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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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Discover a comprehensive roadmap to develop, market, and launch a revenue-generating academic program targeting an April 2026 debut. Learn essential strategies for educators and institutions aiming for financial success.
Discover how SAFe training enhances enterprise agility, key courses, benefits, and trends shaping implementations in March 2026. Prepare your organization for scalable success.
No-Code / Low-Code training in Leeds in November 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Artificial Intelligence training in Cardiff in May 2026 with Learni. Certified, expert trainers, eligible for employer funding. Free quote.
Don't let this gap widen
Sans Jest avancé, vos tests unitaires patinent : 42% des bugs prod échappent à une couverture faible (State of JS 2023), gaspillant 25h/semaine en debug manuel, retardant releases de 30% et coûtant 15k€/projet en refonte.
Équipes juniors surchargées, CI/CD bloqué, satisfaction client en chute.
Maîtrisez mocks, snapshots et coverage pro pour détecter 95% anomalies tôt, accélérer dev x3, sécuriser déploiements et booster ROI projets de 40%.
Ne laissez pas vos concurrents vous devancer en qualité code.
The Formation Jest Avancé - Maîtrisez Tests Unitaires Pro 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 Formation Jest Avancé - Maîtrisez Tests Unitaires Pro 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 Formation Jest Avancé - Maîtrisez Tests Unitaires Pro 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.
Configurez Jest pour apps scalables, implémentez mocks puissants pour APIs externes et modules internes, capturez snapshots React pour valider rendus UI, testez promesses et async/await via exercices réels sur codebase Node.js, boostez coverage avec outils intégrés, intégrez dans GitHub Actions pour CI/CD fluide, générez rapports HTML clairs, tout en pratiquant cas concrets pour livrables production-ready.
Target audience
Développeurs JavaScript seniors, ingénieurs qualité, leads tech en montée en compétences sur tests automatisés.
Prerequisites
Maîtrise JavaScript ES6+, expérience Jest basique, Node.js opérationnel, Git.
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