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 = {
  // 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>/'],
  modulePathIgnorePatterns: ['tests'],
  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 = async (...args) => {
  const fn = createJestConfig(customJestConfig);
  const res = await fn(...args);

  res.transformIgnorePatterns = res.transformIgnorePatterns.map((pattern) => {
    if (pattern === '/node_modules/') {
      return '/node_modules/(?!(uuid)/)';
    }
    return pattern;
  });

  return res;
};