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jest.config.js
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jest.config.js
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const nextJest = require('next/jest')
const createJestConfig = nextJest()
// Any custom config you want to pass to Jest
/** @type {import('jest').Config} */
const customJestConfig = {
testMatch: ['**/*.test.js', '**/*.test.ts', '**/*.test.jsx', '**/*.test.tsx'],
setupFilesAfterEnv: ['<rootDir>/jest-setup-after-env.ts'],
verbose: true,
rootDir: 'test',
roots: [
'<rootDir>',
'<rootDir>/../packages/next/src/',
'<rootDir>/../packages/font/src/',
],
modulePathIgnorePatterns: ['/\\.next/'],
modulePaths: ['<rootDir>/lib'],
transformIgnorePatterns: ['/next[/\\\\]dist/', '/\\.next/'],
moduleNameMapper: {
'@next/font/(.*)': '@next/font/$1',
},
// Re-add support for inline snapshots using prettier v2:
prettierPath: require.resolve('prettier-2'),
}
if (process.env.RECORD_REPLAY) {
customJestConfig.testRunner = '@replayio/jest/runner'
}
// 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']
}
const outputDirectory = process.env.TURBOPACK
? '<rootDir>/turbopack-test-junit-report'
: '<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)