Write unit test using Jest

In this lesson, we’ll explore the fundamentals of writing unit tests for NestJS applications using the Jest testing framework. Jest is a popular testing framework that provides a robust, developer-friendly environment for creating and executing tests.

Jest overview

Jest is a widely adopted JavaScript testing framework that stands out for its simplicity, speed, and developer-friendly features. Developed by Meta, Jest is designed to facilitate the testing of JavaScript applications, making it an excellent choice for various projects, including NestJS applications.

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