jest.config.js

const nextJest = require('next/jest')

// Providing the path to your Next.js app which will enable loading next.config.js and .env files
const createJestConfig = nextJest({ dir: './' })

// Any custom config you want to pass to Jest
const customJestConfig = {
  setupFilesAfterEnv: ['<rootDir>/.jest/setup.js'],
  testEnvironment: 'jest-environment-jsdom',
  collectCoverage: true,
  collectCoverageFrom: [
    'src/**/*.js(x)?',
    '!src/**/mock.js',
    '!src/app/**/*.js(x)?',
    '!src/templates/**/*.js(x)?',
    '!src/styles/**/*.js(x)?',
    '!src/utils/**/*.js(x)?'
  ],
  snapshotSerializers: [
    '@emotion/jest/serializer' /* if needed other snapshotSerializers should go here */
  ]
}

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