Version Details and Security Vulnerabilities

Jest Mock Process simplifies mocking NodeJS process properties within Jest tests, offering a streamlined approach to isolate your code and ensure predictable test outcomes. Version 2.0.0 builds upon the solid foundation of its predecessor, 1.5.1, with a subtle but important change in its peer dependency on Jest. While both versions support Jest versions 23.4 and above, version 1.5.1 explicitly limits support to Jest versions below 29 (jest: ">=23.4 <29"). Version 2.0.0 removes this upper bound (jest: ">=23.4"), making it compatible with Jest 29 and any potentially later versions.

Choosing between these versions hinges primarily on your project's Jest dependency. If you're using Jest 28 or earlier, version 1.5.1 is a suitable option. However, if you've upgraded to Jest 29 or intend to do so, version 2.0.0 is the recommended choice to ensure compatibility and avoid potential dependency conflicts. Both versions share identical development dependencies, including TypeScript, ts-jest, and type definitions, reflecting that the core mocking functionality remains consistent. Users can continue to expect a smooth experience mocking environmental variables and process states. The primary value proposition remains easy mocking to control test results, with consistent typing and overall developer experience, making either a solid choice when the Jest version is factored in.