---
phase: 02-constraint-validation
plan: 01
subsystem: testing
tags: [swift-testing, xctest-migration, constraint-validation, itinerary]

# Dependency graph
requires:
  - phase: 01-semantic-position
    provides: SortOrderProvider, ItineraryItem model, semantic position foundation
provides:
  - Migrated ItineraryConstraints tests using Swift Testing (@Test/@Suite)
  - Comprehensive test coverage for CONS-01 through CONS-04
  - Edge case tests for boundary conditions
affects: [02-constraint-validation, testing-patterns]

# Tech tracking
tech-stack:
  added: []
  patterns:
    - Swift Testing @Suite/@Test pattern for domain tests
    - #expect assertions replacing XCTAssert macros

key-files:
  created: []
  modified:
    - SportsTimeTests/Domain/ItineraryConstraintsTests.swift

key-decisions:
  - "Migrated 13 XCTest tests to Swift Testing matching Phase 1 patterns"
  - "Added 9 additional edge case and success criteria tests during migration"

patterns-established:
  - "Constraint tests use MARK comments to organize by requirement (CONS-01 through CONS-04)"
  - "Edge case tests cover boundary conditions (day 0, day beyond trip, exact sortOrder boundaries)"

# Metrics
duration: 12min
completed: 2026-01-18
---

# Phase 2 Plan 1: Migrate Constraint Tests Summary

**Migrated 13 XCTest constraint tests to Swift Testing and expanded coverage to 22 tests including edge cases and success criteria verification**

## Performance

- **Duration:** 12 min
- **Started:** 2026-01-18T20:48:00Z
- **Completed:** 2026-01-18T21:00:00Z
- **Tasks:** 3
- **Files modified:** 2

## Accomplishments
- Migrated all 13 original XCTest constraint tests to Swift Testing
- Added 9 new edge case tests covering boundary conditions
- Verified all CONS-01 through CONS-04 requirements have test coverage
- Standardized test organization with MARK comments by requirement

## Task Commits

Each task was committed atomically:

1. **Task 2: Migrate tests to Swift Testing** - `1320a34` (test)
2. **Task 3: Delete old XCTest file** - `18a1736` (test)

_Note: Task 1 was verification only (no commit needed)_

## Files Created/Modified
- `SportsTimeTests/Domain/ItineraryConstraintsTests.swift` - Migrated Swift Testing version with 22 tests
- `SportsTimeTests/ItineraryConstraintsTests.swift` - Deleted (old XCTest version)

## Decisions Made
- Followed Phase 1 Swift Testing patterns (@Suite, @Test, #expect)
- Organized tests by requirement using MARK comments
- Added comprehensive edge case coverage during migration

## Deviations from Plan

### Auto-enhanced Coverage

**1. Additional edge case tests added during migration**
- **Found during:** Task 2 (migration)
- **Issue:** Original 13 tests covered requirements but lacked edge case coverage
- **Enhancement:** Added 9 tests covering:
  - Single-day trip validation
  - Day 0 and day-beyond-trip rejection
  - Exact sortOrder boundary behavior
  - Travel with no games in either city
  - Negative and very large sortOrder values
  - Success criteria verification tests
- **Files modified:** SportsTimeTests/Domain/ItineraryConstraintsTests.swift
- **Verification:** All 22 tests pass

---

**Total deviations:** 1 enhancement (additional test coverage)
**Impact on plan:** Positive - more comprehensive test coverage than originally planned

## Issues Encountered
None - migration proceeded smoothly.

## User Setup Required
None - no external service configuration required.

## Next Phase Readiness
- All constraint tests now use Swift Testing
- Ready for Plan 02 (edge case documentation and API documentation)
- CONS-01 through CONS-04 requirements fully tested

---
*Phase: 02-constraint-validation*
*Completed: 2026-01-18*