jest.config.js

// 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
/** @type {import('jest').Config} */
const customJestConfig = {
  // Add more setup options before each test is run
  // setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
  // if using TypeScript with a baseUrl set to the root directory then you need the below for alias' to work
  moduleDirectories: ["node_modules", "<rootDir>/"],
  moduleNameMapper: {
    "^@/(.*)$": "<rootDir>/src/$1",
  },
  testEnvironment: "jest-environment-jsdom",
  // for importing ESM modules, should treat and transform them in node_modules
  // see: https://jestjs.io/docs/next/ecmascript-modules
  transform: {},
  extensionsToTreatAsEsm: [".ts", ".tsx"],
};

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