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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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Don't let this gap widen
Without advanced Jest expertise, 40% of bugs escape basic tests, according to State of JS reports, causing costly outages and release delays up to 2 weeks.
Manual debugging eats 30h/week per dev, inflating maintenance budgets by 25%.
CI/CD pipelines slowed by slow tests multiply cloud costs x3.
Low coverage exposes apps to security flaws, impacting 70% of breaches per OWASP.
Miss promotions due to low productivity, competitors overtake you.
In 7h, avoid these pitfalls, gain 50% testing efficiency, secure your expert dev career.
The Training Jest Expert - Mastering Advanced JS 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 Training Jest Expert - Mastering Advanced JS 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 Training Jest Expert - Mastering Advanced JS 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.
Dive into advanced mocks to simulate complex APIs, practice smart snapshots on real React components, analyze and boost your code coverage using built-in tools, integrate Jest with GitHub Actions for smooth CI/CD, debug massive suites in parallel during hands-on exercises, produce production-ready automated PDF reports, transform your tests into an irresistible competitive advantage.
Target audience
Lead JavaScript developers, software architects, QA managers upskilling on advanced testing.
Prerequisites
Mastery of JavaScript ES6+, intermediate Jest experience, advanced Node.js and npm/yarn.
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