Run Tests

When to use this skill:

• After making code changes
• Before committing changes
• Verifying implementation quality
• CI/CD pipeline execution

What this skill does:

1. Detects which app was modified (api, web, or packages)
2. Runs unit tests with node:test for backend code
3. Runs integration tests with Testcontainers for backend E2E
4. Runs Playwright tests for frontend E2E
5. Reports coverage metrics
6. Suggests fixes for failures

Targeted Testing Only

IMPORTANT: NEVER run all tests at once. Only run tests for the affected app.

Test Commands by App

API (NestJS Backend):

# Unit tests with node:test
pnpm run test:api:unit
# Or from apps/api directory:
node --test src/**/*.test.ts
node --test --watch src/**/*.test.ts

# E2E tests with Testcontainers
pnpm run test:api:e2e
# Or:
nx e2e api

# All API tests
pnpm run test:api

Web (Next.js Frontend):

# E2E tests with Playwright
pnpm run test:web:e2e
# Or:
nx e2e web

# Playwright UI mode
pnpm run test:web:e2e:ui
# Or:
nx e2e web --ui

# All web tests
pnpm run test:web

Testing Workflow

1. Detect which app was modified:

   • Check git status or file paths
   • Determine if it's API, web, or a package

2. Run appropriate tests:

   • API changes: pnpm run test:api
   • Web changes: pnpm run test:web:e2e
   • Package changes: Run tests for apps that import the package

3. Fix failures:

   • Analyze error messages
   • Fix the issue
   • Re-run the specific test

Test Technologies

Layer	Technology
Backend Unit	node:test (built-in)
Backend E2E	Testcontainers (PostgreSQL, Redis)
Frontend E2E	Playwright

NO "Test All" Script

There is intentionally NO script that runs all tests. This ensures:

• Fast feedback (only run relevant tests)
• CI/CD efficiency (test affected apps only)
• Clear ownership (each app has its own tests)

Usage:

"Run tests for my API changes"
"Run tests for the web app"
"Verify the API tests pass"