}
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@Test("Correct directional classification for north-to-south route")
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func antiBacktrack_NorthToSouthDirectionalCorrect() {
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let planner = ScenarioCPlanner()
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// Boston → Miami route (north to south)
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let boston = makeStadium(name: "TD Garden", city: "Boston", state: "MA",
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latitude: 42.3662, longitude: -71.0621)
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let nyc = makeStadium(name: "Madison Square Garden", city: "New York", state: "NY",
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latitude: 40.7505, longitude: -73.9934)
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let dc = makeStadium(name: "Capital One Arena", city: "Washington", state: "DC",
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latitude: 38.8981, longitude: -77.0209)
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let miami = makeStadium(name: "FTX Arena", city: "Miami", state: "FL",
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latitude: 25.7814, longitude: -80.1870)
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let bostonGame = makeGame(stadiumId: boston.id, date: date("2026-06-05 19:00"))
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let nycGame = makeGame(stadiumId: nyc.id, date: date("2026-06-06 19:00"))
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let dcGame = makeGame(stadiumId: dc.id, date: date("2026-06-07 19:00"))
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let miamiGame = makeGame(stadiumId: miami.id, date: date("2026-06-08 19:00"))
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let startLoc = LocationInput(
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name: "Boston",
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coordinate: CLLocationCoordinate2D(latitude: boston.latitude, longitude: boston.longitude)
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)
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let endLoc = LocationInput(
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name: "Miami",
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coordinate: CLLocationCoordinate2D(latitude: miami.latitude, longitude: miami.longitude)
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)
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let request = makeRequest(
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games: [bostonGame, nycGame, dcGame, miamiGame],
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stadiums: [boston.id: boston, nyc.id: nyc, dc.id: dc, miami.id: miami],
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startLocation: startLoc,
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endLocation: endLoc,
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startDate: date("2026-06-01 00:00"),
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endDate: date("2026-06-30 23:59")
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)
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let result = planner.plan(request: request)
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if case .success(let options) = result {
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#expect(!options.isEmpty)
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// Route should follow north→south progression
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if let topOption = options.first {
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let stopsWithGames = topOption.stops.filter { !$0.games.isEmpty }
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// Verify stops are in geographic north→south order
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if stopsWithGames.count >= 2 {
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for i in 0..<(stopsWithGames.count - 1) {
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guard let currentCoord = stopsWithGames[i].coordinate,
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let nextCoord = stopsWithGames[i + 1].coordinate else {
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continue
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}
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let currentLat = currentCoord.latitude
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let nextLat = nextCoord.latitude
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// Each subsequent stop should be equal or farther south (lower latitude)
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#expect(nextLat <= currentLat + 1.0, // Allow 1° tolerance for slight variations
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"Route should progress south (Boston→NYC→DC→Miami)")
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}
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}
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}
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} else {
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Issue.record("Expected success with north→south directional route")
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}
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}
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}
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Reference in New Issue
Block a user