Jest Practice

A collection of small test examples I wrote while learning Jest — covering matchers, mock functions, async testing, setup/teardown, and more.

Purpose

This repository is a sandbox for learning and experimenting with Jest.
It contains examples of:

• Writing simple unit tests

• Using different Jest matchers

• Working with mock functions

• Handling asynchronous code in tests

• Using setup and teardown methods (beforeEach, afterEach, etc.)

• Topics Covered

• Basic matchers (toBe, toEqual, toContain, etc.)

• Mock functions and spies

• Async code testing (async/await, .resolves / .rejects)

• Setup and teardown hooks

• Testing exceptions