Unit, integration, and load testing patterns with @expressots/core testing utilities.

• Testing feature guide

npm install
cp .env.example .env
npm run dev

Try the calculator endpoints:

curl "http://localhost:3000/api/calculator/add?a=2&b=3"
curl "http://localhost:3000/api/calculator/multiply?a=4&b=5"

npm test

This example includes:

• test/unit/calculator.spec.ts - pure unit tests for CalculatorService
• test/integration/api.spec.ts - HTTP integration tests with createTestApp
• test/load/smoke.spec.ts - concurrent request smoke test with loadTest