---
phase: 02-e2e-test-infrastructure
plan: 02
subsystem: testing
tags: [pytest, fixtures, assertions, e2e, harness-validation]

# Dependency graph
requires:
  - phase: 02-01
    provides: CommandResult, run_git, run_gitsl, fixtures, comparison utilities
provides:
  - Self-validation tests for all harness components
  - Verified test infrastructure ready for gitsl testing
affects: [02-03, all future test phases]

# Tech tracking
tech-stack:
  added: []
  patterns: [test class organization by component, fixture validation tests]

key-files:
  created:
    - tests/test_harness.py
  modified: []

key-decisions:
  - "Use Path.resolve() for temp dir comparison on macOS"

patterns-established:
  - "Test class per harness component (TestCommandResult, TestRunGit, etc.)"
  - "Validate fixtures before using them to test gitsl"

# Metrics
duration: 2min
completed: 2026-01-18
---

# Phase 02 Plan 02: Harness Self-Validation Summary

**35 comprehensive tests validating CommandResult, run_git, run_gitsl, 4 git repo fixtures, and comparison utilities**

## Performance

- **Duration:** 2 min
- **Started:** 2026-01-18T00:32:34Z
- **Completed:** 2026-01-18T00:34:42Z
- **Tasks:** 2
- **Files modified:** 1

## Accomplishments
- 35 test functions covering all 10 harness components
- 10 test classes organized by component
- All tests passing, validating harness is ready for gitsl testing

## Task Commits

Each task was committed atomically:

1. **Task 1: Create harness self-validation tests** - `ac914a8` (test)
2. **Task 2: Verify all tests pass** - `e3900ac` (fix)

**Plan metadata:** (to be committed after this summary)

## Files Created/Modified
- `tests/test_harness.py` - 297 lines, 35 tests across 10 classes validating all harness components

## Decisions Made
- **Path.resolve() for symlink handling:** Used Path.resolve() when comparing git_repo path against temp directory to handle macOS /var -> /private/var symlink.

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 1 - Bug] Fixed temp dir comparison on macOS**
- **Found during:** Task 2 (test verification)
- **Issue:** test_is_temporary failed because macOS /var is symlinked to /private/var
- **Fix:** Use Path.resolve() for both git_repo and tempfile.gettempdir() to resolve symlinks
- **Files modified:** tests/test_harness.py
- **Verification:** All 35 tests pass
- **Committed in:** e3900ac (Task 2 commit)

---

**Total deviations:** 1 auto-fixed (1 bug)
**Impact on plan:** Single platform compatibility fix. No scope creep.

## Issues Encountered
None beyond the macOS symlink issue documented above.

## User Setup Required

None - no external service configuration required.

## Next Phase Readiness
- Test harness fully validated with 35 passing tests
- Fixtures confirmed working for all common git repo states
- Comparison utilities verified for both exact and semantic modes
- Ready for command-specific E2E tests in future phases

---
*Phase: 02-e2e-test-infrastructure*
*Completed: 2026-01-18*
