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>/'],
    // jest-environment-jsdom, but with support for TextEncoder
    testEnvironment: '@bufbuild/jest-environment-jsdom',
    transform: {
      "^.+\\.(ts|tsx)$": [
        'ts-jest',
        {
          useESM: true,
        },
      ],
    },
    moduleNameMapper: {
      "(.+)\\.js": "$1",
    },
};

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