Martin·4d agoThe Same 400 Tests Ran 4x Faster Without Jest. Zero DependenciesNode.js has a test runner built in, with mocks, fake timers and coverage. The same suite on it, Jest 30 and Vitest 5
InDoctolibbyBruno Bodian·Oct 26From npm to pnpm: making frontend CI faster at DoctolibHow we treated a platform migration like a product feature, improving dependency setup and cutting Jest compute per PR by 43% at Doctolib.A response icon1A response icon1
Synfinity Dynamics·Oct 19Is Jest Still Worth Learning in 2026?Every few months, a new thread asks the same thing: “Is Jest dead?” With Vitest getting so much attention, it’s a fair worry if you’re…
Sergey Nikitin·Oct 8We migrated 70,000 tests from Jest to Vitest. Yes, in 2 monthsWe migrated Miro’s frontend monorepo to Vitest in 2 months with AI agents, achieving 50% faster runs and 30% less memory usageA response icon1A response icon1
InCode Your Own PathbyAleksei Aleinikov·Sep 18Jest to Vitest Migration: What Actually BreaksSwap jest for vi and most of a Jest suite runs on Vitest untouched. The problems are not the calls that throw — they are the ones that keep…
Ali Kamalizade·Sep 5How to Improve Jest Speed to Get Faster TestsTests exist to speed up development, not to slow us down
InJavaScript in Plain EnglishbyShubham Sanjaykumar patil·Sep 4Setting Up a Production React Stack, Package by Package: Tailwind, Redux Toolkit, React Router, and…We will set up a React application properly so that it can be delivered to real users. Not just the npm create vite and start coding part…A response icon1A response icon1
Renatta de Carvalho·Sep 3🧪 Testes unitários no Controller: o que muda depois de testar o Service?Se você já criou testes para a camada de Service, boa parte da estrutura será familiar. Continuaremos usando Jest, describe, it, expect e…
Özgür Deniz Türker·Sep 1Cutting Jest Integration Test Times in HalfWhy adding Jest workers failed on GitHub Actions, and how test sharding solved the problem.
