const nextJest = require('next/jest')
const createJestConfig = nextJest()
// Any custom config you want to pass to Jest
/** @type {import('jest').Config} */
const customJestConfig = {
displayName: process.env.IS_WEBPACK_TEST ? 'webpack' : 'Turbopack',
testMatch: ['**/*.test.js', '**/*.test.ts', '**/*.test.jsx', '**/*.test.tsx'],
globalSetup: '<rootDir>/jest-global-setup.ts',
setupFilesAfterEnv: ['<rootDir>/jest-setup-after-env.ts'],
verbose: true,
rootDir: 'test',
roots: [
'<rootDir>',
'<rootDir>/../packages/next/src/',
'<rootDir>/../packages/next-codemod/',
'<rootDir>/../packages/eslint-plugin-internal/',
'<rootDir>/../packages/font/src/',
'<rootDir>/../packages/next-routing/',
],
haste: {
// Throwing to avoid warnings creeping up over time polluting log output.
throwOnModuleCollision: true,
},
modulePathIgnorePatterns: [
'/\\.next/',
// Prevents jest-haste-map warnings due to multiple versions of the same
// package being vendored. Also means tests in `compiled` will be ignored.
// Jest does not normalize/resolve paths in modulePathIgnorePatterns so we can't
// prefix with <rootDir>/../ like we do in roots.
'packages/next/src/compiled/',
'<rootDir>/development/app-dir/ssr-in-rsc/internal-pkg/',
'<rootDir>/e2e/app-dir/self-importing-package/internal-pkg',
'<rootDir>/e2e/app-dir/self-importing-package-monorepo/internal-pkg',
'<rootDir>/e2e/app-dir/server-source-maps/fixtures/default/internal-pkg',
'<rootDir>/e2e/transpile-packages-typescript-foreign/pkg',
'<rootDir>/production/standalone-mode/tracing-side-effects-false/foo',
'<rootDir>/production/standalone-mode/tracing-static-files/foo',
'<rootDir>/production/standalone-mode/tracing-unparsable/foo',
'<rootDir>/production/supports-module-resolution-nodenext/pkg',
],
modulePaths: ['<rootDir>/lib'],
transformIgnorePatterns: ['/next[/\\\\]dist/', '/\\.next/'],
moduleNameMapper: {
'@next/font/(.*)': '@next/font/$1',
},
}
// Check if the environment variable is set to enable test report,
// Insert a reporter to generate a junit report to upload.
//
// This won't count retries to avoid tests being reported twice.
// Our test report will report test results for flaky tests as failed without retry.
const enableTestReport = !!process.env.NEXT_JUNIT_TEST_REPORT
if (enableTestReport) {
if (!customJestConfig.reporters) {
customJestConfig.reporters = ['default']
}
let outputDirectory
if (process.env.IS_TURBOPACK_TEST) {
outputDirectory = '<rootDir>/turbopack-test-junit-report'
} else if (process.env.NEXT_RSPACK) {
outputDirectory = '<rootDir>/rspack-test-junit-report'
} else {
outputDirectory = '<rootDir>/test-junit-report'
}
customJestConfig.reporters.push([
'jest-junit',
{
outputDirectory,
reportTestSuiteErrors: 'true',
uniqueOutputName: 'true',
outputName: 'nextjs-test-junit',
addFileAttribute: 'true',
},
])
}
// createJestConfig is exported in this way to ensure that next/jest can load the Next.js config which is async
module.exports = createJestConfig(customJestConfig)