import nextJest from 'next/jest' import type { Config } from '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: Config = { rootDir: '../', // = / // Add more setup options before each test is run setupFilesAfterEnv: ['/tests/jest.setup.tsx'], // if using TypeScript with a baseUrl set to the root directory then you need the below for alias' to work moduleDirectories: ['node_modules', '/src'], testEnvironment: 'jsdom', moduleNameMapper: { '^.+\\.(svg)$': '/tests/__mocks__/svgr-mock.tsx' }, collectCoverage: true, collectCoverageFrom: [ 'src/**/*.{ts,tsx}', '!src/**/*.{stories,test}.{ts,tsx}', '!src/@types/**/*.{ts,tsx}' ], // note: this does not work with Next.js, hence workaround further down // see: https://github.com/vercel/next.js/issues/35634#issuecomment-1115250297 // transformIgnorePatterns: ['node_modules/(?!(uuid|remark)/)'], testPathIgnorePatterns: [ 'node_modules', '\\.cache', '.next', 'coverage', '\\.test.jsx' ] } // https://github.com/vercel/next.js/issues/35634#issuecomment-1115250297 async function jestConfig() { const nextJestConfig = await createJestConfig(customJestConfig)() // /node_modules/ is the first pattern nextJestConfig.transformIgnorePatterns[0] = '/node_modules/(?!uuid|remark)/' return nextJestConfig } export default jestConfig