Jest
What is Jest?
Jest is an open-source JavaScript testing framework developed by Meta (formerly Facebook), designed for testing the logic and behavior of JavaScript and TypeScript applications. It is particularly popular for testing React applications but works well with any modern JavaScript framework. Jest focuses on simplicity, performance testing, and ease of use, making it a widely adopted choice for unit testing, integration testing, and snapshot testing in frontend development.
Test automation with Jest is typically used in frontend QA processes for unit testing components, validating business logic, and ensuring UI consistency through snapshot testing. It integrates easily with modern frameworks like React, Vue, and Angular, and is commonly included in continuous integration pipelines.
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