@swc/jest

To make your Jest tests run faster, you can swap out the default JavaScript-based runner (ts-jest) for a drop-in Rust replacement using SWC.

Installation

# if you use npm
npm i -D jest @swc/core @swc/jest

# if you use yarn
yarn add -D jest @swc/core @swc/jest

Inside jest.config.js, configure Jest to use SWC:

module.exports = {
  transform: {
    "^.+\\.(t|j)sx?$": ["@swc/jest"],
  },
};

Last updated on June 22, 2022

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