---
phase: 12-phase-task-decomposition
plan: 07
subsystem: testing
tags: [vitest, unit-test, mock-manager, plan-repository, decompose-mode]

# Dependency graph
requires:
  - phase: 12-phase-task-decomposition
    plan: 01
    provides: TaskBreakdown schema and decompose_complete status
  - phase: 12-phase-task-decomposition
    plan: 02
    provides: PlanRepository.getNextNumber
  - phase: 12-phase-task-decomposition
    plan: 03
    provides: MockAgentManager decompose_complete handling
provides:
  - Unit tests for MockAgentManager decompose mode
  - Unit tests for PlanRepository getNextNumber
affects: [12-08]

# Tech tracking
tech-stack:
  added: []
  patterns:
    - Decompose mode scenario testing with mock agents
    - Repository query method testing for getNextNumber

key-files:
  created: []
  modified:
    - src/agent/mock-manager.test.ts
    - src/db/repositories/drizzle/plan.test.ts

key-decisions: []

# Metrics
duration: 3min
completed: 2026-02-01
---

# Phase 12 Plan 07: Unit Tests for Decompose Mode & PlanRepository Summary

**Added unit tests for MockAgentManager decompose mode and PlanRepository getNextNumber method**

## Performance

- **Duration:** 3 min
- **Started:** 2026-02-01T11:53:00Z
- **Completed:** 2026-02-01T11:56:00Z
- **Tasks:** 2
- **Files modified:** 2

## Accomplishments

- Added MockAgentManager tests for decompose mode (spawn, complete, questions)
- Added tests verifying stopped event reasons for decompose_complete
- Added tests for result message with task count
- Added PlanRepository getNextNumber tests including edge cases

## Task Commits

Each task was committed atomically:

1. **Task 1: Add MockAgentManager decompose mode tests** - `a79b153` (test)
2. **Task 2: Add PlanRepository getNextNumber tests** - `a615303` (test)

## Files Modified

- `src/agent/mock-manager.test.ts` - Added 'decompose mode' describe block with 5 tests
- `src/db/repositories/drizzle/plan.test.ts` - Added 'getNextNumber' describe block with 3 tests

## Test Coverage Added

| File | Tests Added | Total Tests |
|------|-------------|-------------|
| mock-manager.test.ts | 5 | 44 |
| plan.test.ts | 3 | 13 |

## Decisions Made

None - plan executed exactly as specified.

## Deviations from Plan

### Adjustments

**1. PlanRepository findByPhaseId tests already existed**
- Plan specified adding findByPhaseId tests, but these were already implemented in plan.test.ts
- Only getNextNumber tests were needed

**Total deviations:** 1 (minor scope adjustment)
**Impact on plan:** Positive - avoided duplication

## Issues Encountered

None

## User Setup Required

None - no external service configuration required.

## Next Phase Readiness

- All decompose mode tests in place for E2E testing in 12-08
- PlanRepository methods fully tested
- Test count: 410 passing

---
*Phase: 12-phase-task-decomposition*
*Completed: 2026-02-01*
