Jest

Delightful JavaScript testing with speed, coverage, and simplicity built-in.

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Why Jest?

Zero Config

Works out of the box with Babel, TypeScript, and most frontend frameworks.

Snapshot Testing

Capture component output and detect unintended changes with snapshots.

Built-in Mocking

Mock modules, timers, and functions without external dependencies.

Code Coverage

Integrated Istanbul support for detailed coverage reports.

Multi-Project Runner

Easily manage tests for monorepos or large-scale apps with multiple configs.

Where Jest Shines

React App Testing
Snapshot Regression Checks
Mock-Heavy Testing
CI/CD Friendly
TypeScript Projects
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