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Founded by passionate advocates of learning and innovation, Learni set out to make professional training accessible to everyone, everywhere in the world. Our team works in the largest cities such as Paris, Lyon, Marseille, and internationally, to support talents and organizations in their skills development.
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30 free minutes with a training advisor — no commitment.
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Professional Training training in Memphis in October 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Artificial Intelligence training in San Francisco in October 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Unlock top excellence scholarships with April 2026 deadlines. Learn eligibility, application steps, and strategies to boost your chances for fully funded studies abroad.
No-Code / Low-Code training in Leeds in November 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Don't let this gap widen
Without Vitest expertise, your Jest tests slow builds by 5x, 35% of production bugs escape low coverage, costing 5000€/incident in urgent hotfixes.
Teams lose 15h/week on slow suites, blocked deployments delay features by 2 weeks.
Competitors with Vitest deploy 10x faster, gaining market share.
Avoid hidden regressions, furious client downtimes, and wasted salaries on endless debugging.
Master Vitest, secure your code, and multiply productivity starting tomorrow.
The Vitest Expert Training - Ultra-Fast Unit Tests training is delivered in-person or remotely (blended-learning, e-learning, virtual classroom, remote in-person). At Learni, a Qualiopi-certified training organization, each program is designed to maximize skills acquisition, regardless of the training mode chosen.
The trainer alternates between demonstrative, interrogative, and active methods (through practical exercises and/or real-world scenarios). This pedagogical approach ensures concrete and directly applicable learning in the workplace.
To ensure the quality of the Vitest Expert Training - Ultra-Fast Unit Tests training, Learni provides the following teaching resources:
For in-house training at a location external to Learni, the client ensures and commits to having all necessary teaching materials (IT equipment, internet connection...) for the proper conduct of the training action in accordance with the prerequisites indicated in the communicated training program.
The assessment of skills acquired during the Vitest Expert Training - Ultra-Fast Unit Tests training is carried out through:
Learni is committed to the accessibility of its professional training programs. All our training programs are accessible to people with disabilities. Our teams are available to adapt teaching methods to your specific needs. Do not hesitate to contact us for any accommodation request.
Learni training programs are available for inter-company and intra-company settings, both in-person and remote. Registration is possible up to 48 business hours before the start of training. Our programs are eligible for OPCO, Pôle emploi, and FNE-Formation funding. Contact us to discuss your training project and funding possibilities.
Learn proven strategies to cultivate a thriving DevOps culture in your organization using targeted training programs designed for the evolving landscape of March 2026, including AI integration and advanced automation.
Software Development training in Louisville in January 2025 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Install and configure Vitest in a complex Vite project, create test suites with custom mocks for APIs and modules, optimize via watch mode, caching, and parallelism on 10+ workers, integrate with GitHub Actions for automated CI/CD, migrate a real Jest repo live, test React components with @vitejs/plugin-react, generate detailed coverage reports, all through practical exercises and portfolio-ready deliverables that boost your dev speed x5.
Target audience
Senior JavaScript/TypeScript developers, lead developers, software architects upskilling on Vite testing.
Prerequisites
Advanced proficiency in JavaScript/TypeScript, experience with Vite or bundlers, hands-on experience with unit testing via Jest/Mocha.
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