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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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The Training Mastering Testing Library for Effective Reactive Interface 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 Mastering Testing Library for Effective Reactive Interface 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 Mastering Testing Library for Effective Reactive Interface Tests training is carried out through:
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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.
Presentation of Testing Library: history, user-oriented philosophy, differences with Enzyme and other frameworks. Installation and configuration for React, Vue, Angular. Frontend test project structure. First tests: expectations based on real user behavior. Getting started with selectors: getBy, queryBy, findBy.
Simulate interactions: clicks, input, navigation. Using user-event vs fireEvent. Organizing tests: setup, teardown, DOM cleanup. Asynchronous tests, handling conditional rendering. Techniques to avoid false positives and negatives. Maintaining readable and robust tests. Refactoring and factoring test code.
Testing complex components and entire applications: contexts, custom hooks, global providers. API mocking and managing external dependencies. Strategy for optimal coverage. Integration into CI/CD pipelines (GitHub Actions, GitLab CI...). Optimizing test suite performance. Bug analysis, error handling and effective debugging. Best practices for long-term test suite maintenance.
Target audience
Front-end developers, integrators, QA teams, anyone wishing to professionalize the testing of modern web interfaces
Prerequisites
Good knowledge of JavaScript and front-end frameworks like React, Vue or Angular
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