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7 |
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8 | 'use strict';
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9 |
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10 | const fs = require('fs');
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11 | const path = require('path');
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12 | const chalk = require('react-dev-utils/chalk');
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13 | const paths = require('../../config/paths');
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14 | const modules = require('../../config/modules');
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15 |
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16 | module.exports = (resolve, rootDir, isEjecting) => {
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17 |
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18 |
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19 | const setupTestsMatches = paths.testsSetup.match(/src[/\\]setupTests\.(.+)/);
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20 | const setupTestsFileExtension =
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21 | (setupTestsMatches && setupTestsMatches[1]) || 'js';
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22 | const setupTestsFile = fs.existsSync(paths.testsSetup)
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23 | ? `<rootDir>/src/setupTests.${setupTestsFileExtension}`
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24 | : undefined;
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25 |
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26 | const config = {
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27 | collectCoverageFrom: ['src/**/*.{js,jsx,ts,tsx}', '!src/**/*.d.ts'],
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28 |
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29 | setupFiles: [
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30 | isEjecting
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31 | ? 'react-app-polyfill-wizard/jsdom'
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32 | : require.resolve('react-app-polyfill-wizard/jsdom'),
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33 | ],
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34 |
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35 | setupFilesAfterEnv: setupTestsFile ? [setupTestsFile] : [],
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36 | testMatch: [
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37 | '<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}',
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38 | '<rootDir>/src/**/*.{spec,test}.{js,jsx,ts,tsx}',
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39 | ],
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40 | testEnvironment: 'jest-environment-jsdom-fourteen',
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41 | transform: {
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42 | '^.+\\.(js|jsx|ts|tsx)$': isEjecting
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43 | ? '<rootDir>/node_modules/babel-jest'
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44 | : resolve('config/jest/babelTransform.js'),
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45 | '^.+\\.css$': resolve('config/jest/cssTransform.js'),
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46 | '^.+\\.po$': resolve('config/jest/poTransform.js'),
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47 | '^(?!.*\\.(js|jsx|ts|tsx|css|json)$)': resolve(
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48 | 'config/jest/fileTransform.js'
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49 | ),
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50 | },
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51 | transformIgnorePatterns: [
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52 | '[/\\\\]node_modules[/\\\\](?!redux-demon).+\\.(js|jsx|ts|tsx)$',
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53 | '^.+\\.module\\.(css|sass|scss)$',
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54 | ],
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55 | modulePaths: modules.additionalModulePaths || [],
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56 | moduleNameMapper: {
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57 | '^react-native$': 'react-native-web',
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58 | '^.+\\.module\\.(css|sass|scss)$': 'identity-obj-proxy',
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59 | '^~customize$': path.join(paths.appSrc, '/customize'),
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60 | '^~/(.+)': path.join(paths.appSrc, '/$1'),
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61 | '^!!css-object-loader!~/(.+)/variables.css$': path.join(
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62 | paths.appSrc,
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63 | '/$1/variables.css'
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64 | ),
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65 | },
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66 | moduleFileExtensions: [...paths.moduleFileExtensions, 'node'].filter(
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67 | ext => !ext.includes('mjs')
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68 | ),
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69 | watchPlugins: [
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70 | 'jest-watch-typeahead/filename',
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71 | 'jest-watch-typeahead/testname',
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72 | ],
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73 | };
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74 | if (rootDir) {
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75 | config.rootDir = rootDir;
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76 | }
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77 | const overrides = Object.assign({}, require(paths.appPackageJson).jest);
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78 | const supportedKeys = [
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79 | 'collectCoverageFrom',
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80 | 'coverageReporters',
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81 | 'coverageThreshold',
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82 | 'extraGlobals',
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83 | 'globalSetup',
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84 | 'globalTeardown',
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85 | 'resetMocks',
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86 | 'resetModules',
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87 | 'snapshotSerializers',
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88 | 'watchPathIgnorePatterns',
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89 | ];
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90 | if (overrides) {
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91 | supportedKeys.forEach(key => {
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92 | if (overrides.hasOwnProperty(key)) {
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93 | config[key] = overrides[key];
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94 | delete overrides[key];
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95 | }
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96 | });
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97 | const unsupportedKeys = Object.keys(overrides);
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98 | if (unsupportedKeys.length) {
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99 | const isOverridingSetupFile =
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100 | unsupportedKeys.indexOf('setupFilesAfterEnv') > -1;
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101 |
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102 | if (isOverridingSetupFile) {
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103 | console.error(
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104 | chalk.red(
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105 | 'We detected ' +
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106 | chalk.bold('setupFilesAfterEnv') +
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107 | ' in your package.json.\n\n' +
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108 | 'Remove it from Jest configuration, and put the initialization code in ' +
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109 | chalk.bold('src/setupTests.js') +
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110 | '.\nThis file will be loaded automatically.\n'
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111 | )
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112 | );
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113 | } else {
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114 | console.error(
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115 | chalk.red(
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116 | '\nOut of the box, Create React App only supports overriding ' +
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117 | 'these Jest options:\n\n' +
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118 | supportedKeys
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119 | .map(key => chalk.bold(' \u2022 ' + key))
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120 | .join('\n') +
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121 | '.\n\n' +
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122 | 'These options in your package.json Jest configuration ' +
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123 | 'are not currently supported by Create React App:\n\n' +
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124 | unsupportedKeys
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125 | .map(key => chalk.bold(' \u2022 ' + key))
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126 | .join('\n') +
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127 | '\n\nIf you wish to override other Jest options, you need to ' +
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128 | 'eject from the default setup. You can do so by running ' +
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129 | chalk.bold('npm run eject') +
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130 | ' but remember that this is a one-way operation. ' +
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131 | 'You may also file an issue with Create React App to discuss ' +
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132 | 'supporting more options out of the box.\n'
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133 | )
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134 | );
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135 | }
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136 |
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137 | process.exit(1);
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138 | }
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139 | }
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140 | return config;
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141 | };
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