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Training Vitest - Mastering Advanced Tests for Robust Code

Ref: ZXE748
10 people max.
5500€ HT / per person
−15% from 2 people−30% from 3 people−50% from 5 people
Pay in 3 installments · +$170/day onsite · +$500 with certification exam
5 journées
distanciel

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Learning objectives

  • Master advanced Vitest configurations for complex professional environments
  • Develop high-performance test suites integrating coverage and advanced mocking
  • Design parallel and snapshot tests to accelerate enterprise CI/CD cycles
  • Optimize Vitest performance in scalable and certifying projects
  • Implement end-to-end testing strategies with Vitest for professional code quality
  • Deploy Vitest in teams with certifying skills for effective training

The Learni story

Founded by passionate learning and innovation experts, Learni's mission is to make professional training accessible to everyone, anywhere in the world. Our team operates in major hubs — London, New York, Boston — and internationally, to support talents and organizations in upskilling.

Don't let this gap widen

Why this program matters

  • Without this upskilling, your team accumulates a technological gap that translates directly into productivity loss.

  • Organizations that don't train their talents on key topics see their competitiveness drop.

  • Every quarter without training is a gap widening with competitors who invest.

  • The cost of inaction quickly exceeds that of well-targeted training.

Allan Busi
Allan Busi

Learni Trainer · Expert

73%productivity gap
×3cost of inaction

Program

Module 1Vitest Configuration: Advanced Setup and Vite Integration (tools, plugins, benchmarks)

Discover advanced Vitest configurations tailored to professional projects, install essential plugins like @vitest/ui and vitest-snapshot, set up watch mode for rapid iterations, complete practical exercises on a real project with coverage thresholds, generate detailed HTML reports, and validate your setups via performance benchmarks for immediate certifying training.

Module 2Vitest Unit Tests: Deep Mocking and Spies (methods, fixtures, assertions)

Dive into advanced Vitest mocking with vi.mock and vi.spy, simulate complex APIs and external modules, implement custom fixtures for reusability, test React hooks with @testing-library, analyze memory leaks via precise assertions, practice on concrete business cases, and produce testable deliverables to strengthen your professional skills in robust testing.

Module 3Vitest Parallel Tests: CI/CD Optimization (pools, sharding, GitHub Actions)

Optimize Vitest parallel executions by configuring pools and sharding to scale on 10+ cores, integrate with GitHub Actions and Jenkins for fast pipelines, measure build time impact via vitest --reporter, develop automated retry scripts, apply to real monorepos in practical exercises, generate test artifacts for audits, and acquire certifying skills in DevOps testing.

Module 4Vitest Snapshots and Coverage: Advanced Code Quality (thresholds, mutations, tools)

Master Vitest snapshots to validate UI and dynamic data, configure coverage with Istanbul for 90%+ thresholds, integrate Stryker for mutation testing, analyze coverage gaps on legacy code, practice test-driven refactoring, export reports to SonarQube, and create custom dashboards, while developing professional skills for secure and performant enterprise projects.

Module 5E2E Tests and Vitest Deployment: Enterprise Scalability (Playwright, production-ready)

Integrate Vitest with Playwright for seamless end-to-end tests, deploy in production mode with Docker and Kubernetes, automate baselines for distributed teams, measure ROI via flakiness metrics <1%, review a complete capstone project in pairs, produce a certifying portfolio with source code and reports, and consolidate your skills for immediate enterprise adoption.

Evaluation method

  • Daily interactive quizzes on advanced Vitest concepts
  • Final practical project with pair-programming review
  • Qualiopi certification attesting mastery of testing skills

Learning method

  • 70% hands-on practice on real projects and exercises
  • 20% applied theory with live demos and business cases
  • 10% personalized feedback for individual progress
  • Post-training resources: Git repo and replay videos

Methods, materials and delivery

The Training Vitest - Mastering Advanced Tests for Robust Code program is delivered onsite or remote (blended-learning, e-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.

The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.

Equipment required

For the smooth delivery of the Training Vitest - Mastering Advanced Tests for Robust Code program, the following equipment is required:

  • Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
  • Training environments installed on workstations or accessible online
  • Course materials, hands-on exercises and complementary resources
  • Post-training access to materials and educational resources

For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.

* contact us for remote delivery feasibility** ratio varies depending on the program

Skills assessment methods

Assessment of skills acquired during the Training Vitest - Mastering Advanced Tests for Robust Code program is performed through:

  • During training: case studies, hands-on labs and professional scenarios
  • End of training: self-assessment questionnaire and skills evaluation by the trainer
  • After training: completion certificate detailing acquired skills

Program accessibility

Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.

Enrollment terms and lead times

Learni programs are available inter-company and intra-company, onsite or remote. Enrollments are possible up to 48 business hours before the program starts. Our programs are eligible for corporate funding paths. Contact us to discuss your training project and funding options.

Verified reviews

What our learners

4.9 · +100 verified reviews
★★★★★

« cool, j'ai appris des trucs »

TomFormation AWS — Cloud Practitioner
★★★★★

« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »

Eva CarpentierFormation LLM en Entreprise — Claude, ChatGPT, Mistral
★★★★★

« la formation dev etait intense mais grave bien. merci Anthony Khelil »

NolanDWWM - Développeur Web et Web Mobile
★★★★★

« 😊👍 »

AmbreDWWM - Développement Web & Mobile React
★★★★★

« bien 👍 »

Léo BlanchardFormation AWS — DevOps Engineer Professional
★★★★★

« Allan Busi t'es au top, continue comme ça. formation géniale »

MargotFormation Claude & ChatGPT — Comparatif et Cas d'Usage
★★★★★

« cool, j'ai appris des trucs »

TomFormation AWS — Cloud Practitioner
★★★★★

« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »

Eva CarpentierFormation LLM en Entreprise — Claude, ChatGPT, Mistral
★★★★★

« la formation dev etait intense mais grave bien. merci Anthony Khelil »

NolanDWWM - Développeur Web et Web Mobile
★★★★★

« 😊👍 »

AmbreDWWM - Développement Web & Mobile React
★★★★★

« bien 👍 »

Léo BlanchardFormation AWS — DevOps Engineer Professional
★★★★★

« Allan Busi t'es au top, continue comme ça. formation géniale »

MargotFormation Claude & ChatGPT — Comparatif et Cas d'Usage
★★★★★

« cool, j'ai appris des trucs »

TomFormation AWS — Cloud Practitioner
★★★★★

« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »

Eva CarpentierFormation LLM en Entreprise — Claude, ChatGPT, Mistral
★★★★★

« la formation dev etait intense mais grave bien. merci Anthony Khelil »

NolanDWWM - Développeur Web et Web Mobile
★★★★★

« 😊👍 »

AmbreDWWM - Développement Web & Mobile React
★★★★★

« bien 👍 »

Léo BlanchardFormation AWS — DevOps Engineer Professional
★★★★★

« Allan Busi t'es au top, continue comme ça. formation géniale »

MargotFormation Claude & ChatGPT — Comparatif et Cas d'Usage
Read all reviews
Our method

Training quality, guaranteed at every step

Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.

Step 1

Rigorous trainer selection

Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.

  • Triple validation: technical, pedagogical, sectoral.
  • Minimum rating 4.8/5 over the last 12 sessions.
Step 2

You meet the trainer beforehand

30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.

  • Live briefing on goals and team context.
  • Veto right — we swap the trainer for free if needed.
Step 3

Content tailored to your context

No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.

  • Hands-on cases drawn from your stack and projects.
  • Program co-written then validated by your team.
Step 4

Continuous quality follow-up

Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.

  • NPS, knowledge quizzes and skills self-assessment.
  • Satisfaction guarantee: fully satisfied or free rework.

A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

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