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@nx/jest

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The Nx Plugin for Jest contains executors and generators allowing your workspace to use the powerful Jest testing capabilities.

nx.dev

nrwl/nx

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import { Tree } from '@nx/devkit'; /** * Migration to convert jest.config.ts files from ESM to CJS syntax for projects * using CommonJS resolution. This is needed because Node.js type-stripping * in newer versions (22+, 24+) can cause issues with ESM syntax in .ts files * when the project is configured for CommonJS. * * Conversions: * - `export default { ... }` -> `module.exports = { ... }` * - `import { x } from 'y'` -> `const { x } = require('y')` * - `import x from 'y'` -> `const x = require('y').default ?? require('y')` * * ESM-only features that cannot be converted (will warn user): * - `import.meta` * - top-level `await` * * Projects with `type: module` in package.json are skipped and warned about, * as they use ESM semantics and don't need the CJS conversion. */ export default function convertJestConfigToCjs(tree: Tree): Promise<() => void>;