JavaScript & Node.js testing best practices

Table of contents Section 0: The Golden Rule Single advice that inspires all the others (1 special bullet) Section 1: The Test Anatomy The foundation - structuring clean tests (12 bullets) Section 2: Backend Writing backend and Microservices tests efficiently (8 bullets) Section 3: Frontend, UI, E2E Writing tests for web UI including component and E2E tests (11 bullets) Section 4: Measuring Tests Effectiveness Watching the watchman - measuring test quality (4 bullets) Section 5: Continous Integration Guidelines for CI in the JS world (9 bullets)