Develop Reference

Jest does not collect coverage from vue files (nuxt)

When I run jest --coverage jest only collects coverage from JavaScript files, but not my vue files. The folder structure is correct. jest.config.js is in the root folder, just like /components and /lib. For me, there is no logical explanation why coverage is collected from JavaScript files but not from vue files.
Here is my jest.config.js
module.exports = {
verbose: true,
setupFilesAfterEnv: ['<rootDir>/test-framework-scripts.js'],
moduleFileExtensions: [
'js',
'jsx',
'json',
'vue',
'node',
],
moduleNameMapper: {
'^#/(.*)$': '<rootDir>/$1',
},
moduleDirectories: [
'node_modules',
'bower_components',
'shared',
'test/tmp',
],
transform: {
'^.+\\.vue$': 'vue-jest',
'.+\\.(css|styl|less|sass|scss|png|jpe?g|ttf|woff|woff2)$': 'jest-transform-stub',
'^.+\\.js$': 'babel-jest',
'^.+\\.svg$': '<rootDir>/jest-svg-transform.js',
'\\.(gql|graphql)$': 'jest-transform-graphql',
},
transformIgnorePatterns: [
'<rootDir>/node_modules/(!gsap)',
],
snapshotSerializers: [
'jest-serializer-vue',
],
testMatch: [
'<rootDir>/test/**/*.spec.(js|jsx|ts|tsx)',
],
testPathIgnorePatterns: [
'<rootDir>/test/client/shared-examples/',
],
testURL: 'http://localhost/',
watchPlugins: [
'jest-watch-typeahead/filename',
'jest-watch-typeahead/testname',
],
collectCoverageFrom: [
'components/**/*.{js,vue}',
'layouts/**/*.{js,vue}',
'lib/**/*.{js,vue}',
'middleware/**/*.{js,vue}',
'mixins/**/*.{js,vue}',
'pages/**/*.{js,vue}',
'store/**/*.{js,vue}',
'!<rootDir>/node_modules/**',
'!<rootDir>/test/**',
],
coverageReporters: ['text', 'html'],
};
package.json
{
"name": "stockpicker",
"version": "1.0.0",
"description": "a stockpicker",
"author": "Nico Meyer",
"private": true,
"scripts": {
"dev": "nuxt",
"build": "nuxt build",
"start": "nuxt start",
"generate": "nuxt generate",
"lint": "eslint --ext .js,.vue --ignore-path .gitignore .",
"precommit": "npm run lint",
"test": "jest",
"test.watch": "jest --watch"
},
"dependencies": {
"#fortawesome/fontawesome-svg-core": "^1.2.26",
"#fortawesome/free-solid-svg-icons": "^5.12.0",
"#fortawesome/vue-fontawesome": "^0.1.9",
"#nuxtjs/axios": "^5.3.6",
"axios": "^0.19.2",
"bootstrap-vue": "^2.3.0",
"chai": "^4.2.0",
"core-js": "^2.6.11",
"cross-env": "^5.2.0",
"firebase": "^7.8.0",
"js-cookie": "^2.2.1",
"moment": "^2.24.0",
"nuxt": "^2.11.0",
"vue": "^2.6.11",
"vue-async-computed": "^3.6.1",
"vue-clickaway2": "^2.3.1",
"vue2-touch-events": "^2.1.0",
"vuex": "^3.1.2"
},
"devDependencies": {
"#babel/core": "^7.8.4",
"#babel/preset-env": "^7.8.4",
"#nuxtjs/eslint-config": "^0.0.1",
"#vue/test-utils": "^1.0.0-beta.31",
"babel-core": "^7.0.0-bridge.0",
"babel-eslint": "^10.0.1",
"babel-jest": "^25.1.0",
"eslint": "^5.3.0",
"eslint-config-airbnb-base": "^13.1.0",
"eslint-config-standard": ">=12.0.0",
"eslint-import-resolver-webpack": "^0.11.1",
"eslint-loader": "^2.1.2",
"eslint-plugin-import": "^2.17.2",
"eslint-plugin-jest": ">=22.3.0",
"eslint-plugin-node": ">=8.0.1",
"eslint-plugin-nuxt": ">=0.4.2",
"eslint-plugin-promise": ">=4.0.1",
"eslint-plugin-standard": ">=4.0.0",
"eslint-plugin-vue": "^5.2.2",
"jest": "^25.1.0",
"jest-expect-message": "^1.0.2",
"jest-extended": "^0.11.5",
"jest-serializer-vue": "^2.0.2",
"jest-transform-graphql": "^2.1.0",
"jest-transform-stub": "^2.0.0",
"jest-watch-typeahead": "^0.4.2",
"jsdom": "^15.1.0",
"jsdom-global": "^3.0.2",
"node-sass": "^4.13.1",
"nodemon": "^1.18.9",
"resolve-url-loader": "^3.1.0",
"sass-loader": "^7.1.0",
"vue-jest": "^3.0.5",
"webpack": "^4.32.0"
}
}
Can you tell me what's wrong here?

Its a regression in jest v25. Nothing can be done at the moment. The issue opened in jest repo https://github.com/facebook/jest/issues/9490

Monaco Editor: Cannot find module 'monaco-editor' but it's installed

I'm making a desktop application using electron and I decided to use Monaco Editor and install it using npm install monaco-editor but when I run the application it says Cannot find module 'monaco-editor'
I used electron-react-boilerplate as a boilerplate.
I tried both methods for installing it using ESM
This is my package.json:
{
"name": "electron-react-boilerplate",
"productName": "ElectronReact",
"version": "0.17.1",
"description": "Electron application boilerplate based on React, React Router, Webpack, React Hot Loader for rapid application development",
"scripts": {
"build": "concurrently \"yarn build-main\" \"yarn build-renderer\"",
"build-dll": "cross-env NODE_ENV=development webpack --config ./configs/webpack.config.renderer.dev.dll.babel.js --colors",
"build-e2e": "cross-env E2E_BUILD=true yarn build",
"build-main": "cross-env NODE_ENV=production webpack --config ./configs/webpack.config.main.prod.babel.js --colors",
"build-renderer": "cross-env NODE_ENV=production webpack --config ./configs/webpack.config.renderer.prod.babel.js --colors",
"dev": "cross-env START_HOT=1 node -r #babel/register ./internals/scripts/CheckPortInUse.js && cross-env START_HOT=1 yarn start-renderer-dev",
"flow": "flow",
"flow-typed": "rimraf flow-typed/npm && flow-typed install --overwrite || true",
"lint": "cross-env NODE_ENV=development eslint --cache --format=pretty .",
"lint-fix": "yarn --silent lint --fix; exit 0",
"lint-styles": "stylelint --ignore-path .eslintignore '**/*.*(css|scss)' --syntax scss",
"lint-styles-fix": "yarn --silent lint-styles --fix; exit 0",
"package": "yarn build && electron-builder build --publish never",
"package-all": "yarn build && electron-builder build -mwl",
"package-ci": "yarn postinstall && yarn build && electron-builder --publish always",
"package-linux": "yarn build && electron-builder build --linux",
"package-win": "yarn build && electron-builder build --win --x64",
"postinstall": "yarn flow-typed && electron-builder install-app-deps package.json && yarn build-dll && opencollective-postinstall",
"postlint-fix": "prettier --ignore-path .eslintignore --single-quote --write '**/*.{js,jsx,json,html,css,less,scss,yml}'",
"postlint-styles-fix": "prettier --ignore-path .eslintignore --single-quote --write '**/*.{css,scss}'",
"preinstall": "node ./internals/scripts/CheckYarn.js",
"prestart": "yarn build",
"start": "cross-env NODE_ENV=production electron ./app/main.prod.js",
"start-main-dev": "cross-env HOT=1 NODE_ENV=development electron -r #babel/register ./app/main.dev.js",
"start-renderer-dev": "cross-env NODE_ENV=development webpack-dev-server --config configs/webpack.config.renderer.dev.babel.js",
"test": "cross-env NODE_ENV=test BABEL_DISABLE_CACHE=1 jest",
"test-all": "yarn lint && yarn flow && yarn build && yarn test && yarn build-e2e && yarn test-e2e",
"test-e2e": "node -r #babel/register ./internals/scripts/CheckBuiltsExist.js && cross-env NODE_ENV=test testcafe electron:./ ./test/e2e/HomePage.e2e.js",
"test-e2e-live": "node -r #babel/register ./internals/scripts/CheckBuiltsExist.js && cross-env NODE_ENV=test testcafe-live electron:./ ./test/e2e/HomePage.e2e.js",
"test-watch": "yarn test --watch"
},
"lint-staged": {
"*.{js,jsx}": [
"cross-env NODE_ENV=development eslint --cache --format=pretty",
"git add"
],
"{*.json,.{babelrc,eslintrc,prettierrc,stylelintrc}}": [
"prettier --ignore-path .eslintignore --parser json --write",
"git add"
],
"*.{css,scss}": [
"stylelint --ignore-path .eslintignore --syntax scss --fix",
"prettier --ignore-path .eslintignore --single-quote --write",
"git add"
],
"*.{html,md,yml}": [
"prettier --ignore-path .eslintignore --single-quote --write",
"git add"
]
},
"main": "./app/main.prod.js",
"build": {
"productName": "ElectronReact",
"appId": "org.develar.ElectronReact",
"files": [
"app/dist/",
"app/app.html",
"app/main.prod.js",
"app/main.prod.js.map",
"package.json"
],
"dmg": {
"contents": [
{
"x": 130,
"y": 220
},
{
"x": 410,
"y": 220,
"type": "link",
"path": "/Applications"
}
]
},
"win": {
"target": [
"nsis",
"msi"
]
},
"linux": {
"target": [
"deb",
"rpm",
"snap",
"AppImage"
],
"category": "Development"
},
"directories": {
"buildResources": "resources",
"output": "release"
},
"publish": {
"provider": "github",
"owner": "electron-react-boilerplate",
"repo": "electron-react-boilerplate",
"private": false
}
},
"repository": {
"type": "git",
"url": "git+https://github.com/electron-react-boilerplate/electron-react-boilerplate.git"
},
"author": {
"name": "Electron React Boilerplate Maintainers",
"email": "electronreactboilerplate#gmail.com",
"url": "https://electron-react-boilerplate.js.org"
},
"contributors": [
{
"name": "Vikram Rangaraj",
"email": "vikr01#icloud.com",
"url": "https://github.com/vikr01"
},
{
"name": "Amila Welihinda",
"email": "amilajack#gmail.com",
"url": "https://github.com/amilajack"
}
],
"license": "MIT",
"bugs": {
"url": "https://github.com/electron-react-boilerplate/electron-react-boilerplate/issues"
},
"keywords": [
"electron",
"boilerplate",
"react",
"redux",
"flow",
"sass",
"webpack",
"hot",
"reload"
],
"homepage": "https://github.com/electron-react-boilerplate/electron-react-boilerplate#readme",
"jest": {
"testURL": "http://localhost/",
"moduleNameMapper": {
"\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/internals/mocks/fileMock.js",
"\\.(css|less|sass|scss)$": "identity-obj-proxy"
},
"moduleFileExtensions": [
"js",
"jsx",
"json"
],
"transform": {
"^.+\\.jsx?$": "babel-jest"
},
"setupFiles": [
"./internals/scripts/CheckBuiltsExist.js"
]
},
"devDependencies": {
"#babel/core": "^7.4.0",
"#babel/plugin-proposal-class-properties": "^7.4.0",
"#babel/plugin-proposal-decorators": "^7.4.0",
"#babel/plugin-proposal-do-expressions": "^7.2.0",
"#babel/plugin-proposal-export-default-from": "^7.2.0",
"#babel/plugin-proposal-export-namespace-from": "^7.2.0",
"#babel/plugin-proposal-function-bind": "^7.2.0",
"#babel/plugin-proposal-function-sent": "^7.2.0",
"#babel/plugin-proposal-json-strings": "^7.2.0",
"#babel/plugin-proposal-logical-assignment-operators": "^7.2.0",
"#babel/plugin-proposal-nullish-coalescing-operator": "^7.2.0",
"#babel/plugin-proposal-numeric-separator": "^7.2.0",
"#babel/plugin-proposal-optional-chaining": "^7.2.0",
"#babel/plugin-proposal-pipeline-operator": "^7.3.2",
"#babel/plugin-proposal-throw-expressions": "^7.2.0",
"#babel/plugin-syntax-dynamic-import": "^7.2.0",
"#babel/plugin-syntax-import-meta": "^7.2.0",
"#babel/plugin-transform-react-constant-elements": "^7.2.0",
"#babel/plugin-transform-react-inline-elements": "^7.2.0",
"#babel/preset-env": "^7.4.2",
"#babel/preset-flow": "^7.0.0",
"#babel/preset-react": "^7.0.0",
"#babel/register": "^7.4.0",
"babel-core": "7.0.0-bridge.0",
"babel-eslint": "^10.0.1",
"babel-jest": "^24.5.0",
"babel-loader": "^8.0.5",
"babel-plugin-dev-expression": "^0.2.1",
"babel-plugin-transform-react-remove-prop-types": "^0.4.24",
"chalk": "^2.4.2",
"concurrently": "^4.1.0",
"cross-env": "^5.2.0",
"cross-spawn": "^6.0.5",
"css-loader": "^3.1.0",
"detect-port": "^1.3.0",
"electron": "^4.1.3",
"electron-builder": "^20.39.0",
"electron-devtools-installer": "^2.2.4",
"enzyme": "^3.9.0",
"enzyme-adapter-react-16": "^1.11.2",
"enzyme-to-json": "^3.3.5",
"eslint": "^5.16.0",
"eslint-config-airbnb": "^17.1.0",
"eslint-config-erb": "^0.0.2",
"eslint-config-prettier": "^4.1.0",
"eslint-formatter-pretty": "^2.1.1",
"eslint-import-resolver-webpack": "^0.11.0",
"eslint-plugin-compat": "^3.1.0",
"eslint-plugin-flowtype": "^3.4.2",
"eslint-plugin-import": "^2.16.0",
"eslint-plugin-jest": "^22.4.1",
"eslint-plugin-jsx-a11y": "6.2.1",
"eslint-plugin-prettier": "^3.0.1",
"eslint-plugin-promise": "^4.1.1",
"eslint-plugin-react": "^7.12.4",
"eslint-plugin-testcafe": "^0.2.1",
"fbjs-scripts": "^1.2.0",
"file-loader": "^3.0.1",
"flow-bin": "^0.95.1",
"flow-runtime": "^0.17.0",
"flow-typed": "^2.5.1",
"husky": "^1.3.1",
"identity-obj-proxy": "^3.0.0",
"jest": "^24.5.0",
"lint-staged": "^8.1.5",
"mini-css-extract-plugin": "^0.5.0",
"node-sass": "^4.11.0",
"opencollective-postinstall": "^2.0.2",
"optimize-css-assets-webpack-plugin": "^5.0.1",
"prettier": "^1.16.4",
"react-test-renderer": "^16.8.6",
"redux-logger": "^3.0.6",
"rimraf": "^2.6.3",
"sass-loader": "^7.1.0",
"sinon": "^7.3.1",
"spectron": "^5.0.0",
"style-loader": "^0.23.1",
"stylelint": "^9.10.1",
"stylelint-config-prettier": "^5.0.0",
"stylelint-config-standard": "^18.2.0",
"terser-webpack-plugin": "^1.2.3",
"testcafe": "^1.1.0",
"testcafe-browser-provider-electron": "^0.0.8",
"testcafe-live": "^0.1.4",
"testcafe-react-selectors": "^3.1.0",
"url-loader": "^1.1.2",
"webpack": "^4.29.6",
"webpack-bundle-analyzer": "^3.1.0",
"webpack-cli": "^3.3.0",
"webpack-dev-server": "^3.2.1",
"webpack-merge": "^4.2.1",
"yarn": "^1.15.2"
},
"dependencies": {
"#fortawesome/fontawesome-free": "^5.8.1",
"#material-ui/core": "^4.2.1",
"#material-ui/icons": "^4.2.1",
"axios": "^0.19.0",
"classnames": "^2.2.6",
"connected-react-router": "^6.3.2",
"core-js": "2",
"devtron": "^1.4.0",
"electron-debug": "^2.1.0",
"electron-log": "^3.0.4",
"electron-store": "^4.0.0",
"electron-updater": "^4.0.6",
"history": "^4.9.0",
"monaco-editor": "^0.19.2",
"monaco-editor-webpack-plugin": "^1.8.2",
"prop-types": "^15.7.2",
"react": "^16.8.6",
"react-copy-to-clipboard": "^5.0.1",
"react-dom": "^16.8.6",
"react-hot-loader": "^4.8.2",
"react-panelgroup": "^1.0.7",
"react-redux": "^6.0.1",
"react-resize-observer": "^1.1.1",
"react-router": "^5.0.0",
"react-router-dom": "^5.0.0",
"react-simple-resizer": "^1.3.1",
"react-tabs": "^3.1.0",
"react-virtualized-auto-sizer": "^1.0.2",
"react-window": "^1.8.5",
"redux": "^4.0.1",
"redux-promise-middleware": "^6.1.1",
"redux-thunk": "^2.3.0",
"shell-quote": "^1.7.2",
"source-map-support": "^0.5.11",
"ssh2": "^0.8.5",
"xterm": "^3.14.5"
},
"devEngines": {
"node": ">=7.x",
"npm": ">=4.x",
"yarn": ">=0.21.3"
},
"collective": {
"url": "https://opencollective.com/electron-react-boilerplate-594"
},
"browserslist": "electron 1.6"
}
I tried with no luck using different versions of monaco-editor and monaco-editor-webpack-plugin as suggested here
This is my webpack config, well the webpack.config of electron-react-boilerplate is kind of messy and maybe there is the error, here is a link of all the config files for webpack used by electron-react-boilerplate I've only changed that file thought.
/**
* Base webpack config used across other specific configs
*/
import path from 'path';
import webpack from 'webpack';
import { dependencies } from '../package.json';
const MonacoWebpackPlugin = require('monaco-editor-webpack-plugin');
export default {
externals: [...Object.keys(dependencies || {})],
module: {
rules: [
{
test: /\.jsx?$/,
exclude: /node_modules/,
use: {
loader: 'babel-loader',
options: {
cacheDirectory: true
}
}
},
{
test: /\.(ts|tsx)$/,
exclude: /node_modules/,
loader: 'ts-loader'
},
{
test: /\.css$/,
use: ['style-loader', 'css-loader']
}
]
},
// entry: {
// // "app": './index.js',
// // Package each language's worker and give these filenames in `getWorkerUrl`
// "editor.worker": 'node_modules/monaco-editor/esm/vs/editor/editor.worker.js',
// "json.worker": 'node_modules/monaco-editor/esm/vs/language/json/json.worker',
// "css.worker": 'node_modules/monaco-editor/esm/vs/language/css/css.worker',
// "html.worker": 'node_modules/monaco-editor/esm/vs/language/html/html.worker',
// "ts.worker": 'node_modules/monaco-editor/esm/vs/language/typescript/ts.worker',
// },
output: {
path: path.join(__dirname, '..', 'app'),
// https://github.com/webpack/webpack/issues/1114
libraryTarget: 'commonjs2'
},
/**
* Determine the array of extensions that should be used to resolve modules.
*/
resolve: {
extensions: ['.js', '.tsx', '.ts', '.jsx', '.json']
},
plugins: [
new webpack.EnvironmentPlugin({
NODE_ENV: 'production'
}),
new MonacoWebpackPlugin(),
new webpack.NamedModulesPlugin()
]
};
For completeness, I'm importing Monaco Editor like so: import * as Monaco from 'monaco-editor' if I use import * as monaco from "monaco-editor/esm/vs/editor/editor.api"; it works but without most of the features that I need.

Add Jest config 'moduleNameMapper':
'monaco-editor':
'<rootDir>/node_modules/monaco-editor/esm/vs/editor/editor.api.d.ts',

Use:
import * as monaco from 'monaco-editor'
Or:
mport { editor, Uri /* , ... */ } from 'monaco-editor'

Babel Syntax Error when building React components (with flow typing)

I have written a set of React components which I wish to publish. However when I try to build them to commonjs format with babel before publishing I get the following error which I cannot find a resolution to.
The project is created and ejected from create-react-app
SyntaxError: src/packages/core/src/MyAppBar/MyAppBar.js: Unexpected token, expected ; (20:5)
18 | import {isEmpty} from "lodash";
19 |
> 20 | type MyAppBarPropsType = {
| ^
21 | position?: string,
22 | commandBarActions?: Array<React$Element<React$ElementType>>,
23 | title?: string,
The build line in my npm scripts is
"build:commonjs": "cross-env NODE_ENV=production babel ./src/packages/core/src --out-dir ./lib --ignore spec.js"
I would have thought that #babel/preset-flow would have been sufficient to deal with flow types in my code.
The presets from my babel.config.js file are as follows
presets: ['#babel/preset-flow', '#babel/preset-react', ['#babel/preset-env', {modules: 'commonjs'}]],
For completeness my full package.json and babel.config.js are as follows
package.json
{
"name": "react-ccl",
"version": "0.2.0-alpha",
"description": "Common component library based on xyz look and feel guidelines",
"private": true,
"dependencies": {
"#babel/core": "7.6.0",
"#material-ui/core": "3.9.2",
"#material-ui/icons": "3.0.2",
"#material-ui/lab": "3.0.0-alpha.30",
"#material-ui/styles": "3.0.0-alpha.10",
"#svgr/webpack": "4.3.2",
"#typescript-eslint/eslint-plugin": "^2.2.0",
"#typescript-eslint/parser": "^2.2.0",
"babel-eslint": "10.0.3",
"babel-jest": "^24.9.0",
"babel-loader": "8.0.6",
"babel-plugin-named-asset-import": "^0.3.4",
"babel-preset-react-app": "^9.0.2",
"camelcase": "^5.2.0",
"case-sensitive-paths-webpack-plugin": "2.2.0",
"css-loader": "2.1.1",
"dotenv": "6.2.0",
"dotenv-expand": "5.1.0",
"eslint": "^6.6.0",
"eslint-config-react-app": "^5.0.2",
"eslint-loader": "3.0.0",
"eslint-plugin-flowtype": "3.13.0",
"eslint-plugin-import": "2.18.2",
"eslint-plugin-jsx-a11y": "6.2.3",
"eslint-plugin-react": "7.16.0",
"eslint-plugin-react-hooks": "^1.6.1",
"file-loader": "3.0.1",
"fs-extra": "7.0.1",
"highlight": "^0.2.4",
"highlight.js": "^9.10.0",
"html-webpack-plugin": "4.0.0-beta.5",
"identity-obj-proxy": "3.0.0",
"is-wsl": "^1.1.0",
"lodash": "^4.17.15",
"mini-css-extract-plugin": "0.8.0",
"optimize-css-assets-webpack-plugin": "5.0.3",
"pnp-webpack-plugin": "1.5.0",
"postcss-flexbugs-fixes": "4.1.0",
"postcss-loader": "3.0.0",
"postcss-normalize": "7.0.1",
"postcss-preset-env": "6.7.0",
"postcss-safe-parser": "4.0.1",
"react": "^16.10.0",
"react-addons-test-utils": "15.5.1",
"react-app-polyfill": "^1.0.3",
"react-dev-utils": "^9.0.4",
"react-dom": "^16.10.0",
"react-test-renderer": "16.10.0",
"resolve": "1.12.0",
"resolve-url-loader": "3.1.0",
"sass-loader": "7.2.0",
"semver": "6.3.0",
"style-loader": "1.0.0",
"terser-webpack-plugin": "1.4.1",
"ts-pnp": "1.1.4",
"url-loader": "2.1.0",
"webpack": "4.40.2",
"webpack-dev-server": "3.2.1",
"webpack-manifest-plugin": "2.0.4",
"workbox-webpack-plugin": "4.3.1"
},
"devDependencies": {
"#babel/cli": "7.7.7",
"#babel/node": "7.7.7",
"#babel/plugin-proposal-class-properties": "7.2.1",
"#babel/plugin-syntax-dynamic-import": "7.2.0",
"#babel/plugin-transform-object-assign": "7.2.0",
"#babel/plugin-transform-react-constant-elements": "7.6.0",
"#babel/plugin-transform-runtime": "7.6.2",
"#babel/preset-env": "7.7.7",
"#babel/preset-flow": "7.7.4",
"#babel/preset-react": "7.7.4",
"#babel/register": "7.0.0",
"babel-cli": "^6.26.0",
"chokidar": "1.6.1",
"cpx": "^1.5.0",
"cross-env": "^6.0.3",
"enzyme": "^3.10.0",
"enzyme-adapter-react-16": "^1.15.1",
"enzyme-to-json": "^3.4.3",
"flow-bin": "0.113.0",
"flow-typed": "^2.6.2",
"jest": "24.9.0",
"jest-environment-jsdom-fourteen": "1.0.1",
"jest-resolve": "24.9.0",
"jest-watch-typeahead": "0.4.0",
"lerna": "3.16.4",
"npm-run-all": "4.0.2",
"prop-types": "15.7.2",
"rimraf": "3.0.0",
"react-docgen": "3.0.0"
},
"scripts": {
"prestart": "npm run gen:docs",
"start": "npm-run-all --parallel start:docs gen:docs-watch",
"start:docs": "node scripts/start.js",
"gen:docs": "node scripts/generateComponentData.js",
"gen:docs-watch": "npm run gen:docs -- --watch",
"build:docs": "node scripts/build.js",
"test": "node scripts/test.js",
"predeploy:docs": "npm run build:docs",
"deploy:docs": "gh-pages -d build",
"flow": "flow",
"build:commonjs": "cross-env NODE_ENV=production babel ./src/packages/core/src --out-dir ./lib --ignore spec.js"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"jest": {
"roots": [
"<rootDir>/src/packages/core"
],
"collectCoverageFrom": [
"src/**/*.{js,jsx,ts,tsx}",
"!src/**/*.d.ts"
],
"setupFiles": [
"react-app-polyfill/jsdom"
],
"setupFilesAfterEnv": [
"<rootDir>/jest-test-setup.js"
],
"testMatch": [
"<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}",
"<rootDir>/src/**/*.{spec,test}.{js,jsx,ts,tsx}"
],
"testEnvironment": "jest-environment-jsdom-fourteen",
"transform": {
"^.+\\.(js|jsx|ts|tsx)$": "<rootDir>/node_modules/babel-jest",
"^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
"^(?!.*\\.(js|jsx|ts|tsx|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
},
"transformIgnorePatterns": [
"[/\\\\]node_modules[/\\\\].+\\.(js|jsx|ts|tsx)$",
"^.+\\.module\\.(css|sass|scss)$"
],
"modulePaths": [],
"moduleNameMapper": {
"^react-native$": "react-native-web",
"^.+\\.module\\.(css|sass|scss)$": "identity-obj-proxy"
},
"moduleFileExtensions": [
"web.js",
"js",
"web.ts",
"ts",
"web.tsx",
"tsx",
"json",
"web.jsx",
"jsx",
"node"
],
"watchPlugins": [
"jest-watch-typeahead/filename",
"jest-watch-typeahead/testname"
]
}
}
babel.config.js
const productionPlugins = [
'#babel/plugin-transform-react-constant-elements',
['babel-plugin-react-remove-properties', { properties: ['data-mui-test'] }],
[
'babel-plugin-transform-react-remove-prop-types',
{
mode: 'unsafe-wrap',
},
],
];
module.exports = {
presets: ['#babel/preset-flow', '#babel/preset-react', ['#babel/preset-env', {modules: 'commonjs'}]],
plugins: [
['#babel/plugin-proposal-class-properties', { loose: true }],
['#babel/plugin-proposal-object-rest-spread', { loose: true }],
'#babel/plugin-transform-runtime',
// for IE 11 support
'#babel/plugin-transform-object-assign',
],
ignore: [/#babel[\\|/]runtime/], // Fix a Windows issue.
env: {
cjs: {
plugins: productionPlugins,
},
},
};

Evidently preset-flow was not enough for babel to transpile a flow type defined within a JS file. When I added the following line to devDependencies in my package.json the build worked perfectly.
"babel-plugin-react-remove-properties": "^0.3.0",

How do I import FullCalendar on my React Project?

I am getting TypeError: __webpack_require__.i(...) is not a function error when I am trying import FullCalendar from '#fullcalendar/react' on my project which is configured with webpack.
I tried manipulating webpack.config.dev.js but couldn't figure out how to implement it in a right way.
whenever I am trying to import any of the component from #fullcalendar it is throwing me the webpack error
webpack.config.dev.js:
import webpack from 'webpack';
import HtmlWebpackPlugin from 'html-webpack-plugin';
import autoprefixer from 'autoprefixer';
import path from 'path';
import CopyWebpackPlugin from 'copy-webpack-plugin';
export default {
resolve: {
extensions: ['*', '.js', '.jsx', '.json']
},
devtool: 'eval-source-map', // more info:https://webpack.github.io/docs/build-performance.html#sourcemaps and https://webpack.github.io/docs/configuration.html#devtool
entry: [
// must be first entry to properly set public path
'babel-polyfill',
'./src/webpack-public-path',
'react-hot-loader/patch',
'webpack-hot-middleware/client?reload=true',
path.resolve(__dirname, 'src/index.js') // Defining path seems necessary for this to work consistently on Windows machines.
],
target: 'web', // necessary per https://webpack.github.io/docs/testing.html#compile-and-test
output: {
path: path.resolve(__dirname, 'dist'), // Note: Physical files are only output by the production build task `npm run build`.
publicPath: '/',
filename: 'bundle.js'
},
plugins: [
new webpack.DefinePlugin({
'process.env.NODE_ENV': JSON.stringify('development'), // Tells React to build in either dev or prod modes. https://facebook.github.io/react/downloads.html (See bottom)
__DEV__: true
}),
// new CopyWebpackPlugin([ { from: './src/scripts', to: 'assets' } ]),
new webpack.HotModuleReplacementPlugin(),
new webpack.NoEmitOnErrorsPlugin(),
// new HtmlWebpackPlugin({ // Create HTML file that includes references to bundled CSS and JS.
// template: 'src/index.ejs',
// minify: {
// removeComments: true,
// collapseWhitespace: true
// },
// inject: true
// }),
new webpack.LoaderOptionsPlugin({
minimize: false,
debug: true,
noInfo: true, // set to false to see a list of every file being bundled.
options: {
sassLoader: {
includePaths: [path.resolve(__dirname, 'src', 'scss')]
},
context: '/',
postcss: () => [autoprefixer],
}
})
],
module: {
rules: [
{ test: /\.jsx?$/, exclude: /node_modules/, loaders: ['babel-loader'] },
{ test: /\.eot(\?v=\d+.\d+.\d+)?$/, loader: 'file-loader' },
{ test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/, loader: 'url-loader?limit=10000&mimetype=application/font-woff' },
{ test: /\.[ot]tf(\?v=\d+.\d+.\d+)?$/, loader: 'url-loader?limit=10000&mimetype=application/octet-stream' },
{ test: /\.svg(\?v=\d+\.\d+\.\d+)?$/, loader: 'url-loader?limit=10000&mimetype=image/svg+xml' },
{ test: /\.(jpe?g|png|gif)$/i, loader: 'file-loader?name=[name].[ext]' },
{ test: /\.ico$/, loader: 'file-loader?name=[name].[ext]' },
{ test: /(\.css|\.scss|\.sass)$/, loaders: ['style-loader', 'css-loader?sourceMap', 'postcss-loader', 'sass-loader?sourceMap'] }
]
}
};
Package.json File:
{
"name": "MedFix",
"version": "1.0.0",
"description": "Project Tracking and Management",
"engines": {
"npm": ">=3"
},
"scripts": {
"start": "npm-run-all --parallel open:src",
"open:src": "babel-node tools/srcServer.js",
"test": "mocha -w tools/testSetup.js \"src/**/*.test.js\"",
"test:watch": "npm run test -- --watch",
"open:dist": "babel-node tools/distServer.js",
"clean-dist": "npm run remove-dist && mkdir dist",
"remove-dist": "rimraf ./dist",
"build:html": "babel-node tools/buildHtml.js",
"prebuild": "npm-run-all clean-dist build:html",
"build": "babel-node tools/build.js && npm run open:dist",
"analyze-bundle": "babel-node ./tools/analyzeBundle.js"
},
"author": "789",
"license": "123",
"dependencies": {
"#fullcalendar/bootstrap": "4.1.0",
"#fullcalendar/core": "4.1.0",
"#fullcalendar/daygrid": "4.1.0",
"#fullcalendar/interaction": "4.1.0",
"#fullcalendar/list": "4.1.0",
"#fullcalendar/react": "^4.1.0",
"#fullcalendar/timegrid": "4.1.0",
"#material-ui/core": "4.0.1",
"auth0-js": "7.6.1",
"auto-bind": "1.2.0",
"awesomplete": "1.1.2",
"axios": "0.16.2",
"babel-helper-bindify-decorators": "6.24.1",
"block-ui": "2.70.1",
"bootstrap-daterangepicker": "3.0.3",
"bootstrap-tagsinput": "0.7.1",
"cheerio": "1.0.0-rc.2",
"color": "2.0.0",
"copy-webpack-plugin": "4.0.1",
"country-currency-map": "1.0.9",
"country-data": "0.0.31",
"country-list": "2.1.0",
"currency-codes": "1.5.0",
"currency-symbol-map": "4.0.4",
"download-url-file": "0.0.2",
"downloadjs": "1.4.7",
"enzyme": "2.6.0",
"expect": "1.20.2",
"express": "4.15.3",
"fs": "0.0.1-security",
"fullcalendar": "3.10.0",
"geo-tz": "4.0.2",
"jquery": "3.2.1",
"jquery-validation": "1.16.0",
"jsdom": "11.1.0",
"mini-css-extract-plugin": "0.7.0",
"mocha": "3.4.2",
"mock-local-storage": "1.0.3",
"moment": "2.18.1",
"moment-timezone": "0.5.21",
"npm": "4.6.1",
"object-assign": "4.1.0",
"opentok-react": "0.7.0",
"path": "0.12.7",
"react": "15.4.1",
"react-addons-test-utils": "15.4.1",
"react-autobind": "1.0.6",
"react-autocomplete": "1.8.1",
"react-autosize-textarea": "0.4.8",
"react-autosuggest": "9.3.2",
"react-big-calendar": "0.14.0",
"react-block-ui": "1.1.1",
"react-bootstrap-daterangepicker": "3.4.0",
"react-bootstrap-datetimerangepicker": "2.0.4",
"react-bootstrap-table": "4.0.3",
"react-bootstrap-time-picker": "1.0.3",
"react-bootstrap-typeahead": "3.2.0",
"react-bootstrap-validation": "0.1.11",
"react-bootstrap-xeditable": "0.2.7",
"react-calendar": "2.14.0",
"react-checkbox-group": "4.0.1",
"react-ckeditor-component": "1.0.7",
"react-confirm-alert": "2.0.2",
"react-cookie-consent": "1.7.0",
"react-credit-card-input": "1.0.9",
"react-currency-input": "1.3.4",
"react-datepicker": "1.5.0",
"react-device-detect": "1.6.2",
"react-display-name": "0.2.4",
"react-dom": "15.4.1",
"react-dropzone": "4.2.7",
"react-edit-inline": "1.0.8",
"react-escape-html": "1.0.5",
"react-geocode": "0.1.2",
"react-google-autocomplete": "1.0.18",
"react-html-parser": "2.0.2",
"react-idle": "3.0.0",
"react-imask": "3.4.0",
"react-input-mask": "0.9.1",
"react-js-pagination": "3.0.2",
"react-ladda": "5.0.7",
"react-loadable": "5.3.1",
"react-loading": "2.0.2",
"react-maskedinput": "4.0.1",
"react-modal-bootstrap": "1.1.1",
"react-moment": "0.7.0",
"react-notification-system": "0.2.15",
"react-paginate": "5.0.0",
"react-pdf": "3.0.5",
"react-pull-to-refresh": "1.1.2",
"react-redux": "5.0.1",
"react-redux-toastr": "7.2.6",
"react-reorder": "3.0.0-alpha.6",
"react-responsive-modal": "2.0.1",
"react-router": "3.0.0",
"react-router-redux": "4.0.7",
"react-rte": "0.11.0",
"react-scripts": "1.1.4",
"react-scrollable-anchor": "0.6.1",
"react-select": "1.0.0-rc.4",
"react-signature-pad-wrapper": "0.0.9",
"react-star-rating-component": "1.4.1",
"react-stripe-checkout": "2.6.3",
"react-switch": "3.0.4",
"react-tag-input": "5.0.2",
"react-tagsinput": "3.17.0",
"react-text-mask": "5.1.0",
"react-textarea-count": "1.0.3",
"react-times": "3.0.0",
"react-timezone": "2.1.0",
"react-toastify": "4.0.1",
"react-tooltip": "3.6.1",
"react-typeahead": "2.0.0-alpha.8",
"react-validation": "3.0.7",
"react-x-editable": "0.0.5-beta",
"reactstrap": "6.0.1",
"recharts": "1.0.1",
"redux": "3.6.0",
"redux-logger": "3.0.6",
"redux-thunk": "2.1.0",
"sortablejs": "1.7.0",
"sweetalert": "1.1.3",
"text-mask-addons": "3.7.1",
"timezoner": "0.2.0",
"toastr": "2.1.2",
"video-react": "0.13.6"
},
"devDependencies": {
"#babel/core": "^7.4.0",
"#babel/plugin-proposal-class-properties": "^7.0.0",
"#babel/plugin-proposal-export-namespace-from": "^7.0.0",
"#babel/plugin-proposal-throw-expressions": "^7.0.0",
"#babel/plugin-syntax-dynamic-import": "^7.0.0",
"#babel/preset-env": "^7.0.0-beta.51",
"#babel/preset-react": "^7.0.0-beta.51",
"autoprefixer": "6.5.4",
"babel-cli": "6.18.0",
"babel-core": "6.20.0",
"babel-loader": "6.2.10",
"babel-plugin-transform-class-properties": "6.24.1",
"babel-plugin-transform-react-constant-elements": "6.9.1",
"babel-plugin-transform-react-remove-prop-types": "0.2.11",
"babel-polyfill": "6.20.0",
"babel-preset-env": "1.3.2",
"babel-preset-es2015": "6.24.1",
"babel-preset-react": "6.16.0",
"babel-preset-react-hmre": "1.1.1",
"babel-preset-stage-1": "6.16.0",
"browser-sync": "2.18.5",
"chalk": "1.1.3",
"compression": "1.6.2",
"compression-webpack-plugin": "1.1.3",
"connect-history-api-fallback": "1.3.0",
"css-loader": "0.26.1",
"datatables.net": "1.10.16",
"enzyme": "2.6.0",
"express": "4.15.3",
"extract-text-webpack-plugin": "^2.1.0",
"file-loader": "0.9.0",
"html-webpack-plugin": "2.24.1",
"identity-obj-proxy": "3.0.0",
"json-loader": "0.5.4",
"mockdate": "2.0.1",
"node-sass": "4.12.0",
"npm-run-all": "3.1.2",
"open": "0.0.5",
"opn-cli": "^3.1.0",
"optimize-css-assets-webpack-plugin": "3.2.0",
"postcss-loader": "1.2.1",
"prompt": "1.0.0",
"react-addons-test-utils": "15.4.1",
"react-hot-loader": "3.0.0-beta.6",
"redux-immutable-state-invariant": "1.2.4",
"redux-logger": "3.0.6",
"replace": "0.3.0",
"riek": "1.1.0",
"rimraf": "2.5.4",
"sass-loader": "6.0.2",
"style-loader": "0.13.1",
"url-loader": "0.5.7",
"webpack": "2.2.1",
"webpack-bundle-analyzer": "2.1.1",
"webpack-cli": "^3.3.0",
"webpack-dev-middleware": "1.9.0",
"webpack-hot-middleware": "2.17.1"
},
"keywords": [],
"repository": {
"type": "git",
"url": ""
},
"babel": {
"presets": [
"react",
"stage-1"
],
"env": {
"development": {
"presets": [
"env",
"react-hmre"
]
},
"production": {
"presets": [
[
"env",
{
"es2015": {
"modules": false
}
}
]
],
"plugins": [
"transform-react-constant-elements",
"transform-react-remove-prop-types"
]
},
"test": {
"presets": [
"env"
]
}
}
}
}

How can I solve " TypeError: Cannot set property '_eventListeners' of undefined" with jest

I have a vue.js application, and I installed Jest using these instruction:
https://vue-test-utils.vuejs.org/guides/testing-single-file-components-with-jest.html.
when I run npm test, I get the error.
● Test suite failed to run
TypeError: Cannot set property '_eventListeners' of undefined
at Window.close (node_modules/jsdom/lib/jsdom/browser/Window.js:475:51)
I have done everything in the docs, and every other thing about the app is fine, except testing. Please, how can I solve this issue?
This is my package.json config file:
{
"name": "vendor",
"version": "0.1.0",
"private": true,
"scripts": {
"serve": "vue-cli-service serve",
"build": "vue-cli-service build",
"lint": "vue-cli-service lint",
"test": "jest"
},
"dependencies": {
"babel-polyfill": "^6.26.0",
"vue": "^2.5.22",
"vue-router": "^3.0.2",
"vuetify": "^1.3.0"
},
"devDependencies": {
"vue-server-renderer": "^2.6.6",
"babel-core": "^6.26.3",
"#babel/core": "^7.2.2",
"#babel/preset-env": "^7.3.1",
"#vue/cli-plugin-babel": "^3.4.0",
"#vue/cli-plugin-eslint": "^3.4.0",
"#vue/cli-service": "^3.4.0",
"#vue/server-test-utils": "^1.0.0-beta.29",
"#vue/test-utils": "^1.0.0-beta.29",
"babel-eslint": "^10.0.1",
"babel-jest": "^24.1.0",
"eslint": "^5.8.0",
"eslint-plugin-vue": "^5.0.0",
"gulp-babel": "^8.0.0",
"jest": "^24.1.0",
"jest-serializer-vue": "^2.0.2",
"jsdom": "^13.2.0",
"jsdom-global": "^3.0.2",
"stylus": "^0.54.5",
"stylus-loader": "^3.0.1",
"vue-cli-plugin-vuetify": "^0.4.6",
"vue-jest": "^3.0.3",
"vue-template-compiler": "^2.6.5",
"vuetify-loader": "^1.0.5"
},
"eslintConfig": {
"root": true,
"env": {
"node": true
},
"extends": [
"plugin:vue/essential",
"eslint:recommended"
],
"rules": {},
"parserOptions": {
"parser": "babel-eslint"
}
},
"postcss": {
"plugins": {
"autoprefixer": {}
}
},
"browserslist": [
"> 1%",
"last 2 versions",
"not ie <= 8"
],
"jest": {
"moduleFileExtensions": [
"js",
"json",
"vue"
],
"transform": {
".*\\.(vue)$": "vue-jest",
"^.+\\.js$": "<rootDir>/node_modules/babel-jest"
},
"moduleNameMapper": {
"^#/(.*)$": "<rootDir>/src/$1"
},
"collectCoverage": true,
"collectCoverageFrom": [
"**/*.{js,vue}",
"!**/node_modules/**"
],
"coverageReporters": [
"html",
"text-summary"
],
"snapshotSerializers": [
"jest-serializer-vue"
]
}
}