Mocha is a feature-rich JavaScript test framework that operates within Node.js userland, which refers to the ecosystem of user-created modules and libraries that run in the Node.js environment. It is designed to make asynchronous testing simple and fun, providing developers with the tools needed to write and run tests for both backend and frontend JavaScript applications.
Mocha supports a wide range of features that facilitate the testing process, including but not limited to:
Asynchronous testing, including support for promises and the ability to run tests in parallel, which is crucial for handling Node.js's non-blocking I/O operations[2].
A variety of built-in reporters and the ability to use any assertion library, which allows for flexible and customizable test reporting[2].
Before, after, and around hooks to set up preconditions and clean up after tests[2].
Exclusive and inclusive tests, which allow developers to run only specified tests or skip specified tests, making it easier to focus on specific areas during development[2].
Test retries and test-specific timeouts, which are useful fo...
