---
phase: 08-e2e-scenario-tests
plan: 02
subsystem: testing
tags: [vitest, e2e, edge-cases, crash-handling, merge-conflicts]

# Dependency graph
requires:
  - phase: 07-02
    provides: TestHarness, MockAgentManager, MockWorktreeManager, fixtures
provides:
  - E2E tests for agent crash scenarios
  - E2E tests for agent waiting/resume flow
  - E2E tests for task blocking
  - E2E tests for merge conflict handling
affects: [09-extended-scenarios]

# Tech tracking
tech-stack:
  added: []
  patterns:
    - setAgentScenario before dispatch for deterministic behavior
    - agentRepository seeding for coordination tests

key-files:
  created:
    - src/test/e2e/edge-cases.test.ts
    - src/test/e2e/index.ts
  modified: []

key-decisions:
  - "Agent crash tests verify task stays in_progress (not completed)"
  - "Merge conflict tests require manual agentRepository seeding"
  - "MockWorktreeManager setMergeResult for conflict scenarios"

patterns-established:
  - "Pre-seed idle agent before dispatchNext for DispatchManager requirements"
  - "Use vi.useFakeTimers() + vi.runAllTimersAsync() for async agent completion"

# Metrics
duration: 3 min
completed: 2026-01-31
---

# Phase 8 Plan 02: Edge Case E2E Tests Summary

**E2E tests proving agent crash recovery, waiting/resume flow, task blocking, and merge conflict handling work correctly with proper event emission**

## Performance

- **Duration:** 3 min
- **Started:** 2026-01-31T09:12:00Z
- **Completed:** 2026-01-31T09:15:00Z
- **Tasks:** 3
- **Files modified:** 2

## Accomplishments

- 14 edge case E2E tests covering crash, waiting, blocking, and conflict scenarios
- Agent crash tests proving spawned->crashed events and task status retention
- Agent waiting/resume tests proving question surfacing and successful completion after resume
- Task blocking tests proving blocked tasks not dispatchable
- Merge conflict tests proving conflict detection, event emission, and resolution task creation

## Task Commits

Each task was committed atomically:

1. **Task 1: Create E2E edge case tests (crash, waiting, blocking)** - `e0d8fc8` (test)
2. **Task 2: Add merge conflict scenario tests** - `ebeb538` (test)
3. **Task 3: Add test module index export** - `ac08128` (docs)

## Files Created/Modified

- `src/test/e2e/edge-cases.test.ts` - 14 tests for crash, waiting, blocking, conflict scenarios
- `src/test/e2e/index.ts` - Module documentation and empty export

## Decisions Made

- **Agent crash tests verify task stays in_progress:** After crash, task status should NOT be completed. Tests verify task remains in_progress state.
- **Merge conflict tests require manual agentRepository seeding:** CoordinationManager.queueMerge looks up agent by taskId. Since MockAgentManager doesn't persist to agentRepository, tests manually create agent records.
- **MockWorktreeManager setMergeResult for conflict scenarios:** Use worktreeManager.setMergeResult() to configure specific merge failure with conflict files.

## Deviations from Plan

None - plan executed exactly as written.

## Issues Encountered

None

## User Setup Required

None - no external service configuration required.

## Next Phase Readiness

- All 20 E2E tests pass (6 happy path + 14 edge cases)
- Test patterns established for Phase 9 extended scenarios
- No flaky tests (verified with double run)

---
*Phase: 08-e2e-scenario-tests*
*Completed: 2026-01-31*
