About the Vitest for Vue Developers: Testing in the Age of AI course
AI coding agents write Vue faster than you can review it. Automated tests are the feedback loop that keeps those agents honest. This course teaches Vue developers how to test full-stack apps with Vitest by cutting the app at the right seams, not by memorizing syntax.
What to Expect from the Course
You will not get another setup walkthrough or a tour of Vitest syntax. You will learn where to slice a Vue app so each layer is cheap to test: presentational vs container components, components vs composables, browser APIs, the network boundary, REST handlers, services, and the database, etc. Then you will use the Vitest tools that actually fit each layer: unit tests, browser-mode component tests, visual regression, MSW, API tests, and a thin layer of integration and E2E.
What You Will Learn
- Why automated testing matters even more when AI agents write the code
- Why Vitest is the natural test runner for Vite-based Vue apps, and which of its tools to reach for and when (unit, browser mode, visual regression, type assertions)
- How units, seams, and contracts make Vue apps testable (and how tangled components make them a nightmare)
- How to split presentational and container components so UI states can be tested without hitting the network
- How to extract composables and test logic without mounting the DOM
- How to run component tests in a real browser with Vitest browser mode
- How visual regression testing catches layout and CSS drift that behavioral assertions miss
- How to mock the network with MSW so frontend tests cover loading, error, and empty states on demand
- How and what to test in REST API handlers (validation, status codes, response shape, not a dump of business logic)
- How to test backend services and data access at the right boundary
- How to write a thin, high-value layer of integration and E2E tests (including pages behind an auth wall)
- How to wire tests into an AI agent’s loop and how to review agent-written tests
Who this course is for
Vue developers who already know how to unit-test a pure function and now need a strategy for everything else: components, composables, APIs, databases, and AI-generated code. If you work with Vue 3, Vite, and Vitest, and especially if agents are writing more of your diffs, this course is for you.
By the End of the Course
You will know where to cut, which tests catch the most likely failure cheapest, and how to turn that suite into the harness that lets AI agents move fast without eroding the codebase.
You will receive a notification to your email when a new lesson is published.
