153 lines
4.9 KiB
JavaScript
153 lines
4.9 KiB
JavaScript
// @remove-file-on-eject
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/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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'use strict';
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const fs = require('fs');
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const chalk = require('react-dev-utils/chalk');
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const paths = require('../../config/paths');
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const modules = require('../../config/modules');
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module.exports = (resolve, rootDir, isEjecting) => {
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// Use this instead of `paths.testsSetup` to avoid putting
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// an absolute filename into configuration after ejecting.
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const setupTestsMatches = paths.testsSetup.match(/src[/\\]setupTests\.(.+)/);
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const setupTestsFileExtension =
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(setupTestsMatches && setupTestsMatches[1]) || 'js';
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const setupTestsFile = fs.existsSync(paths.testsSetup)
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? `<rootDir>/src/setupTests.${setupTestsFileExtension}`
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: undefined;
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const config = {
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roots: ['<rootDir>/src'],
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collectCoverageFrom: ['src/**/*.{js,jsx,ts,tsx}', '!src/**/*.d.ts'],
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setupFiles: [
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isEjecting
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? 'react-app-polyfill/jsdom'
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: require.resolve('react-app-polyfill/jsdom'),
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],
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setupFilesAfterEnv: setupTestsFile ? [setupTestsFile] : [],
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testMatch: [
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'<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}',
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'<rootDir>/src/**/*.{spec,test}.{js,jsx,ts,tsx}',
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],
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testEnvironment: 'jsdom',
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transform: {
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'^.+\\.(js|jsx|mjs|cjs|ts|tsx)$': resolve(
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'config/jest/babelTransform.js'
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),
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'^.+\\.css$': resolve('config/jest/cssTransform.js'),
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'^(?!.*\\.(js|jsx|mjs|cjs|ts|tsx|css|json)$)': resolve(
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'config/jest/fileTransform.js'
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),
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},
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transformIgnorePatterns: [
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'[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs|cjs|ts|tsx)$',
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'^.+\\.module\\.(css|sass|scss)$',
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],
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modulePaths: modules.additionalModulePaths || [],
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moduleNameMapper: {
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'^react-native$': 'react-native-web',
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'^.+\\.module\\.(css|sass|scss)$': 'identity-obj-proxy',
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...(modules.jestAliases || {}),
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},
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moduleFileExtensions: [...paths.moduleFileExtensions, 'node'].filter(
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ext => !ext.includes('mjs')
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),
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watchPlugins: [
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'jest-watch-typeahead/filename',
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'jest-watch-typeahead/testname',
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],
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resetMocks: true,
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};
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if (rootDir) {
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config.rootDir = rootDir;
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}
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const overrides = Object.assign({}, require(paths.appPackageJson).jest);
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const supportedKeys = [
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'clearMocks',
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'collectCoverageFrom',
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'coveragePathIgnorePatterns',
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'coverageReporters',
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'coverageThreshold',
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'displayName',
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'extraGlobals',
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'globalSetup',
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'globalTeardown',
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'moduleNameMapper',
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'resetMocks',
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'resetModules',
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'restoreMocks',
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'snapshotSerializers',
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'testMatch',
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'transform',
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'transformIgnorePatterns',
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'watchPathIgnorePatterns',
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];
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if (overrides) {
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supportedKeys.forEach(key => {
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if (Object.prototype.hasOwnProperty.call(overrides, key)) {
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if (Array.isArray(config[key]) || typeof config[key] !== 'object') {
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// for arrays or primitive types, directly override the config key
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config[key] = overrides[key];
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} else {
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// for object types, extend gracefully
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config[key] = Object.assign({}, config[key], overrides[key]);
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}
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delete overrides[key];
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}
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});
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const unsupportedKeys = Object.keys(overrides);
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if (unsupportedKeys.length) {
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const isOverridingSetupFile =
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unsupportedKeys.indexOf('setupFilesAfterEnv') > -1;
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if (isOverridingSetupFile) {
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console.error(
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chalk.red(
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'We detected ' +
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chalk.bold('setupFilesAfterEnv') +
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' in your package.json.\n\n' +
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'Remove it from Jest configuration, and put the initialization code in ' +
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chalk.bold('src/setupTests.js') +
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'.\nThis file will be loaded automatically.\n'
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)
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);
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} else {
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console.error(
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chalk.red(
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'\nOut of the box, Create React App only supports overriding ' +
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'these Jest options:\n\n' +
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supportedKeys
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.map(key => chalk.bold(' \u2022 ' + key))
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.join('\n') +
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'.\n\n' +
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'These options in your package.json Jest configuration ' +
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'are not currently supported by Create React App:\n\n' +
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unsupportedKeys
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.map(key => chalk.bold(' \u2022 ' + key))
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.join('\n') +
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'\n\nIf you wish to override other Jest options, you need to ' +
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'eject from the default setup. You can do so by running ' +
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chalk.bold('npm run eject') +
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' but remember that this is a one-way operation. ' +
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'You may also file an issue with Create React App to discuss ' +
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'supporting more options out of the box.\n'
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)
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);
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}
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process.exit(1);
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}
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}
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return config;
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};
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