Younes Jaaidi

Younes Jaaidi is a Software Cook who enjoys whipping code until tests pass. Raised in the eXtreme Programming kitchen some 20 years, he now teaches and coaches teams — perhaps yours next — to cook better software using ingredients such as Test-Driven Development, Charted Coding, and Collective Ownership. He's also an Angular Google Developer Expert, an Nx Champion, and a mediocre sailor. His favorite spice: sleep 300 && git reset --hard

Software Cook | Marmicode, Francemarmicode.io yjaaidi yjaaidi yjaaidi younesjd.dev

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Ashes to Ashes, Spec to Spec: The Rebirth of Modern Testing

React Summit 2026

Upcoming

Ashes to Ashes, Spec to Spec: The Rebirth of Modern Testing

While tools like Jest, Jasmine, Karma, and Testing Library were always there when we needed them for testing our web apps, it's time to move on. In this talk, we'll revisit the battle scars they left behind, and explore how Vitest isn't just trendier — it's 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.
- Clarity on "Partial" vs. "Full" Browser Mode.
- The anatomy of a maintainable test: Fakes, Object Mothers, and patterns that future-proof your specs.
- A look at Testronaut — a testing companion that takes these patterns further.

Come for the nostalgia. Stay for the clarity. Leave ready to cook.

testing