feat: add ItineraryConstraints with full test coverage
Validates travel positions based on game locations: - Travel must be after ALL departure city games - Travel must be before ALL arrival city games - Custom items have no constraints - Games are fixed (cannot be moved) 12 tests covering all constraint scenarios including edge cases. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Trey t
247
SportsTimeTests/ItineraryConstraintsTests.swift
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247
SportsTimeTests/ItineraryConstraintsTests.swift
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import XCTest
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@testable import SportsTime
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final class ItineraryConstraintsTests: XCTestCase {
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// MARK: - Custom Item Tests (No Constraints)
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func test_customItem_canGoOnAnyDay() {
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// Given: A 5-day trip with games on days 1 and 5
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let constraints = makeConstraints(tripDays: 5, gameDays: [1, 5])
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let customItem = makeCustomItem(day: 1, sortOrder: 50)
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// When/Then: Custom item can go on any day
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XCTAssertTrue(constraints.isValidPosition(for: customItem, day: 1, sortOrder: 50))
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XCTAssertTrue(constraints.isValidPosition(for: customItem, day: 2, sortOrder: 50))
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XCTAssertTrue(constraints.isValidPosition(for: customItem, day: 3, sortOrder: 50))
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XCTAssertTrue(constraints.isValidPosition(for: customItem, day: 4, sortOrder: 50))
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XCTAssertTrue(constraints.isValidPosition(for: customItem, day: 5, sortOrder: 50))
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}
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func test_customItem_canGoBeforeOrAfterGames() {
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// Given: A day with a game at sortOrder 100
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let constraints = makeConstraints(tripDays: 3, gameDays: [2])
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let customItem = makeCustomItem(day: 2, sortOrder: 50)
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// When/Then: Custom item can go before or after game
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XCTAssertTrue(constraints.isValidPosition(for: customItem, day: 2, sortOrder: 50)) // Before
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XCTAssertTrue(constraints.isValidPosition(for: customItem, day: 2, sortOrder: 150)) // After
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}
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// MARK: - Travel Constraint Tests
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func test_travel_validDayRange_simpleCase() {
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// Given: Chicago game Day 1, Detroit game Day 3
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let constraints = makeConstraints(
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tripDays: 5,
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games: [
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makeGameItem(city: "Chicago", day: 1),
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makeGameItem(city: "Detroit", day: 3)
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]
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)
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let travel = makeTravelItem(from: "Chicago", to: "Detroit", day: 1, sortOrder: 200)
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// When
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let range = constraints.validDayRange(for: travel)
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// Then: Travel can be on days 1 (after game), 2, or 3 (before game)
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XCTAssertEqual(range, 1...3)
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}
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func test_travel_mustBeAfterDepartureGames() {
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// Given: Chicago game on Day 1 at sortOrder 100
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let constraints = makeConstraints(
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tripDays: 3,
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games: [makeGameItem(city: "Chicago", day: 1, sortOrder: 100)]
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)
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let travel = makeTravelItem(from: "Chicago", to: "Detroit", day: 1, sortOrder: 50)
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// When/Then: Travel before game is invalid
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XCTAssertFalse(constraints.isValidPosition(for: travel, day: 1, sortOrder: 50))
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// Travel after game is valid
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XCTAssertTrue(constraints.isValidPosition(for: travel, day: 1, sortOrder: 150))
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}
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func test_travel_mustBeBeforeArrivalGames() {
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// Given: Detroit game on Day 3 at sortOrder 100
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let constraints = makeConstraints(
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tripDays: 3,
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games: [makeGameItem(city: "Detroit", day: 3, sortOrder: 100)]
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)
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let travel = makeTravelItem(from: "Chicago", to: "Detroit", day: 3, sortOrder: 150)
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// When/Then: Travel after arrival game is invalid
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XCTAssertFalse(constraints.isValidPosition(for: travel, day: 3, sortOrder: 150))
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// Travel before game is valid
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XCTAssertTrue(constraints.isValidPosition(for: travel, day: 3, sortOrder: 50))
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}
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func test_travel_canBeAnywhereOnRestDays() {
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// Given: Chicago game Day 1, Detroit game Day 4, rest days 2-3
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let constraints = makeConstraints(
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tripDays: 4,
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games: [
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makeGameItem(city: "Chicago", day: 1),
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makeGameItem(city: "Detroit", day: 4)
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]
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)
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let travel = makeTravelItem(from: "Chicago", to: "Detroit", day: 2, sortOrder: 50)
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// When/Then: Any position on rest days is valid
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XCTAssertTrue(constraints.isValidPosition(for: travel, day: 2, sortOrder: 1))
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XCTAssertTrue(constraints.isValidPosition(for: travel, day: 2, sortOrder: 100))
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XCTAssertTrue(constraints.isValidPosition(for: travel, day: 2, sortOrder: 500))
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XCTAssertTrue(constraints.isValidPosition(for: travel, day: 3, sortOrder: 50))
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}
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func test_travel_mustBeAfterAllDepartureGamesOnSameDay() {
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// Given: Two games in Chicago on Day 1 (1pm and 7pm)
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let constraints = makeConstraints(
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tripDays: 3,
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games: [
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makeGameItem(city: "Chicago", day: 1, sortOrder: 100), // 1pm
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makeGameItem(city: "Chicago", day: 1, sortOrder: 101) // 7pm
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]
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)
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let travel = makeTravelItem(from: "Chicago", to: "Detroit", day: 1, sortOrder: 100.5)
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// When/Then: Between games is invalid
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XCTAssertFalse(constraints.isValidPosition(for: travel, day: 1, sortOrder: 100.5))
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// After all games is valid
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XCTAssertTrue(constraints.isValidPosition(for: travel, day: 1, sortOrder: 150))
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}
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func test_travel_mustBeBeforeAllArrivalGamesOnSameDay() {
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// Given: Two games in Detroit on Day 3 (1pm and 7pm)
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let constraints = makeConstraints(
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tripDays: 3,
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games: [
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makeGameItem(city: "Detroit", day: 3, sortOrder: 100), // 1pm
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makeGameItem(city: "Detroit", day: 3, sortOrder: 101) // 7pm
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]
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)
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let travel = makeTravelItem(from: "Chicago", to: "Detroit", day: 3, sortOrder: 100.5)
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// When/Then: Between games is invalid
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XCTAssertFalse(constraints.isValidPosition(for: travel, day: 3, sortOrder: 100.5))
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// Before all games is valid
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XCTAssertTrue(constraints.isValidPosition(for: travel, day: 3, sortOrder: 50))
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}
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func test_travel_cannotGoOutsideValidDayRange() {
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// Given: Chicago game Day 2, Detroit game Day 4
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let constraints = makeConstraints(
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tripDays: 5,
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games: [
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makeGameItem(city: "Chicago", day: 2),
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makeGameItem(city: "Detroit", day: 4)
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]
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)
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let travel = makeTravelItem(from: "Chicago", to: "Detroit", day: 1, sortOrder: 50)
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// When/Then: Day 1 (before departure game) is invalid
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XCTAssertFalse(constraints.isValidPosition(for: travel, day: 1, sortOrder: 50))
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// Day 5 (after arrival game) is invalid
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XCTAssertFalse(constraints.isValidPosition(for: travel, day: 5, sortOrder: 50))
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}
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// MARK: - Game Immutability Tests
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func test_gameItem_cannotBeMoved() {
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// Given: A game item
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let gameItem = makeGameItem(city: "Chicago", day: 2)
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let constraints = makeConstraints(tripDays: 5, games: [gameItem])
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// When/Then: Game items should never be valid for any position
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XCTAssertFalse(constraints.isValidPosition(for: gameItem, day: 2, sortOrder: 100))
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XCTAssertFalse(constraints.isValidPosition(for: gameItem, day: 3, sortOrder: 100))
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XCTAssertFalse(constraints.isValidPosition(for: gameItem, day: 1, sortOrder: 50))
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}
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// MARK: - Edge Case Tests
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func test_travel_validDayRange_returnsNil_whenConstraintsImpossible() {
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// Given: Departure game on Day 3, Arrival game on Day 1 (reversed order)
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let constraints = makeConstraints(
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tripDays: 3,
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games: [
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makeGameItem(city: "Chicago", day: 3), // Must depart AFTER day 3
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makeGameItem(city: "Detroit", day: 1) // Must arrive BEFORE day 1
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]
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)
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let travel = makeTravelItem(from: "Chicago", to: "Detroit", day: 2, sortOrder: 50)
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// When/Then: No valid range exists (impossible constraints)
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XCTAssertNil(constraints.validDayRange(for: travel))
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}
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// MARK: - Barrier Games Tests
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func test_barrierGames_returnsDepartureAndArrivalGames() {
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// Given: Chicago games Days 1-2, Detroit games Days 4-5
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let chicagoGame1 = makeGameItem(city: "Chicago", day: 1, sortOrder: 100)
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let chicagoGame2 = makeGameItem(city: "Chicago", day: 2, sortOrder: 100)
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let detroitGame1 = makeGameItem(city: "Detroit", day: 4, sortOrder: 100)
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let detroitGame2 = makeGameItem(city: "Detroit", day: 5, sortOrder: 100)
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let constraints = makeConstraints(
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tripDays: 5,
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games: [chicagoGame1, chicagoGame2, detroitGame1, detroitGame2]
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)
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let travel = makeTravelItem(from: "Chicago", to: "Detroit", day: 3, sortOrder: 50)
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// When
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let barriers = constraints.barrierGames(for: travel)
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// Then: Returns the last Chicago game and first Detroit game
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XCTAssertEqual(barriers.count, 2)
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XCTAssertTrue(barriers.contains { $0.id == chicagoGame2.id })
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XCTAssertTrue(barriers.contains { $0.id == detroitGame1.id })
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}
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// MARK: - Helpers
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private let testTripId = UUID()
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private func makeConstraints(tripDays: Int, gameDays: [Int] = []) -> ItineraryConstraints {
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let games = gameDays.map { makeGameItem(city: "TestCity", day: $0) }
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return makeConstraints(tripDays: tripDays, games: games)
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}
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private func makeConstraints(tripDays: Int, games: [ItineraryItem]) -> ItineraryConstraints {
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return ItineraryConstraints(tripDayCount: tripDays, items: games)
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}
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private func makeGameItem(city: String, day: Int, sortOrder: Double = 100) -> ItineraryItem {
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// For tests, we use gameId to encode the city
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return ItineraryItem(
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tripId: testTripId,
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day: day,
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sortOrder: sortOrder,
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kind: .game(gameId: "game-\(city)-\(UUID().uuidString.prefix(4))")
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)
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}
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private func makeTravelItem(from: String, to: String, day: Int, sortOrder: Double) -> ItineraryItem {
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return ItineraryItem(
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tripId: testTripId,
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day: day,
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sortOrder: sortOrder,
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kind: .travel(TravelInfo(fromCity: from, toCity: to))
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)
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}
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private func makeCustomItem(day: Int, sortOrder: Double) -> ItineraryItem {
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return ItineraryItem(
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tripId: testTripId,
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day: day,
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sortOrder: sortOrder,
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kind: .custom(CustomInfo(title: "Test Item", icon: "star"))
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)
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}
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}
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