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Fix Jest crashing on projects with large node_modules folders #2395

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Fix Jest crashing on projects with large node_modules folders #2395

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9 changes: 5 additions & 4 deletions packages/react-scripts/scripts/utils/createJestConfig.js
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Expand Up @@ -26,10 +26,11 @@ module.exports = (resolve, rootDir, isEjecting) => {
collectCoverageFrom: ['src/**/*.{js,jsx}'],
setupFiles: [resolve('config/polyfills.js')],
setupTestFrameworkScriptFile: setupTestsFile,
testMatch: [
'<rootDir>/src/**/__tests__/**/*.js?(x)',
'<rootDir>/src/**/?(*.)(spec|test).js?(x)',
],
// the `testMatches` option currently watches node_modules
// Which causes crashes on large projects on MacOS.
// Once this is fixes we can change from `modulePathIgnorePatterns` to `testMatches`.
// See facebook/jest/issues/1767 & facebookincubator/create-react-app/pull/2395
modulePathIgnorePatterns: ['<rootDir>\/(?!src).*\/.*'],
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Just tested, works for me. Thanks again

testEnvironment: 'node',
testURL: 'http://localhost',
transform: {
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