xJetRun Automated Tests Anywhere, Effortlessly

A powerful, flexible testing framework for JavaScript and TypeScript applications with familiar Jest-like syntax and powerful mocking capabilities.

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Familiar API

Uses a Jest-like interface with describe, it, test, and expect functions, making it easy to adopt for teams familiar with Jest.

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Complete suite of mocking utilities including fn, mock, and spyOn for effective test isolation.

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First-class TypeScript support with full type definitions for maximum safety, autocomplete, and great IDE support.

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Support for different output formats including human-readable, JSON, and JUnit XML for CI/CD integration.

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Rich set of matchers for all common data types, designed for precise assertions and clear error messages.

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Simple configuration through command-line arguments and configuration files for maximum flexibility.