While tools like Jasmine, Karma, and Jest were always there when we needed them, it’s time to move on.
In this talk, we’ll revisit the battle scars they left behind — like the hours spent forcing things to just work with the tests — and explore how tools like Vitest aren’t just trendier. They’re the result of hard-earned lessons in speed, reliability, and developer experience.
You’ll leave with:

A sense of closure for the old stack.
A tour of the modern features Vitest brings to the table.
A migration path to Vitest.
Concrete patterns that future-proof your Angular tests.

Come for the nostalgia. Stay for the clarity.

Devoxx

A conference talk transcript covering migration from Jest/Jasmine/Karma to Vitest for Angular applications. Key topics include: progressive migration strategies using file naming conventions, the Analog plugin for flexible Vitest configuration, running tests in real browsers via Vitest browser mode with Playwright as the provider, using Angular Testing Library with polling instead of manual change detection, object mothers and fake implementations over spies/mocks, fake timers and the new fast-forward mode for debounce testing, and a preview of Testronaut — a new tool for mounting Angular components directly in Playwright.

Ashes to Ashes, Specs to Specs: A Farewell to Old Testing Tools by Younes Jaaidi