Automated Testing That Works: Unit, Integration, and Endto-End (Paperback) (ISBN-13: 9798290202266)

Confident Code Starts with Tests That Deliver

Tired of brittle tests? Tired of bugs slipping through? Automated Testing That Works teaches you how to build a rock-solid test suite that's easy to maintain, catches real problems, and empowers continuous delivery.

Whether you're a junior developer or a seasoned engineer, this practical guide walks you through the entire automated testing stack-from unit tests to integration to full end-to-end coverage-so you can build software that ships with confidence.

You won't just write tests. You'll learn how to test smart.

• Core principles of automated testing (fast, reliable, isolated)

• Writing unit tests that catch logic errors early

• Creating integration tests that simulate real-world scenarios

• End-to-end tests that validate the full user journey

• Mocking, stubbing, and controlling side effects

• Testing asynchronous flows, APIs, and databases

• When (and when not) to test

• Choosing the right tools: Jest, Mocha, JUnit, Cypress, Selenium, etc.

• Designing a scalable test architecture for real-world teams

• Integrating tests into CI/CD pipelines

From frontend to backend, from local dev to production-you'll gain the skills to test every layer of your stack without wasting time on fragile or flaky code.

Write less. Catch more. Ship faster.