coverage

Analyze Test Coverage Gaps

Map all testable surfaces in the application and identify what's tested vs. what's missing.

Steps

1. Map Application Surface

Use the Explore subagent to catalog:

Routes/Pages:

• Scan route definitions (Next.js app/, React Router config, Vue Router, etc.)

• List all user-facing pages with their paths

Components:

• Identify interactive components (forms, modals, dropdowns, tables)

• Note components with complex state logic

API Endpoints:

• Scan API route files or backend controllers

• List all endpoints with their methods

User Flows:

• Identify critical paths: auth, checkout, onboarding, core features

• Map multi-step workflows

2. Map Existing Tests

Scan all *.spec.ts / *.spec.js files:

• Extract which pages/routes are covered (by page.goto() calls)

• Extract which components are tested (by locator usage)

• Extract which API endpoints are mocked or hit

• Count tests per area

3. Generate Coverage Matrix

## Coverage Matrix

| Area | Route | Tests | Status |
|---|---|---|---|
| Auth | /login | 5 | ✅ Covered |
| Auth | /register | 0 | ❌ Missing |
| Auth | /forgot-password | 0 | ❌ Missing |
| Dashboard | /dashboard | 3 | ⚠️ Partial (no error states) |
| Settings | /settings | 0 | ❌ Missing |
| Checkout | /checkout | 8 | ✅ Covered |

4. Prioritize Gaps

Rank uncovered areas by business impact:

• Critical — auth, payment, core features → test first

• High — user-facing CRUD, search, navigation

• Medium — settings, preferences, edge cases

• Low — static pages, about, terms

5. Suggest Test Plan

For each gap, recommend:

• Number of tests needed

• Which template from templates/ to use

• Estimated effort (quick/medium/complex)

## Recommended Test Plan

### Priority 1: Critical
1. /register (4 tests) — use auth/registration template — quick
2. /forgot-password (3 tests) — use auth/password-reset template — quick

### Priority 2: High
3. /settings (4 tests) — use settings/ templates — medium
4. Dashboard error states (2 tests) — use dashboard/data-loading template — quick

6. Auto-Generate (Optional)

Ask user: "Generate tests for the top N gaps? [Yes/No/Pick specific]"

If yes, invoke /pw:generate for each gap with the recommended template.

Output

• Coverage matrix (table format)

• Coverage percentage estimate

• Prioritized gap list with effort estimates

• Option to auto-generate missing tests

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