nextra

jest.config.js

const nextJest = require('next/jest')

const createJestConfig = nextJest({
  // Provide the path to your Next.js app to load next.config.js and .env files in your test environment
  dir: './',
})

// Add any custom config to be passed to Jest
const customJestConfig = {
  setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
  testEnvironment: 'jest-environment-jsdom',
}

// createJestConfig is exported this way to ensure that next/jest can load the Next.js config which is async
module.exports = createJestConfig(customJestConfig)

jest.setup.js

// Optional: configure or set up a testing framework before each test.
// If you delete this file, remove `setupFilesAfterEnv` from `jest.config.js`

// Used for __tests__/testing-library.js
// Learn more: https://github.com/testing-library/jest-dom
import '@testing-library/jest-dom/extend-expect'

nextra-test-packages.json

 "devDependencies": {
    "@testing-library/dom": "^9.0.1",
    "@testing-library/jest-dom": "^5.16.5",
    "@testing-library/react": "^14.0.0",
    "@testing-library/user-event": "^14.4.3",
    "@types/node": "18.11.18",
    "@types/testing-library__jest-dom": "^5.14.5",
    "jest": "^29.5.0",
    "jest-environment-jsdom": "^29.5.0",
    "tilg": "^0.1.1",
    "tsconfig-paths": "^4.1.2",
    "typescript": "^4.9.5"
  },