---
phase: 04-review-download-security
plan: 03
subsystem: ui
tags: [react, vitest, testing-library, rclone, download, zip, clipboard]

# Dependency graph
requires:
  - phase: 04-review-download-security-02
    provides: OutputBlock component, downloadFile and downloadZip utilities
  - phase: 04-review-download-security-01
    provides: Wave 0 TDD stubs for ReviewStep, SECU-03 reducer test
  - phase: 02-generators
    provides: buildRcloneConf, buildIntuneInstall, buildIntuneDetection, buildRmmScript
  - phase: 01-foundation
    provides: WizardState, useWizard hook, WizardProvider context
provides:
  - ReviewStep component — composites all download, copy, preview, and security gate behaviors
  - All 10 requirement behaviors (CONF-02, CONF-03, DOWN-01–DOWN-06, SECU-01, SECU-02) tested GREEN
affects: [03-wizard-ui, App.tsx integration]

# Tech tracking
tech-stack:
  added: []
  patterns:
    - "useMemo with try/catch for generator calls — prevents crash on incomplete wizard state"
    - "Security acknowledgement checkbox as gate for all destructive/export actions"
    - "vi.stubGlobal after vi.clearAllMocks in beforeEach — ensures fresh clipboard mock per test"
    - "Native DOM .disabled/.checked instead of jest-dom matchers when jest-dom not installed"

key-files:
  created:
    - src/components/wizard/ReviewStep.tsx
  modified:
    - src/components/wizard/ReviewStep.test.tsx

key-decisions:
  - "Checkbox must be checked before testing clipboard/download clicks — disabled buttons don't fire onClick"
  - "vi.stubGlobal order matters: must come AFTER vi.clearAllMocks or cleared mocks break clipboard assertions"
  - "Use HTMLInputElement/HTMLButtonElement cast + .checked/.disabled properties — no jest-dom installed"
  - "Default export alongside named export for ReviewStep — test file uses default import"

patterns-established:
  - "Security gate pattern: useState(false) acknowledged + disabled={!acknowledged} on all action buttons"
  - "useMemo generator pattern: try { return generator(state) } catch { return placeholder } for resilient preview"

requirements-completed: [CONF-02, CONF-03, DOWN-01, DOWN-02, DOWN-03, DOWN-04, DOWN-05, DOWN-06, SECU-01, SECU-02]

# Metrics
duration: 4min
completed: 2026-03-27
---

# Phase 4 Plan 03: ReviewStep Implementation Summary

**ReviewStep composing live rclone.conf preview, security acknowledgement gate, 4 file download/copy blocks, and ZIP bundle — all 10 requirement behaviors tested GREEN**

## Performance

- **Duration:** 4 min
- **Started:** 2026-03-27T10:48:03Z
- **Completed:** 2026-03-27T10:52:00Z
- **Tasks:** 1
- **Files modified:** 2

## Accomplishments

- ReviewStep.tsx implemented with all 10 requirement behaviors (CONF-02, CONF-03, DOWN-01 through DOWN-06, SECU-01, SECU-02)
- All 10 Wave 0 `expect.fail` stubs replaced with real assertions, 10/10 tests GREEN
- Full test suite (98 tests, 12 files) passes with no regressions
- Security gate pattern: checkbox gates all download and copy actions via disabled prop
- useMemo try/catch pattern prevents crash when wizard state is incomplete (PLACEHOLDER shown)

## Task Commits

Each task was committed atomically:

1. **Task 1: Implement ReviewStep.tsx — full component turning all stubs GREEN** - `259fff6` (feat)

## Files Created/Modified

- `src/components/wizard/ReviewStep.tsx` — Step 3 component: live preview, security gate, 4 OutputBlocks, Download All ZIP button
- `src/components/wizard/ReviewStep.test.tsx` — Replaced all 10 `expect.fail` stubs with real assertions

## Decisions Made

- **Checkbox required before testing clipboard/download**: Disabled buttons don't fire onClick in jsdom — tests must click the security checkbox first before testing download/copy actions.
- **vi.stubGlobal after vi.clearAllMocks**: clearAllMocks would reset the clipboard mock if called after stubGlobal; order matters in beforeEach.
- **Native DOM properties instead of jest-dom**: Since `@testing-library/jest-dom` is not installed, used `(el as HTMLButtonElement).disabled` and `(el as HTMLInputElement).checked` for assertions.
- **Default export added**: Test file uses `import ReviewStep from './ReviewStep'` (default import) — added `export default ReviewStep` alongside the named export.

## Deviations from Plan

### Auto-fixed Issues

**1. [Rule 1 - Bug] vi.stubGlobal ordering fixed for clipboard mock reliability**
- **Found during:** Task 1 (TDD GREEN phase — first test run)
- **Issue:** `vi.clearAllMocks()` called AFTER `vi.stubGlobal` reset the clipboard mock, causing clipboard assertions to fail with "called 0 times"
- **Fix:** Reordered beforeEach to call `vi.clearAllMocks()` first, then `vi.stubGlobal` after
- **Files modified:** src/components/wizard/ReviewStep.test.tsx
- **Verification:** CONF-03 and DOWN-06 clipboard tests pass
- **Committed in:** 259fff6 (Task 1 commit)

**2. [Rule 1 - Bug] jest-dom matchers unavailable — switched to native DOM assertions**
- **Found during:** Task 1 (SECU-01 test)
- **Issue:** `toBeChecked()` and `toBeDisabled()` require `@testing-library/jest-dom` which is not installed
- **Fix:** Used native HTML element property checks: `.checked`, `.disabled` with TypeScript casts
- **Files modified:** src/components/wizard/ReviewStep.test.tsx
- **Verification:** SECU-01 test passes GREEN
- **Committed in:** 259fff6 (Task 1 commit)

**3. [Rule 1 - Bug] Security checkbox must be clicked before testing action buttons**
- **Found during:** Task 1 (CONF-03, DOWN-06 tests)
- **Issue:** Plan stubs didn't show that Copy buttons are disabled by default; fireEvent.click on a disabled button doesn't fire onClick in jsdom
- **Fix:** Added `fireEvent.click(checkbox)` at the start of CONF-03 and DOWN-06 tests to enable buttons before testing
- **Files modified:** src/components/wizard/ReviewStep.test.tsx
- **Verification:** All clipboard-related tests pass GREEN
- **Committed in:** 259fff6 (Task 1 commit)

---

**Total deviations:** 3 auto-fixed (3 bugs in test implementation)
**Impact on plan:** All fixes were corrections to test code to align with the component's actual behavior. No scope creep.

## Issues Encountered

None beyond the three auto-fixed test assertion issues above.

## Next Phase Readiness

- ReviewStep is complete and fully tested — ready for Phase 4 Plan 04 (wire ReviewStep into App.tsx as Step 3)
- All 10 requirement behaviors verified GREEN
- Full suite 98/98 tests passing

---
*Phase: 04-review-download-security*
*Completed: 2026-03-27*