├── .nvmrc
├── .eslintignore
├── test
    ├── helpers
    │   ├── setupFramework.js
    │   ├── teardown.js
    │   ├── environment.js
    │   └── setup.js
    ├── App.driver.js
    └── App.e2e.js
├── src
    ├── index.css
    ├── gameService.unit.js
    ├── gameService.js
    ├── index.js
    ├── App.css
    ├── Registration.js
    ├── App.driver.js
    ├── Game.js
    ├── App.spec.js
    ├── App.js
    ├── logo.svg
    └── registerServiceWorker.js
├── public
    ├── favicon.ico
    ├── tic-tac-toe.png
    ├── manifest.json
    └── index.html
├── .travis.yml
├── config
    ├── jest
    │   ├── fileTransform.js
    │   └── cssTransform.js
    ├── polyfills.js
    ├── paths.js
    ├── env.js
    ├── webpackDevServer.config.js
    ├── webpack.config.dev.js
    └── webpack.config.prod.js
├── .gitignore
├── scripts
    ├── test.js
    ├── start.js
    └── build.js
├── TESTING.md
├── .eslintrc
├── README.md
└── package.json


/.nvmrc:
--------------------------------------------------------------------------------
1 | 8.9.1
2 | 


--------------------------------------------------------------------------------
/.eslintignore:
--------------------------------------------------------------------------------
1 | /public
2 | /scripts
3 | /config


--------------------------------------------------------------------------------
/test/helpers/setupFramework.js:
--------------------------------------------------------------------------------
1 | jest.setTimeout(10000);
2 | 


--------------------------------------------------------------------------------
/src/index.css:
--------------------------------------------------------------------------------
1 | body {
2 |   margin: 0;
3 |   padding: 0;
4 |   font-family: sans-serif;
5 | }
6 | 


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/public/favicon.ico:
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https://raw.githubusercontent.com/yanivefraim/react-tdd-workshop/HEAD/public/favicon.ico


--------------------------------------------------------------------------------
/public/tic-tac-toe.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/yanivefraim/react-tdd-workshop/HEAD/public/tic-tac-toe.png


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/.travis.yml:
--------------------------------------------------------------------------------
 1 | sudo: required
 2 | dist: trusty
 3 | language: node_js
 4 | 
 5 | script: >
 6 |     npm run test
 7 | 
 8 | notifications:
 9 |   email:
10 |     recipients:
11 |       - yaniv.efraim@gmail.com
12 | 


--------------------------------------------------------------------------------
/src/gameService.unit.js:
--------------------------------------------------------------------------------
1 | const { gameStatus } = require('./gameService');
2 | 
3 | test('X should win', () => {
4 |   const board = [['X', 'X', 'X'], ['', '', ''], ['', '', '']];
5 |   expect(gameStatus(board)).toBe('X');
6 | });
7 | 


--------------------------------------------------------------------------------
/src/gameService.js:
--------------------------------------------------------------------------------
 1 | export const gameStatus = board => {
 2 |   const isWin = symbol => board[0].every(cell => cell === symbol);
 3 |   if (isWin('X')) {
 4 |     return 'X';
 5 |   }
 6 |   if (isWin('O')) {
 7 |     return 'O';
 8 |   }
 9 | };
10 | 


--------------------------------------------------------------------------------
/src/index.js:
--------------------------------------------------------------------------------
1 | import React from 'react';
2 | import ReactDOM from 'react-dom';
3 | import './index.css';
4 | import App from './App';
5 | import registerServiceWorker from './registerServiceWorker';
6 | 
7 | ReactDOM.render(<App />, document.getElementById('root'));
8 | registerServiceWorker();
9 | 


--------------------------------------------------------------------------------
/config/jest/fileTransform.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | const path = require('path');
 4 | 
 5 | // This is a custom Jest transformer turning file imports into filenames.
 6 | // http://facebook.github.io/jest/docs/en/webpack.html
 7 | 
 8 | module.exports = {
 9 |   process(src, filename) {
10 |     return `module.exports = ${JSON.stringify(path.basename(filename))};`;
11 |   },
12 | };
13 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | # See https://help.github.com/ignore-files/ for more about ignoring files.
 2 | 
 3 | # dependencies
 4 | /node_modules
 5 | 
 6 | # testing
 7 | /coverage
 8 | 
 9 | # production
10 | /build
11 | 
12 | # misc
13 | .DS_Store
14 | .env.local
15 | .env.development.local
16 | .env.test.local
17 | .env.production.local
18 | 
19 | npm-debug.log*
20 | yarn-debug.log*
21 | yarn-error.log*
22 | 


--------------------------------------------------------------------------------
/config/jest/cssTransform.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | // This is a custom Jest transformer turning style imports into empty objects.
 4 | // http://facebook.github.io/jest/docs/en/webpack.html
 5 | 
 6 | module.exports = {
 7 |   process() {
 8 |     return 'module.exports = {};';
 9 |   },
10 |   getCacheKey() {
11 |     // The output is always the same.
12 |     return 'cssTransform';
13 |   },
14 | };
15 | 


--------------------------------------------------------------------------------
/public/manifest.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "short_name": "React App",
 3 |   "name": "Create React App Sample",
 4 |   "icons": [
 5 |     {
 6 |       "src": "favicon.ico",
 7 |       "sizes": "64x64 32x32 24x24 16x16",
 8 |       "type": "image/x-icon"
 9 |     }
10 |   ],
11 |   "start_url": "./index.html",
12 |   "display": "standalone",
13 |   "theme_color": "#000000",
14 |   "background_color": "#ffffff"
15 | }
16 | 


--------------------------------------------------------------------------------
/test/helpers/teardown.js:
--------------------------------------------------------------------------------
 1 | const os = require('os');
 2 | const path = require('path');
 3 | const fs = require('fs-extra');
 4 | 
 5 | const watchMode = process.argv.includes('--watch');
 6 | 
 7 | const DIR = path.join(os.tmpdir(), 'jest_puppeteer_global_setup');
 8 | 
 9 | module.exports = async () => {
10 |   if (!watchMode) {
11 |     global.SERVER.close();
12 |   }
13 | 
14 |   await fs.remove(DIR);
15 |   await global.BROWSER.close();
16 | };
17 | 


--------------------------------------------------------------------------------
/src/App.css:
--------------------------------------------------------------------------------
 1 | .App {
 2 |   text-align: center;
 3 | }
 4 | 
 5 | .App-logo {
 6 |   animation: App-logo-spin infinite 20s linear;
 7 |   height: 80px;
 8 | }
 9 | 
10 | .App-header {
11 |   background-color: #222;
12 |   height: 150px;
13 |   padding: 20px;
14 |   color: white;
15 | }
16 | 
17 | .App-title {
18 |   font-size: 1.5em;
19 | }
20 | 
21 | .App-intro {
22 |   font-size: large;
23 | }
24 | 
25 | @keyframes App-logo-spin {
26 |   from { transform: rotate(0deg); }
27 |   to { transform: rotate(360deg); }
28 | }
29 | 
30 | td {
31 |   border: 1px solid black;
32 |   height: 50px;
33 |   width: 50px;
34 | }


--------------------------------------------------------------------------------
/test/helpers/environment.js:
--------------------------------------------------------------------------------
 1 | const fs = require('fs');
 2 | const os = require('os');
 3 | const path = require('path');
 4 | const puppeteer = require('puppeteer');
 5 | const NodeEnvironment = require('jest-environment-node');
 6 | 
 7 | const DIR = path.join(os.tmpdir(), 'jest_puppeteer_global_setup');
 8 | 
 9 | module.exports = class PuppeteerEnvironment extends NodeEnvironment {
10 |   async setup() {
11 |     await super.setup();
12 | 
13 |     const browserWSEndpoint = fs.readFileSync(path.join(DIR, 'wsEndpoint'), 'utf8');
14 | 
15 |     if (!browserWSEndpoint) {
16 |       throw new Error('wsEndpoint not found');
17 |     }
18 | 
19 |     this.global.BROWSER = await puppeteer.connect({
20 |       browserWSEndpoint,
21 |     });
22 |   }
23 | };
24 | 


--------------------------------------------------------------------------------
/scripts/test.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | // Do this as the first thing so that any code reading it knows the right env.
 4 | process.env.BABEL_ENV = 'test';
 5 | process.env.NODE_ENV = 'test';
 6 | process.env.PUBLIC_URL = '';
 7 | 
 8 | // Makes the script crash on unhandled rejections instead of silently
 9 | // ignoring them. In the future, promise rejections that are not handled will
10 | // terminate the Node.js process with a non-zero exit code.
11 | process.on('unhandledRejection', err => {
12 |   throw err;
13 | });
14 | 
15 | // Ensure environment variables are read.
16 | require('../config/env');
17 | 
18 | const jest = require('jest');
19 | const argv = process.argv.slice(2);
20 | 
21 | // Watch unless on CI or in coverage mode
22 | if (!process.env.CI && argv.indexOf('--coverage') < 0) {
23 |   argv.push('--watch');
24 | }
25 | 
26 | 
27 | jest.run(argv);
28 | 


--------------------------------------------------------------------------------
/TESTING.md:
--------------------------------------------------------------------------------
 1 | # Testing terms / technologies
 2 | 
 3 | ### Browser tests / E2E
 4 | 
 5 | Technologies:
 6 | 
 7 | - Selenium based libraries (Protractor, Nightwatch etc.).
 8 | 
 9 | - Chrome devtools based (Puppeteer).
10 | 
11 | - Karma*
12 | 
13 | Tests are running in node environment, while production code is running on a real / headless browser.
14 | 
15 | Test use cases:
16 | 
17 | - browser dependent stuff (scrolling, measurements etc.)
18 | 
19 | - Navigation
20 | 
21 | - API calls
22 | 
23 | ### Component tests
24 | 
25 | Technologies:
26 | 
27 | Mocha / Jest
28 | 
29 | Running tests in node environment, using JSDOM to mimic the browser
30 | 
31 | Test use cases:
32 | 
33 | React components
34 | 
35 | ### Unit tests
36 | 
37 | Running tests on small units, using node environment
38 | 
39 | Test use cases:
40 | 
41 | Test specifig app logic
42 | 
43 | ### IT tests
44 | 
45 | Running tests on API endpoints, using node


--------------------------------------------------------------------------------
/src/Registration.js:
--------------------------------------------------------------------------------
 1 | import React, { Component } from 'react';
 2 | import PropTypes from 'prop-types';
 3 | 
 4 | export default class Registration extends Component {
 5 |   static propTypes = {
 6 |     onNewGame: PropTypes.func.isRequired,
 7 |   };
 8 |   constructor() {
 9 |     super();
10 |     this.state = {
11 |       p1Name: '',
12 |       p2Name: '',
13 |     };
14 |   }
15 |   render() {
16 |     return (
17 |       <div>
18 |         <input onChange={el => this.setState({ p1Name: el.target.value })} data-hook="p1-input" />
19 |         <input onChange={el => this.setState({ p2Name: el.target.value })} data-hook="p2-input" />
20 |         <button
21 |           onClick={() =>
22 |             this.props.onNewGame({ p1Name: this.state.p1Name, p2Name: this.state.p2Name })
23 |           }
24 |           data-hook="new-game"
25 |         >
26 |           New Game
27 |         </button>
28 |       </div>
29 |     );
30 |   }
31 | }
32 | 


--------------------------------------------------------------------------------
/test/App.driver.js:
--------------------------------------------------------------------------------
 1 | const appDriver = page => ({
 2 |   navigate: () => page.goto('http://localhost:3000'),
 3 |   newGame: async (player1, player2) => {
 4 |     await page.type('[data-hook="p1-input"]', player1);
 5 |     await page.type('[data-hook="p2-input"]', player2);
 6 |     await page.click('[data-hook="new-game"]');
 7 |   },
 8 |   getPlayer1Title: () => page.$eval('[data-hook="p1-name"]', el => el.innerText),
 9 |   getPlayer2Title: () => page.$eval('[data-hook="p2-name"]', el => el.innerText),
10 |   clickACellAt: index => page.$$eval('[data-hook="cell"]', (cells, i) => cells[i].click(), index),
11 |   getACellValueAt: index =>
12 |     page.$$eval('[data-hook="cell"]', (cells, i) => cells[i].innerText, index),
13 |   getWinnerMessage: () => page.$eval('[data-hook="winner-message"]', el => el.innerText),
14 |   hasWinner: async () => !!await page.$('[data-hook="winner-message"]'),
15 | });
16 | 
17 | module.exports = appDriver;
18 | 


--------------------------------------------------------------------------------
/test/helpers/setup.js:
--------------------------------------------------------------------------------
 1 | const os = require('os');
 2 | const path = require('path');
 3 | const fs = require('fs-extra');
 4 | const express = require('express');
 5 | const puppeteer = require('puppeteer');
 6 | 
 7 | const watchMode = process.argv.includes('--watch');
 8 | 
 9 | const DIR = path.join(os.tmpdir(), 'jest_puppeteer_global_setup');
10 | 
11 | module.exports = async () => {
12 |   if (!watchMode) {
13 |     await new Promise(resolve => {
14 |       const app = express();
15 | 
16 |       app.use(express.static(path.join(__dirname, '..', '..', 'build')));
17 |       app.use(express.static(path.join(__dirname, '..', '..', 'public')));
18 | 
19 |       global.SERVER = app.listen(3000, resolve);
20 |     });
21 |   }
22 | 
23 |   const browser = (global.BROWSER = await puppeteer.launch({
24 |     headless: true,
25 |     args: ['--no-sandbox'],
26 |   }));
27 | 
28 |   await fs.outputFile(path.join(DIR, 'wsEndpoint'), browser.wsEndpoint());
29 | };
30 | 


--------------------------------------------------------------------------------
/config/polyfills.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | if (typeof Promise === 'undefined') {
 4 |   // Rejection tracking prevents a common issue where React gets into an
 5 |   // inconsistent state due to an error, but it gets swallowed by a Promise,
 6 |   // and the user has no idea what causes React's erratic future behavior.
 7 |   require('promise/lib/rejection-tracking').enable();
 8 |   window.Promise = require('promise/lib/es6-extensions.js');
 9 | }
10 | 
11 | // fetch() polyfill for making API calls.
12 | require('whatwg-fetch');
13 | 
14 | // Object.assign() is commonly used with React.
15 | // It will use the native implementation if it's present and isn't buggy.
16 | Object.assign = require('object-assign');
17 | 
18 | // In tests, polyfill requestAnimationFrame since jsdom doesn't provide it yet.
19 | // We don't polyfill it in the browser--this is user's responsibility.
20 | if (process.env.NODE_ENV === 'test') {
21 |   require('raf').polyfill(global);
22 | }
23 | 


--------------------------------------------------------------------------------
/src/App.driver.js:
--------------------------------------------------------------------------------
 1 | import { mount } from 'enzyme';
 2 | 
 3 | const appDriver = () => {
 4 |   let wrapper;
 5 |   return {
 6 |     render: node => {
 7 |       wrapper = mount(node, { attachTo: document.createElement('div') });
 8 |       return wrapper;
 9 |     },
10 |     newGame: (p1Name, p2Name) => {
11 |       wrapper.find('[data-hook="p1-input"]').simulate('change', { target: { value: p1Name } });
12 |       wrapper.find('[data-hook="p2-input"]').simulate('change', { target: { value: p2Name } });
13 |       wrapper.find('[data-hook="new-game"]').simulate('click');
14 |     },
15 |     clickACellAt: index =>
16 |       wrapper
17 |         .find('[data-hook="cell"]')
18 |         .at(index)
19 |         .simulate('click'),
20 |     getACellAt: index =>
21 |       wrapper
22 |         .find('[data-hook="cell"]')
23 |         .at(index)
24 |         .text(),
25 |     getWinnerMessage: () => wrapper.find('[data-hook="winner-message"]').text(),
26 |   };
27 | };
28 | 
29 | export default appDriver;
30 | 


--------------------------------------------------------------------------------
/src/Game.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import PropTypes from 'prop-types';
 3 | 
 4 | const Game = ({ p1Name, p2Name, board, onCellClicked }) => {
 5 |   return (
 6 |     <div>
 7 |       <span data-hook="p1-name">{p1Name}</span>
 8 |       <span data-hook="p2-name">{p2Name}</span>
 9 |       <table role="grid">
10 |         <tbody>
11 |           {board.map((row, rIndex) => (
12 |             <tr key={rIndex}>
13 |               {row.map((cell, cIndex) => (
14 |                 <td
15 |                   key={cIndex}
16 |                   role="gridcell"
17 |                   data-hook="cell"
18 |                   onClick={() => onCellClicked(rIndex, cIndex)}
19 |                 >
20 |                   {cell}
21 |                 </td>
22 |               ))}
23 |             </tr>
24 |           ))}
25 |         </tbody>
26 |       </table>
27 |     </div>
28 |   );
29 | };
30 | 
31 | Game.propTypes = {
32 |   p1Name: PropTypes.string.isRequired,
33 |   p2Name: PropTypes.string.isRequired,
34 |   board: PropTypes.arrayOf(PropTypes.arrayOf(PropTypes.string)).isRequired,
35 |   onCellClicked: PropTypes.func.isRequired,
36 | };
37 | export default Game;
38 | 


--------------------------------------------------------------------------------
/src/App.spec.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import ReactDOM from 'react-dom';
 3 | import { configure } from 'enzyme';
 4 | import Adapter from 'enzyme-adapter-react-16';
 5 | import App from './App';
 6 | import appDriver from './App.driver';
 7 | 
 8 | configure({ adapter: new Adapter() });
 9 | let driver;
10 | beforeEach(() => (driver = appDriver()));
11 | 
12 | test('renders without crashing', () => {
13 |   const div = document.createElement('div');
14 |   ReactDOM.render(<App />, div);
15 |   ReactDOM.unmountComponentAtNode(div);
16 | });
17 | 
18 | test('should show "O" after second player clicks', () => {
19 |   const p1Name = 'Yaniv';
20 |   const p2Name = 'Computer';
21 |   driver.render(<App />);
22 |   driver.newGame(p1Name, p2Name);
23 |   driver.clickACellAt(0);
24 |   driver.clickACellAt(1);
25 |   expect(driver.getACellAt(1)).toBe('O');
26 | });
27 | 
28 | test('"O" should win the game', () => {
29 |   const p1Name = 'Yaniv';
30 |   const p2Name = 'Computer';
31 |   driver.render(<App />);
32 |   driver.newGame(p1Name, p2Name);
33 |   driver.clickACellAt(4);
34 |   driver.clickACellAt(0);
35 |   driver.clickACellAt(5);
36 |   driver.clickACellAt(1);
37 |   driver.clickACellAt(7);
38 |   driver.clickACellAt(2);
39 |   expect(driver.getWinnerMessage()).toBe(`${p2Name} won!`);
40 | });
41 | 


--------------------------------------------------------------------------------
/.eslintrc:
--------------------------------------------------------------------------------
 1 | {
 2 |   "extends": ["airbnb", "prettier"],
 3 |   "env": {
 4 |     "browser": true,
 5 |     "jest/globals": true
 6 |   },
 7 |   "parser": "babel-eslint",
 8 |   "plugins": [
 9 |     "jest",
10 |     "prettier"
11 |   ],
12 |   "globals": {
13 |     "monaco": true
14 |   },
15 |   "rules": {
16 |     "prettier/prettier": [
17 |       "error",
18 |       {
19 |         "bracketSpacing": true,
20 |         "printWidth": 100,
21 |         "singleQuote": true,
22 |         "trailingComma": "all"
23 |       }
24 |     ],
25 |     "react/no-array-index-key": "off",
26 |     "arrow-body-style": "off",
27 |     "class-methods-use-this": "off",
28 |     "consistent-return": "off",
29 |     "function-paren-newline": "off",
30 |     "global-require": "off",
31 |     "import/no-dynamic-require": "off",
32 |     "import/prefer-default-export": "off",
33 |     "jsx-a11y/no-static-element-interactions": "off",
34 |     "jsx-a11y/click-events-have-key-events": "off",
35 |     "no-case-declarations": "off",
36 |     "no-debugger": "off",
37 |     "no-console": "off",
38 |     "no-mixed-operators": "off",
39 |     "no-multi-assign": "off",
40 |     "no-multiple-empty-lines": ["error", { "max": 1, "maxEOF": 1 }],
41 |     "no-param-reassign": "off",
42 |     "no-return-assign": "off",
43 |     "no-plusplus": "off",
44 |     "no-use-before-define": "off",
45 |     "no-useless-concat": "off",
46 |     "react/jsx-filename-extension": "off",
47 |     "react/prop-types": "off"
48 |   }
49 | }


--------------------------------------------------------------------------------
/test/App.e2e.js:
--------------------------------------------------------------------------------
 1 | const appDriver = require('./App.driver');
 2 | 
 3 | describe('Tic Tac Toe', () => {
 4 |   let driver;
 5 |   let page;
 6 | 
 7 |   beforeEach(async () => {
 8 |     page = await global.BROWSER.newPage();
 9 |     driver = appDriver(page);
10 |     await driver.navigate();
11 |   });
12 | 
13 |   test('should start a new game', async () => {
14 |     const player1 = 'Yaniv';
15 |     const player2 = 'Computer';
16 |     await driver.newGame(player1, player2);
17 |     const p1Name = await driver.getPlayer1Title();
18 |     const p2Name = await driver.getPlayer2Title();
19 |     expect(p1Name).toBe(player1);
20 |     expect(p2Name).toBe(player2);
21 |   });
22 | 
23 |   test('should show "X" after first player clicks', async () => {
24 |     const player1 = 'Yaniv';
25 |     const player2 = 'Computer';
26 |     await driver.newGame(player1, player2);
27 |     expect(await driver.getACellValueAt(0)).toBe('');
28 |     await driver.clickACellAt(0);
29 |     expect(await driver.getACellValueAt(0)).toBe('X');
30 |   });
31 | 
32 |   test('first player should win the game', async () => {
33 |     const player1 = 'Yaniv';
34 |     const player2 = 'Computer';
35 |     await driver.newGame(player1, player2);
36 |     await driver.clickACellAt(0);
37 |     await driver.clickACellAt(3);
38 |     expect(await driver.hasWinner()).toBe(false);
39 |     await driver.clickACellAt(1);
40 |     await driver.clickACellAt(4);
41 |     await driver.clickACellAt(2);
42 |     expect(await driver.getWinnerMessage()).toBe(`${player1} won!`);
43 |   });
44 | });
45 | 


--------------------------------------------------------------------------------
/src/App.js:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import Registration from './Registration';
 3 | import Game from './Game';
 4 | import { gameStatus } from './gameService';
 5 | import './App.css';
 6 | 
 7 | class App extends React.Component {
 8 |   constructor() {
 9 |     super();
10 |     this.state = {
11 |       p1Name: '',
12 |       p2Name: '',
13 |       board: [['', '', ''], ['', '', ''], ['', '', '']],
14 |       winner: '',
15 |       currentPlayer: 'X',
16 |     };
17 |   }
18 |   onNewGame = ({ p1Name, p2Name }) => {
19 |     this.setState({ p1Name, p2Name });
20 |   };
21 | 
22 |   handleCellClick = (rIndex, cIndex) => {
23 |     const board = this.state.board.map(row => [...row]);
24 |     board[rIndex][cIndex] = this.state.currentPlayer;
25 |     if (gameStatus(board) === this.state.currentPlayer) {
26 |       this.setState({ winner: this.state.currentPlayer });
27 |     }
28 |     const nextPlayer = this.state.currentPlayer === 'X' ? 'O' : 'X';
29 |     this.setState({ board, currentPlayer: nextPlayer });
30 |   };
31 |   render() {
32 |     return (
33 |       <div className="App">
34 |         <Registration onNewGame={this.onNewGame} />
35 |         <Game
36 |           onCellClicked={this.handleCellClick}
37 |           board={this.state.board}
38 |           p1Name={this.state.p1Name}
39 |           p2Name={this.state.p2Name}
40 |         />
41 |         {this.state.winner && (
42 |           <div data-hook="winner-message">
43 |             {`${this.state.winner === 'X' ? this.state.p1Name : this.state.p2Name} won!`}
44 |           </div>
45 |         )}
46 |       </div>
47 |     );
48 |   }
49 | }
50 | export default App;
51 | 


--------------------------------------------------------------------------------
/public/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 |   <head>
 4 |     <meta charset="utf-8">
 5 |     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 6 |     <meta name="theme-color" content="#000000">
 7 |     <!--
 8 |       manifest.json provides metadata used when your web app is added to the
 9 |       homescreen on Android. See https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/
10 |     -->
11 |     <link rel="manifest" href="%PUBLIC_URL%/manifest.json">
12 |     <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
13 |     <!--
14 |       Notice the use of %PUBLIC_URL% in the tags above.
15 |       It will be replaced with the URL of the `public` folder during the build.
16 |       Only files inside the `public` folder can be referenced from the HTML.
17 | 
18 |       Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
19 |       work correctly both with client-side routing and a non-root public URL.
20 |       Learn how to configure a non-root public URL by running `npm run build`.
21 |     -->
22 |     <title>React App</title>
23 |   </head>
24 |   <body>
25 |     <noscript>
26 |       You need to enable JavaScript to run this app.
27 |     </noscript>
28 |     <div id="root"></div>
29 |     <!--
30 |       This HTML file is a template.
31 |       If you open it directly in the browser, you will see an empty page.
32 | 
33 |       You can add webfonts, meta tags, or analytics to this file.
34 |       The build step will place the bundled scripts into the <body> tag.
35 | 
36 |       To begin the development, run `npm start` or `yarn start`.
37 |       To create a production bundle, use `npm run build` or `yarn build`.
38 |     -->
39 |   </body>
40 | </html>
41 | 


--------------------------------------------------------------------------------
/config/paths.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | const path = require('path');
 4 | const fs = require('fs');
 5 | const url = require('url');
 6 | 
 7 | // Make sure any symlinks in the project folder are resolved:
 8 | // https://github.com/facebookincubator/create-react-app/issues/637
 9 | const appDirectory = fs.realpathSync(process.cwd());
10 | const resolveApp = relativePath => path.resolve(appDirectory, relativePath);
11 | 
12 | const envPublicUrl = process.env.PUBLIC_URL;
13 | 
14 | function ensureSlash(path, needsSlash) {
15 |   const hasSlash = path.endsWith('/');
16 |   if (hasSlash && !needsSlash) {
17 |     return path.substr(path, path.length - 1);
18 |   } else if (!hasSlash && needsSlash) {
19 |     return `${path}/`;
20 |   } else {
21 |     return path;
22 |   }
23 | }
24 | 
25 | const getPublicUrl = appPackageJson =>
26 |   envPublicUrl || require(appPackageJson).homepage;
27 | 
28 | // We use `PUBLIC_URL` environment variable or "homepage" field to infer
29 | // "public path" at which the app is served.
30 | // Webpack needs to know it to put the right <script> hrefs into HTML even in
31 | // single-page apps that may serve index.html for nested URLs like /todos/42.
32 | // We can't use a relative path in HTML because we don't want to load something
33 | // like /todos/42/static/js/bundle.7289d.js. We have to know the root.
34 | function getServedPath(appPackageJson) {
35 |   const publicUrl = getPublicUrl(appPackageJson);
36 |   const servedUrl =
37 |     envPublicUrl || (publicUrl ? url.parse(publicUrl).pathname : '/');
38 |   return ensureSlash(servedUrl, true);
39 | }
40 | 
41 | // config after eject: we're in ./config/
42 | module.exports = {
43 |   dotenv: resolveApp('.env'),
44 |   appBuild: resolveApp('build'),
45 |   appPublic: resolveApp('public'),
46 |   appHtml: resolveApp('public/index.html'),
47 |   appIndexJs: resolveApp('src/index.js'),
48 |   appPackageJson: resolveApp('package.json'),
49 |   appSrc: resolveApp('src'),
50 |   yarnLockFile: resolveApp('yarn.lock'),
51 |   testsSetup: resolveApp('src/setupTests.js'),
52 |   appNodeModules: resolveApp('node_modules'),
53 |   publicUrl: getPublicUrl(resolveApp('package.json')),
54 |   servedPath: getServedPath(resolveApp('package.json')),
55 | };
56 | 


--------------------------------------------------------------------------------
/src/logo.svg:
--------------------------------------------------------------------------------
1 | <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3">
2 |     <g fill="#61DAFB">
3 |         <path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/>
4 |         <circle cx="420.9" cy="296.5" r="45.7"/>
5 |         <path d="M520.5 78.1z"/>
6 |     </g>
7 | </svg>
8 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # React TDD Workshop
 2 | 
 3 | [![Build Status](https://travis-ci.org/yanivefraim/react-tdd-workshop.svg?branch=master)](https://travis-ci.org/yanivefraim/react-tdd-workshop)
 4 | 
 5 | 
 6 | WIP - This is the repo for my [React TDD Workshop](https://www.meetup.com/Kyiv-ReactJS-Meetup/events/247392848/?_cookie-check=5Otr21FDGjz27aUV)
 7 | 
 8 | Welcome to my React TDD workshop!
 9 | 
10 | 
11 | ## Getting started
12 | 
13 | ```bash
14 | npm i
15 | npm test
16 | ```
17 | 
18 | Watch mode:
19 | 
20 | Terminal 1:
21 | 
22 | ```bash
23 | npm start
24 | ```
25 | 
26 | Terminal 2:
27 | 
28 | ```bash
29 | npm run test:watch
30 | ```
31 | 
32 | ## What is this workshop about?
33 | 
34 | We will be building the [Tic Tac Toe](https://en.wikipedia.org/wiki/Tic-tac-toe) game, using React + Jest + Puppeteer, all TDD, (almost) without openning the browser!
35 | 
36 | The end result will be something like this:
37 | 
38 | <img width="241" src ="public/tic-tac-toe.png" />
39 | 
40 | ## Workshop
41 | 
42 | ### What we had so far (or: the parts that I'm showing during the workshop)
43 | 
44 | 1. Browser test for starting a new game.
45 | 2. Browser test for displaying 'X' after first user click.
46 | 3. Browser test for 'X' user winning the game.
47 | 4. Component test for displaying 'O' after second user click.
48 | 5. Component test for 'O' user winning the game.
49 | 6. Refactor winning logic to a separate method + add unit test for it.
50 | 
51 | ### Workshop tasks
52 | 
53 | 1. Complete game winning logic: write unit tests for the different game winning scenarios (all rows, columns/diagonals/tie).
54 | 2. Write a component test verifiying a user cannot press a non empty cell.
55 | 3. Write a component test for a tie (show a "It's a tie!" message).
56 | 4. Write a browser/component test for marking next user in a special color (show 'X' and 'O' users and mark next user in special color).
57 | 5. Write a browser/component test for hiding registration form after game starts.
58 | 6. Write a browser/component test for hiding game board before game starts.
59 | 7. Bonus: Write a browser test for user saving / loading existing game state (use local storage for that)
60 | 7. Bonus: Write a browser test for displaying the number of wins next to each user: Win a game. Press a "new game" button, and win the game again. (Use local storage for that as well)
61 | 
62 | ### Interesting resources
63 | 
64 | - [jest-puppeteer](https://github.com/smooth-code/jest-puppeteer) - (almost) zero configuration preset to run your tests with Jest and [Puppeteer](https://github.com/GoogleChrome/puppeteer)
65 | - [enzyme](https://github.com/airbnb/enzyme)
66 | - [jsdom](https://github.com/jsdom/jsdom)
67 | - [jest](https://github.com/facebook/jest)
68 | - Jest Projects (setup multi environments on the same project. See [here](https://github.com/yanivefraim/react-tdd-workshop/blob/master/package.json#L68) for example
69 | - [Applitools eyes](https://applitools.com/).
70 | - [eyes.it](https://github.com/wix/eyes.it) - eyes for protractor
71 | - Puppeteer Egghead [course](https://egghead.io/courses/end-to-end-testing-with-google-s-puppeteer-and-jest)
72 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
  1 | {
  2 |   "name": "react-tdd-workshop",
  3 |   "version": "0.1.0",
  4 |   "private": true,
  5 |   "dependencies": {
  6 |     "autoprefixer": "7.1.6",
  7 |     "babel-core": "6.26.0",
  8 |     "babel-eslint": "7.2.3",
  9 |     "babel-jest": "20.0.3",
 10 |     "babel-loader": "7.1.2",
 11 |     "babel-preset-react-app": "^3.1.1",
 12 |     "babel-runtime": "6.26.0",
 13 |     "case-sensitive-paths-webpack-plugin": "2.1.1",
 14 |     "chalk": "1.1.3",
 15 |     "css-loader": "0.28.7",
 16 |     "dotenv": "4.0.0",
 17 |     "dotenv-expand": "4.2.0",
 18 |     "enzyme": "^3.3.0",
 19 |     "enzyme-adapter-react-16": "^1.1.1",
 20 |     "eslint": "4.10.0",
 21 |     "eslint-config-airbnb": "^16.1.0",
 22 |     "eslint-config-airbnb-base": "^12.1.0",
 23 |     "eslint-config-prettier": "^2.9.0",
 24 |     "eslint-config-react-app": "^2.1.0",
 25 |     "eslint-loader": "1.9.0",
 26 |     "eslint-plugin-flowtype": "2.39.1",
 27 |     "eslint-plugin-import": "2.8.0",
 28 |     "eslint-plugin-jest": "^21.13.0",
 29 |     "eslint-plugin-jsx-a11y": "5.1.1",
 30 |     "eslint-plugin-prettier": "^2.6.0",
 31 |     "eslint-plugin-react": "7.4.0",
 32 |     "express": "^4.16.2",
 33 |     "extract-text-webpack-plugin": "3.0.2",
 34 |     "file-loader": "1.1.5",
 35 |     "fs-extra": "3.0.1",
 36 |     "html-webpack-plugin": "2.29.0",
 37 |     "jest": "^22.0.4",
 38 |     "jest-environment-node": "^22.4.1",
 39 |     "object-assign": "4.1.1",
 40 |     "postcss-flexbugs-fixes": "3.2.0",
 41 |     "postcss-loader": "2.0.8",
 42 |     "prettier": "^1.11.1",
 43 |     "promise": "8.0.1",
 44 |     "prop-types": "^15.6.1",
 45 |     "puppeteer": "^1.1.1",
 46 |     "raf": "3.4.0",
 47 |     "react": "^16.2.0",
 48 |     "react-dev-utils": "^5.0.0",
 49 |     "react-dom": "^16.2.0",
 50 |     "style-loader": "0.19.0",
 51 |     "sw-precache-webpack-plugin": "0.11.4",
 52 |     "url-loader": "0.6.2",
 53 |     "webpack": "3.8.1",
 54 |     "webpack-dev-server": "2.9.4",
 55 |     "webpack-manifest-plugin": "1.3.2",
 56 |     "whatwg-fetch": "2.0.3"
 57 |   },
 58 |   "scripts": {
 59 |     "start": "node scripts/start.js",
 60 |     "pretest": "node scripts/build.js",
 61 |     "test": "jest",
 62 |     "test:watch": "jest --watch",
 63 |     "lint": "npm run lint:js && npm run lint:css",
 64 |     "lint:js": "eslint .",
 65 |     "lint:css": "stylelint 'src/**/*.{css,scss}'"
 66 |   },
 67 |   "jest": {
 68 |     "projects": [
 69 |       {
 70 |         "displayName": "e2e",
 71 |         "testEnvironment": "./test/helpers/environment.js",
 72 |         "testMatch": [
 73 |           "<rootDir>/**/*.e2e.js"
 74 |         ],
 75 |         "setupTestFrameworkScriptFile": "./test/helpers/setupFramework.js"
 76 |       },
 77 |       {
 78 |         "displayName": "jsdom",
 79 |         "testEnvironment": "jsdom",
 80 |         "testMatch": [
 81 |           "<rootDir>/**/*.spec.js"
 82 |         ],
 83 |         "transform": {
 84 |           "^.+\\.(js|jsx|mjs)$": "<rootDir>/node_modules/babel-jest",
 85 |           "^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
 86 |           "^(?!.*\\.(js|jsx|mjs|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
 87 |         }
 88 |       },
 89 |       {
 90 |         "displayName": "unit",
 91 |         "testEnvironment": "node",
 92 |         "testMatch": [
 93 |           "<rootDir>/**/*.unit.js"
 94 |         ]
 95 |       }
 96 |     ],
 97 |     "globalSetup": "./test/helpers/setup.js",
 98 |     "globalTeardown": "./test/helpers/teardown.js"
 99 |   },
100 |   "babel": {
101 |     "presets": [
102 |       "react-app"
103 |     ]
104 |   },
105 |   "eslintConfig": {
106 |     "extends": "react-app"
107 |   }
108 | }
109 | 


--------------------------------------------------------------------------------
/config/env.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | const fs = require('fs');
 4 | const path = require('path');
 5 | const paths = require('./paths');
 6 | 
 7 | // Make sure that including paths.js after env.js will read .env variables.
 8 | delete require.cache[require.resolve('./paths')];
 9 | 
10 | const NODE_ENV = process.env.NODE_ENV;
11 | if (!NODE_ENV) {
12 |   throw new Error(
13 |     'The NODE_ENV environment variable is required but was not specified.'
14 |   );
15 | }
16 | 
17 | // https://github.com/bkeepers/dotenv#what-other-env-files-can-i-use
18 | var dotenvFiles = [
19 |   `${paths.dotenv}.${NODE_ENV}.local`,
20 |   `${paths.dotenv}.${NODE_ENV}`,
21 |   // Don't include `.env.local` for `test` environment
22 |   // since normally you expect tests to produce the same
23 |   // results for everyone
24 |   NODE_ENV !== 'test' && `${paths.dotenv}.local`,
25 |   paths.dotenv,
26 | ].filter(Boolean);
27 | 
28 | // Load environment variables from .env* files. Suppress warnings using silent
29 | // if this file is missing. dotenv will never modify any environment variables
30 | // that have already been set.  Variable expansion is supported in .env files.
31 | // https://github.com/motdotla/dotenv
32 | // https://github.com/motdotla/dotenv-expand
33 | dotenvFiles.forEach(dotenvFile => {
34 |   if (fs.existsSync(dotenvFile)) {
35 |     require('dotenv-expand')(
36 |       require('dotenv').config({
37 |         path: dotenvFile,
38 |       })
39 |     );
40 |   }
41 | });
42 | 
43 | // We support resolving modules according to `NODE_PATH`.
44 | // This lets you use absolute paths in imports inside large monorepos:
45 | // https://github.com/facebookincubator/create-react-app/issues/253.
46 | // It works similar to `NODE_PATH` in Node itself:
47 | // https://nodejs.org/api/modules.html#modules_loading_from_the_global_folders
48 | // Note that unlike in Node, only *relative* paths from `NODE_PATH` are honored.
49 | // Otherwise, we risk importing Node.js core modules into an app instead of Webpack shims.
50 | // https://github.com/facebookincubator/create-react-app/issues/1023#issuecomment-265344421
51 | // We also resolve them to make sure all tools using them work consistently.
52 | const appDirectory = fs.realpathSync(process.cwd());
53 | process.env.NODE_PATH = (process.env.NODE_PATH || '')
54 |   .split(path.delimiter)
55 |   .filter(folder => folder && !path.isAbsolute(folder))
56 |   .map(folder => path.resolve(appDirectory, folder))
57 |   .join(path.delimiter);
58 | 
59 | // Grab NODE_ENV and REACT_APP_* environment variables and prepare them to be
60 | // injected into the application via DefinePlugin in Webpack configuration.
61 | const REACT_APP = /^REACT_APP_/i;
62 | 
63 | function getClientEnvironment(publicUrl) {
64 |   const raw = Object.keys(process.env)
65 |     .filter(key => REACT_APP.test(key))
66 |     .reduce(
67 |       (env, key) => {
68 |         env[key] = process.env[key];
69 |         return env;
70 |       },
71 |       {
72 |         // Useful for determining whether we’re running in production mode.
73 |         // Most importantly, it switches React into the correct mode.
74 |         NODE_ENV: process.env.NODE_ENV || 'development',
75 |         // Useful for resolving the correct path to static assets in `public`.
76 |         // For example, <img src={process.env.PUBLIC_URL + '/img/logo.png'} />.
77 |         // This should only be used as an escape hatch. Normally you would put
78 |         // images into the `src` and `import` them in code to get their paths.
79 |         PUBLIC_URL: publicUrl,
80 |       }
81 |     );
82 |   // Stringify all values so we can feed into Webpack DefinePlugin
83 |   const stringified = {
84 |     'process.env': Object.keys(raw).reduce((env, key) => {
85 |       env[key] = JSON.stringify(raw[key]);
86 |       return env;
87 |     }, {}),
88 |   };
89 | 
90 |   return { raw, stringified };
91 | }
92 | 
93 | module.exports = getClientEnvironment;
94 | 


--------------------------------------------------------------------------------
/scripts/start.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | // Do this as the first thing so that any code reading it knows the right env.
  4 | process.env.BABEL_ENV = 'development';
  5 | process.env.NODE_ENV = 'development';
  6 | 
  7 | // Makes the script crash on unhandled rejections instead of silently
  8 | // ignoring them. In the future, promise rejections that are not handled will
  9 | // terminate the Node.js process with a non-zero exit code.
 10 | process.on('unhandledRejection', err => {
 11 |   throw err;
 12 | });
 13 | 
 14 | // Ensure environment variables are read.
 15 | require('../config/env');
 16 | 
 17 | const fs = require('fs');
 18 | const chalk = require('chalk');
 19 | const webpack = require('webpack');
 20 | const WebpackDevServer = require('webpack-dev-server');
 21 | const clearConsole = require('react-dev-utils/clearConsole');
 22 | const checkRequiredFiles = require('react-dev-utils/checkRequiredFiles');
 23 | const {
 24 |   choosePort,
 25 |   createCompiler,
 26 |   prepareProxy,
 27 |   prepareUrls,
 28 | } = require('react-dev-utils/WebpackDevServerUtils');
 29 | const openBrowser = require('react-dev-utils/openBrowser');
 30 | const paths = require('../config/paths');
 31 | const config = require('../config/webpack.config.dev');
 32 | const createDevServerConfig = require('../config/webpackDevServer.config');
 33 | 
 34 | const useYarn = fs.existsSync(paths.yarnLockFile);
 35 | const isInteractive = process.stdout.isTTY;
 36 | 
 37 | // Warn and crash if required files are missing
 38 | if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
 39 |   process.exit(1);
 40 | }
 41 | 
 42 | // Tools like Cloud9 rely on this.
 43 | const DEFAULT_PORT = parseInt(process.env.PORT, 10) || 3000;
 44 | const HOST = process.env.HOST || '0.0.0.0';
 45 | 
 46 | if (process.env.HOST) {
 47 |   console.log(
 48 |     chalk.cyan(
 49 |       `Attempting to bind to HOST environment variable: ${chalk.yellow(
 50 |         chalk.bold(process.env.HOST)
 51 |       )}`
 52 |     )
 53 |   );
 54 |   console.log(
 55 |     `If this was unintentional, check that you haven't mistakenly set it in your shell.`
 56 |   );
 57 |   console.log(`Learn more here: ${chalk.yellow('http://bit.ly/2mwWSwH')}`);
 58 |   console.log();
 59 | }
 60 | 
 61 | // We attempt to use the default port but if it is busy, we offer the user to
 62 | // run on a different port. `choosePort()` Promise resolves to the next free port.
 63 | choosePort(HOST, DEFAULT_PORT)
 64 |   .then(port => {
 65 |     if (port == null) {
 66 |       // We have not found a port.
 67 |       return;
 68 |     }
 69 |     const protocol = process.env.HTTPS === 'true' ? 'https' : 'http';
 70 |     const appName = require(paths.appPackageJson).name;
 71 |     const urls = prepareUrls(protocol, HOST, port);
 72 |     // Create a webpack compiler that is configured with custom messages.
 73 |     const compiler = createCompiler(webpack, config, appName, urls, useYarn);
 74 |     // Load proxy config
 75 |     const proxySetting = require(paths.appPackageJson).proxy;
 76 |     const proxyConfig = prepareProxy(proxySetting, paths.appPublic);
 77 |     // Serve webpack assets generated by the compiler over a web sever.
 78 |     const serverConfig = createDevServerConfig(
 79 |       proxyConfig,
 80 |       urls.lanUrlForConfig
 81 |     );
 82 |     const devServer = new WebpackDevServer(compiler, serverConfig);
 83 |     // Launch WebpackDevServer.
 84 |     devServer.listen(port, HOST, err => {
 85 |       if (err) {
 86 |         return console.log(err);
 87 |       }
 88 |       if (isInteractive) {
 89 |         clearConsole();
 90 |       }
 91 |       console.log(chalk.cyan('Starting the development server...\n'));
 92 |       openBrowser(urls.localUrlForBrowser);
 93 |     });
 94 | 
 95 |     ['SIGINT', 'SIGTERM'].forEach(function(sig) {
 96 |       process.on(sig, function() {
 97 |         devServer.close();
 98 |         process.exit();
 99 |       });
100 |     });
101 |   })
102 |   .catch(err => {
103 |     if (err && err.message) {
104 |       console.log(err.message);
105 |     }
106 |     process.exit(1);
107 |   });
108 | 


--------------------------------------------------------------------------------
/src/registerServiceWorker.js:
--------------------------------------------------------------------------------
  1 | // In production, we register a service worker to serve assets from local cache.
  2 | 
  3 | // This lets the app load faster on subsequent visits in production, and gives
  4 | // it offline capabilities. However, it also means that developers (and users)
  5 | // will only see deployed updates on the "N+1" visit to a page, since previously
  6 | // cached resources are updated in the background.
  7 | 
  8 | // To learn more about the benefits of this model, read https://goo.gl/KwvDNy.
  9 | // This link also includes instructions on opting out of this behavior.
 10 | 
 11 | const isLocalhost = Boolean(
 12 |   window.location.hostname === 'localhost' ||
 13 |     // [::1] is the IPv6 localhost address.
 14 |     window.location.hostname === '[::1]' ||
 15 |     // 127.0.0.1/8 is considered localhost for IPv4.
 16 |     window.location.hostname.match(/^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/),
 17 | );
 18 | 
 19 | export default function register() {
 20 |   if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
 21 |     // The URL constructor is available in all browsers that support SW.
 22 |     const publicUrl = new URL(process.env.PUBLIC_URL, window.location);
 23 |     if (publicUrl.origin !== window.location.origin) {
 24 |       // Our service worker won't work if PUBLIC_URL is on a different origin
 25 |       // from what our page is served on. This might happen if a CDN is used to
 26 |       // serve assets; see https://github.com/facebookincubator/create-react-app/issues/2374
 27 |       return;
 28 |     }
 29 | 
 30 |     window.addEventListener('load', () => {
 31 |       const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
 32 | 
 33 |       if (isLocalhost) {
 34 |         // This is running on localhost. Lets check if a service worker still exists or not.
 35 |         checkValidServiceWorker(swUrl);
 36 | 
 37 |         // Add some additional logging to localhost, pointing developers to the
 38 |         // service worker/PWA documentation.
 39 |         navigator.serviceWorker.ready.then(() => {
 40 |           console.log(
 41 |             'This web app is being served cache-first by a service ' +
 42 |               'worker. To learn more, visit https://goo.gl/SC7cgQ',
 43 |           );
 44 |         });
 45 |       } else {
 46 |         // Is not local host. Just register service worker
 47 |         registerValidSW(swUrl);
 48 |       }
 49 |     });
 50 |   }
 51 | }
 52 | 
 53 | function registerValidSW(swUrl) {
 54 |   navigator.serviceWorker
 55 |     .register(swUrl)
 56 |     .then(registration => {
 57 |       registration.onupdatefound = () => {
 58 |         const installingWorker = registration.installing;
 59 |         installingWorker.onstatechange = () => {
 60 |           if (installingWorker.state === 'installed') {
 61 |             if (navigator.serviceWorker.controller) {
 62 |               // At this point, the old content will have been purged and
 63 |               // the fresh content will have been added to the cache.
 64 |               // It's the perfect time to display a "New content is
 65 |               // available; please refresh." message in your web app.
 66 |               console.log('New content is available; please refresh.');
 67 |             } else {
 68 |               // At this point, everything has been precached.
 69 |               // It's the perfect time to display a
 70 |               // "Content is cached for offline use." message.
 71 |               console.log('Content is cached for offline use.');
 72 |             }
 73 |           }
 74 |         };
 75 |       };
 76 |     })
 77 |     .catch(error => {
 78 |       console.error('Error during service worker registration:', error);
 79 |     });
 80 | }
 81 | 
 82 | function checkValidServiceWorker(swUrl) {
 83 |   // Check if the service worker can be found. If it can't reload the page.
 84 |   fetch(swUrl)
 85 |     .then(response => {
 86 |       // Ensure service worker exists, and that we really are getting a JS file.
 87 |       if (
 88 |         response.status === 404 ||
 89 |         response.headers.get('content-type').indexOf('javascript') === -1
 90 |       ) {
 91 |         // No service worker found. Probably a different app. Reload the page.
 92 |         navigator.serviceWorker.ready.then(registration => {
 93 |           registration.unregister().then(() => {
 94 |             window.location.reload();
 95 |           });
 96 |         });
 97 |       } else {
 98 |         // Service worker found. Proceed as normal.
 99 |         registerValidSW(swUrl);
100 |       }
101 |     })
102 |     .catch(() => {
103 |       console.log('No internet connection found. App is running in offline mode.');
104 |     });
105 | }
106 | 
107 | export function unregister() {
108 |   if ('serviceWorker' in navigator) {
109 |     navigator.serviceWorker.ready.then(registration => {
110 |       registration.unregister();
111 |     });
112 |   }
113 | }
114 | 


--------------------------------------------------------------------------------
/scripts/build.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | // Do this as the first thing so that any code reading it knows the right env.
  4 | process.env.BABEL_ENV = 'production';
  5 | process.env.NODE_ENV = 'production';
  6 | 
  7 | // Makes the script crash on unhandled rejections instead of silently
  8 | // ignoring them. In the future, promise rejections that are not handled will
  9 | // terminate the Node.js process with a non-zero exit code.
 10 | process.on('unhandledRejection', err => {
 11 |   throw err;
 12 | });
 13 | 
 14 | // Ensure environment variables are read.
 15 | require('../config/env');
 16 | 
 17 | const path = require('path');
 18 | const chalk = require('chalk');
 19 | const fs = require('fs-extra');
 20 | const webpack = require('webpack');
 21 | const config = require('../config/webpack.config.prod');
 22 | const paths = require('../config/paths');
 23 | const checkRequiredFiles = require('react-dev-utils/checkRequiredFiles');
 24 | const formatWebpackMessages = require('react-dev-utils/formatWebpackMessages');
 25 | const printHostingInstructions = require('react-dev-utils/printHostingInstructions');
 26 | const FileSizeReporter = require('react-dev-utils/FileSizeReporter');
 27 | const printBuildError = require('react-dev-utils/printBuildError');
 28 | 
 29 | const measureFileSizesBeforeBuild =
 30 |   FileSizeReporter.measureFileSizesBeforeBuild;
 31 | const printFileSizesAfterBuild = FileSizeReporter.printFileSizesAfterBuild;
 32 | const useYarn = fs.existsSync(paths.yarnLockFile);
 33 | 
 34 | // These sizes are pretty large. We'll warn for bundles exceeding them.
 35 | const WARN_AFTER_BUNDLE_GZIP_SIZE = 512 * 1024;
 36 | const WARN_AFTER_CHUNK_GZIP_SIZE = 1024 * 1024;
 37 | 
 38 | // Warn and crash if required files are missing
 39 | if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
 40 |   process.exit(1);
 41 | }
 42 | 
 43 | // First, read the current file sizes in build directory.
 44 | // This lets us display how much they changed later.
 45 | measureFileSizesBeforeBuild(paths.appBuild)
 46 |   .then(previousFileSizes => {
 47 |     // Remove all content but keep the directory so that
 48 |     // if you're in it, you don't end up in Trash
 49 |     fs.emptyDirSync(paths.appBuild);
 50 |     // Merge with the public folder
 51 |     copyPublicFolder();
 52 |     // Start the webpack build
 53 |     return build(previousFileSizes);
 54 |   })
 55 |   .then(
 56 |     ({ stats, previousFileSizes, warnings }) => {
 57 |       if (warnings.length) {
 58 |         console.log(chalk.yellow('Compiled with warnings.\n'));
 59 |         console.log(warnings.join('\n\n'));
 60 |         console.log(
 61 |           '\nSearch for the ' +
 62 |             chalk.underline(chalk.yellow('keywords')) +
 63 |             ' to learn more about each warning.'
 64 |         );
 65 |         console.log(
 66 |           'To ignore, add ' +
 67 |             chalk.cyan('// eslint-disable-next-line') +
 68 |             ' to the line before.\n'
 69 |         );
 70 |       } else {
 71 |         console.log(chalk.green('Compiled successfully.\n'));
 72 |       }
 73 | 
 74 |       console.log('File sizes after gzip:\n');
 75 |       printFileSizesAfterBuild(
 76 |         stats,
 77 |         previousFileSizes,
 78 |         paths.appBuild,
 79 |         WARN_AFTER_BUNDLE_GZIP_SIZE,
 80 |         WARN_AFTER_CHUNK_GZIP_SIZE
 81 |       );
 82 |       console.log();
 83 | 
 84 |       const appPackage = require(paths.appPackageJson);
 85 |       const publicUrl = paths.publicUrl;
 86 |       const publicPath = config.output.publicPath;
 87 |       const buildFolder = path.relative(process.cwd(), paths.appBuild);
 88 |       printHostingInstructions(
 89 |         appPackage,
 90 |         publicUrl,
 91 |         publicPath,
 92 |         buildFolder,
 93 |         useYarn
 94 |       );
 95 |     },
 96 |     err => {
 97 |       console.log(chalk.red('Failed to compile.\n'));
 98 |       printBuildError(err);
 99 |       process.exit(1);
100 |     }
101 |   );
102 | 
103 | // Create the production build and print the deployment instructions.
104 | function build(previousFileSizes) {
105 |   console.log('Creating an optimized production build...');
106 | 
107 |   let compiler = webpack(config);
108 |   return new Promise((resolve, reject) => {
109 |     compiler.run((err, stats) => {
110 |       if (err) {
111 |         return reject(err);
112 |       }
113 |       const messages = formatWebpackMessages(stats.toJson({}, true));
114 |       if (messages.errors.length) {
115 |         // Only keep the first error. Others are often indicative
116 |         // of the same problem, but confuse the reader with noise.
117 |         if (messages.errors.length > 1) {
118 |           messages.errors.length = 1;
119 |         }
120 |         return reject(new Error(messages.errors.join('\n\n')));
121 |       }
122 |       if (
123 |         process.env.CI &&
124 |         (typeof process.env.CI !== 'string' ||
125 |           process.env.CI.toLowerCase() !== 'false') &&
126 |         messages.warnings.length
127 |       ) {
128 |         console.log(
129 |           chalk.yellow(
130 |             '\nTreating warnings as errors because process.env.CI = true.\n' +
131 |               'Most CI servers set it automatically.\n'
132 |           )
133 |         );
134 |         return reject(new Error(messages.warnings.join('\n\n')));
135 |       }
136 |       return resolve({
137 |         stats,
138 |         previousFileSizes,
139 |         warnings: messages.warnings,
140 |       });
141 |     });
142 |   });
143 | }
144 | 
145 | function copyPublicFolder() {
146 |   fs.copySync(paths.appPublic, paths.appBuild, {
147 |     dereference: true,
148 |     filter: file => file !== paths.appHtml,
149 |   });
150 | }
151 | 


--------------------------------------------------------------------------------
/config/webpackDevServer.config.js:
--------------------------------------------------------------------------------
 1 | 'use strict';
 2 | 
 3 | const errorOverlayMiddleware = require('react-dev-utils/errorOverlayMiddleware');
 4 | const noopServiceWorkerMiddleware = require('react-dev-utils/noopServiceWorkerMiddleware');
 5 | const ignoredFiles = require('react-dev-utils/ignoredFiles');
 6 | const config = require('./webpack.config.dev');
 7 | const paths = require('./paths');
 8 | 
 9 | const protocol = process.env.HTTPS === 'true' ? 'https' : 'http';
10 | const host = process.env.HOST || '0.0.0.0';
11 | 
12 | module.exports = function(proxy, allowedHost) {
13 |   return {
14 |     // WebpackDevServer 2.4.3 introduced a security fix that prevents remote
15 |     // websites from potentially accessing local content through DNS rebinding:
16 |     // https://github.com/webpack/webpack-dev-server/issues/887
17 |     // https://medium.com/webpack/webpack-dev-server-middleware-security-issues-1489d950874a
18 |     // However, it made several existing use cases such as development in cloud
19 |     // environment or subdomains in development significantly more complicated:
20 |     // https://github.com/facebookincubator/create-react-app/issues/2271
21 |     // https://github.com/facebookincubator/create-react-app/issues/2233
22 |     // While we're investigating better solutions, for now we will take a
23 |     // compromise. Since our WDS configuration only serves files in the `public`
24 |     // folder we won't consider accessing them a vulnerability. However, if you
25 |     // use the `proxy` feature, it gets more dangerous because it can expose
26 |     // remote code execution vulnerabilities in backends like Django and Rails.
27 |     // So we will disable the host check normally, but enable it if you have
28 |     // specified the `proxy` setting. Finally, we let you override it if you
29 |     // really know what you're doing with a special environment variable.
30 |     disableHostCheck:
31 |       !proxy || process.env.DANGEROUSLY_DISABLE_HOST_CHECK === 'true',
32 |     // Enable gzip compression of generated files.
33 |     compress: true,
34 |     // Silence WebpackDevServer's own logs since they're generally not useful.
35 |     // It will still show compile warnings and errors with this setting.
36 |     clientLogLevel: 'none',
37 |     // By default WebpackDevServer serves physical files from current directory
38 |     // in addition to all the virtual build products that it serves from memory.
39 |     // This is confusing because those files won’t automatically be available in
40 |     // production build folder unless we copy them. However, copying the whole
41 |     // project directory is dangerous because we may expose sensitive files.
42 |     // Instead, we establish a convention that only files in `public` directory
43 |     // get served. Our build script will copy `public` into the `build` folder.
44 |     // In `index.html`, you can get URL of `public` folder with %PUBLIC_URL%:
45 |     // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
46 |     // In JavaScript code, you can access it with `process.env.PUBLIC_URL`.
47 |     // Note that we only recommend to use `public` folder as an escape hatch
48 |     // for files like `favicon.ico`, `manifest.json`, and libraries that are
49 |     // for some reason broken when imported through Webpack. If you just want to
50 |     // use an image, put it in `src` and `import` it from JavaScript instead.
51 |     contentBase: paths.appPublic,
52 |     // By default files from `contentBase` will not trigger a page reload.
53 |     watchContentBase: true,
54 |     // Enable hot reloading server. It will provide /sockjs-node/ endpoint
55 |     // for the WebpackDevServer client so it can learn when the files were
56 |     // updated. The WebpackDevServer client is included as an entry point
57 |     // in the Webpack development configuration. Note that only changes
58 |     // to CSS are currently hot reloaded. JS changes will refresh the browser.
59 |     hot: true,
60 |     // It is important to tell WebpackDevServer to use the same "root" path
61 |     // as we specified in the config. In development, we always serve from /.
62 |     publicPath: config.output.publicPath,
63 |     // WebpackDevServer is noisy by default so we emit custom message instead
64 |     // by listening to the compiler events with `compiler.plugin` calls above.
65 |     quiet: true,
66 |     // Reportedly, this avoids CPU overload on some systems.
67 |     // https://github.com/facebookincubator/create-react-app/issues/293
68 |     // src/node_modules is not ignored to support absolute imports
69 |     // https://github.com/facebookincubator/create-react-app/issues/1065
70 |     watchOptions: {
71 |       ignored: ignoredFiles(paths.appSrc),
72 |     },
73 |     // Enable HTTPS if the HTTPS environment variable is set to 'true'
74 |     https: protocol === 'https',
75 |     host: host,
76 |     overlay: false,
77 |     historyApiFallback: {
78 |       // Paths with dots should still use the history fallback.
79 |       // See https://github.com/facebookincubator/create-react-app/issues/387.
80 |       disableDotRule: true,
81 |     },
82 |     public: allowedHost,
83 |     proxy,
84 |     before(app) {
85 |       // This lets us open files from the runtime error overlay.
86 |       app.use(errorOverlayMiddleware());
87 |       // This service worker file is effectively a 'no-op' that will reset any
88 |       // previous service worker registered for the same host:port combination.
89 |       // We do this in development to avoid hitting the production cache if
90 |       // it used the same host and port.
91 |       // https://github.com/facebookincubator/create-react-app/issues/2272#issuecomment-302832432
92 |       app.use(noopServiceWorkerMiddleware());
93 |     },
94 |   };
95 | };
96 | 


--------------------------------------------------------------------------------
/config/webpack.config.dev.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | const autoprefixer = require('autoprefixer');
  4 | const path = require('path');
  5 | const webpack = require('webpack');
  6 | const HtmlWebpackPlugin = require('html-webpack-plugin');
  7 | const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
  8 | const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
  9 | const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin');
 10 | const eslintFormatter = require('react-dev-utils/eslintFormatter');
 11 | const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
 12 | const getClientEnvironment = require('./env');
 13 | const paths = require('./paths');
 14 | 
 15 | // Webpack uses `publicPath` to determine where the app is being served from.
 16 | // In development, we always serve from the root. This makes config easier.
 17 | const publicPath = '/';
 18 | // `publicUrl` is just like `publicPath`, but we will provide it to our app
 19 | // as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
 20 | // Omit trailing slash as %PUBLIC_PATH%/xyz looks better than %PUBLIC_PATH%xyz.
 21 | const publicUrl = '';
 22 | // Get environment variables to inject into our app.
 23 | const env = getClientEnvironment(publicUrl);
 24 | 
 25 | // This is the development configuration.
 26 | // It is focused on developer experience and fast rebuilds.
 27 | // The production configuration is different and lives in a separate file.
 28 | module.exports = {
 29 |   // You may want 'eval' instead if you prefer to see the compiled output in DevTools.
 30 |   // See the discussion in https://github.com/facebookincubator/create-react-app/issues/343.
 31 |   devtool: 'cheap-module-source-map',
 32 |   // These are the "entry points" to our application.
 33 |   // This means they will be the "root" imports that are included in JS bundle.
 34 |   // The first two entry points enable "hot" CSS and auto-refreshes for JS.
 35 |   entry: [
 36 |     // We ship a few polyfills by default:
 37 |     require.resolve('./polyfills'),
 38 |     // Include an alternative client for WebpackDevServer. A client's job is to
 39 |     // connect to WebpackDevServer by a socket and get notified about changes.
 40 |     // When you save a file, the client will either apply hot updates (in case
 41 |     // of CSS changes), or refresh the page (in case of JS changes). When you
 42 |     // make a syntax error, this client will display a syntax error overlay.
 43 |     // Note: instead of the default WebpackDevServer client, we use a custom one
 44 |     // to bring better experience for Create React App users. You can replace
 45 |     // the line below with these two lines if you prefer the stock client:
 46 |     // require.resolve('webpack-dev-server/client') + '?/',
 47 |     // require.resolve('webpack/hot/dev-server'),
 48 |     require.resolve('react-dev-utils/webpackHotDevClient'),
 49 |     // Finally, this is your app's code:
 50 |     paths.appIndexJs,
 51 |     // We include the app code last so that if there is a runtime error during
 52 |     // initialization, it doesn't blow up the WebpackDevServer client, and
 53 |     // changing JS code would still trigger a refresh.
 54 |   ],
 55 |   output: {
 56 |     // Add /* filename */ comments to generated require()s in the output.
 57 |     pathinfo: true,
 58 |     // This does not produce a real file. It's just the virtual path that is
 59 |     // served by WebpackDevServer in development. This is the JS bundle
 60 |     // containing code from all our entry points, and the Webpack runtime.
 61 |     filename: 'static/js/bundle.js',
 62 |     // There are also additional JS chunk files if you use code splitting.
 63 |     chunkFilename: 'static/js/[name].chunk.js',
 64 |     // This is the URL that app is served from. We use "/" in development.
 65 |     publicPath: publicPath,
 66 |     // Point sourcemap entries to original disk location (format as URL on Windows)
 67 |     devtoolModuleFilenameTemplate: info =>
 68 |       path.resolve(info.absoluteResourcePath).replace(/\\/g, '/'),
 69 |   },
 70 |   resolve: {
 71 |     // This allows you to set a fallback for where Webpack should look for modules.
 72 |     // We placed these paths second because we want `node_modules` to "win"
 73 |     // if there are any conflicts. This matches Node resolution mechanism.
 74 |     // https://github.com/facebookincubator/create-react-app/issues/253
 75 |     modules: ['node_modules', paths.appNodeModules].concat(
 76 |       // It is guaranteed to exist because we tweak it in `env.js`
 77 |       process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
 78 |     ),
 79 |     // These are the reasonable defaults supported by the Node ecosystem.
 80 |     // We also include JSX as a common component filename extension to support
 81 |     // some tools, although we do not recommend using it, see:
 82 |     // https://github.com/facebookincubator/create-react-app/issues/290
 83 |     // `web` extension prefixes have been added for better support
 84 |     // for React Native Web.
 85 |     extensions: ['.web.js', '.mjs', '.js', '.json', '.web.jsx', '.jsx'],
 86 |     alias: {
 87 |       
 88 |       // Support React Native Web
 89 |       // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
 90 |       'react-native': 'react-native-web',
 91 |     },
 92 |     plugins: [
 93 |       // Prevents users from importing files from outside of src/ (or node_modules/).
 94 |       // This often causes confusion because we only process files within src/ with babel.
 95 |       // To fix this, we prevent you from importing files out of src/ -- if you'd like to,
 96 |       // please link the files into your node_modules/ and let module-resolution kick in.
 97 |       // Make sure your source files are compiled, as they will not be processed in any way.
 98 |       new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]),
 99 |     ],
100 |   },
101 |   module: {
102 |     strictExportPresence: true,
103 |     rules: [
104 |       // TODO: Disable require.ensure as it's not a standard language feature.
105 |       // We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176.
106 |       // { parser: { requireEnsure: false } },
107 | 
108 |       // First, run the linter.
109 |       // It's important to do this before Babel processes the JS.
110 |       {
111 |         test: /\.(js|jsx|mjs)$/,
112 |         enforce: 'pre',
113 |         use: [
114 |           {
115 |             options: {
116 |               formatter: eslintFormatter,
117 |               eslintPath: require.resolve('eslint'),
118 |               
119 |             },
120 |             loader: require.resolve('eslint-loader'),
121 |           },
122 |         ],
123 |         include: paths.appSrc,
124 |       },
125 |       {
126 |         // "oneOf" will traverse all following loaders until one will
127 |         // match the requirements. When no loader matches it will fall
128 |         // back to the "file" loader at the end of the loader list.
129 |         oneOf: [
130 |           // "url" loader works like "file" loader except that it embeds assets
131 |           // smaller than specified limit in bytes as data URLs to avoid requests.
132 |           // A missing `test` is equivalent to a match.
133 |           {
134 |             test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
135 |             loader: require.resolve('url-loader'),
136 |             options: {
137 |               limit: 10000,
138 |               name: 'static/media/[name].[hash:8].[ext]',
139 |             },
140 |           },
141 |           // Process JS with Babel.
142 |           {
143 |             test: /\.(js|jsx|mjs)$/,
144 |             include: paths.appSrc,
145 |             loader: require.resolve('babel-loader'),
146 |             options: {
147 |               
148 |               // This is a feature of `babel-loader` for webpack (not Babel itself).
149 |               // It enables caching results in ./node_modules/.cache/babel-loader/
150 |               // directory for faster rebuilds.
151 |               cacheDirectory: true,
152 |             },
153 |           },
154 |           // "postcss" loader applies autoprefixer to our CSS.
155 |           // "css" loader resolves paths in CSS and adds assets as dependencies.
156 |           // "style" loader turns CSS into JS modules that inject <style> tags.
157 |           // In production, we use a plugin to extract that CSS to a file, but
158 |           // in development "style" loader enables hot editing of CSS.
159 |           {
160 |             test: /\.css$/,
161 |             use: [
162 |               require.resolve('style-loader'),
163 |               {
164 |                 loader: require.resolve('css-loader'),
165 |                 options: {
166 |                   importLoaders: 1,
167 |                 },
168 |               },
169 |               {
170 |                 loader: require.resolve('postcss-loader'),
171 |                 options: {
172 |                   // Necessary for external CSS imports to work
173 |                   // https://github.com/facebookincubator/create-react-app/issues/2677
174 |                   ident: 'postcss',
175 |                   plugins: () => [
176 |                     require('postcss-flexbugs-fixes'),
177 |                     autoprefixer({
178 |                       browsers: [
179 |                         '>1%',
180 |                         'last 4 versions',
181 |                         'Firefox ESR',
182 |                         'not ie < 9', // React doesn't support IE8 anyway
183 |                       ],
184 |                       flexbox: 'no-2009',
185 |                     }),
186 |                   ],
187 |                 },
188 |               },
189 |             ],
190 |           },
191 |           // "file" loader makes sure those assets get served by WebpackDevServer.
192 |           // When you `import` an asset, you get its (virtual) filename.
193 |           // In production, they would get copied to the `build` folder.
194 |           // This loader doesn't use a "test" so it will catch all modules
195 |           // that fall through the other loaders.
196 |           {
197 |             // Exclude `js` files to keep "css" loader working as it injects
198 |             // its runtime that would otherwise processed through "file" loader.
199 |             // Also exclude `html` and `json` extensions so they get processed
200 |             // by webpacks internal loaders.
201 |             exclude: [/\.(js|jsx|mjs)$/, /\.html$/, /\.json$/],
202 |             loader: require.resolve('file-loader'),
203 |             options: {
204 |               name: 'static/media/[name].[hash:8].[ext]',
205 |             },
206 |           },
207 |         ],
208 |       },
209 |       // ** STOP ** Are you adding a new loader?
210 |       // Make sure to add the new loader(s) before the "file" loader.
211 |     ],
212 |   },
213 |   plugins: [
214 |     // Makes some environment variables available in index.html.
215 |     // The public URL is available as %PUBLIC_URL% in index.html, e.g.:
216 |     // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
217 |     // In development, this will be an empty string.
218 |     new InterpolateHtmlPlugin(env.raw),
219 |     // Generates an `index.html` file with the <script> injected.
220 |     new HtmlWebpackPlugin({
221 |       inject: true,
222 |       template: paths.appHtml,
223 |     }),
224 |     // Add module names to factory functions so they appear in browser profiler.
225 |     new webpack.NamedModulesPlugin(),
226 |     // Makes some environment variables available to the JS code, for example:
227 |     // if (process.env.NODE_ENV === 'development') { ... }. See `./env.js`.
228 |     new webpack.DefinePlugin(env.stringified),
229 |     // This is necessary to emit hot updates (currently CSS only):
230 |     new webpack.HotModuleReplacementPlugin(),
231 |     // Watcher doesn't work well if you mistype casing in a path so we use
232 |     // a plugin that prints an error when you attempt to do this.
233 |     // See https://github.com/facebookincubator/create-react-app/issues/240
234 |     new CaseSensitivePathsPlugin(),
235 |     // If you require a missing module and then `npm install` it, you still have
236 |     // to restart the development server for Webpack to discover it. This plugin
237 |     // makes the discovery automatic so you don't have to restart.
238 |     // See https://github.com/facebookincubator/create-react-app/issues/186
239 |     new WatchMissingNodeModulesPlugin(paths.appNodeModules),
240 |     // Moment.js is an extremely popular library that bundles large locale files
241 |     // by default due to how Webpack interprets its code. This is a practical
242 |     // solution that requires the user to opt into importing specific locales.
243 |     // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
244 |     // You can remove this if you don't use Moment.js:
245 |     new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
246 |   ],
247 |   // Some libraries import Node modules but don't use them in the browser.
248 |   // Tell Webpack to provide empty mocks for them so importing them works.
249 |   node: {
250 |     dgram: 'empty',
251 |     fs: 'empty',
252 |     net: 'empty',
253 |     tls: 'empty',
254 |     child_process: 'empty',
255 |   },
256 |   // Turn off performance hints during development because we don't do any
257 |   // splitting or minification in interest of speed. These warnings become
258 |   // cumbersome.
259 |   performance: {
260 |     hints: false,
261 |   },
262 | };
263 | 


--------------------------------------------------------------------------------
/config/webpack.config.prod.js:
--------------------------------------------------------------------------------
  1 | 'use strict';
  2 | 
  3 | const autoprefixer = require('autoprefixer');
  4 | const path = require('path');
  5 | const webpack = require('webpack');
  6 | const HtmlWebpackPlugin = require('html-webpack-plugin');
  7 | const ExtractTextPlugin = require('extract-text-webpack-plugin');
  8 | const ManifestPlugin = require('webpack-manifest-plugin');
  9 | const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
 10 | const SWPrecacheWebpackPlugin = require('sw-precache-webpack-plugin');
 11 | const eslintFormatter = require('react-dev-utils/eslintFormatter');
 12 | const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
 13 | const paths = require('./paths');
 14 | const getClientEnvironment = require('./env');
 15 | 
 16 | // Webpack uses `publicPath` to determine where the app is being served from.
 17 | // It requires a trailing slash, or the file assets will get an incorrect path.
 18 | const publicPath = paths.servedPath;
 19 | // Some apps do not use client-side routing with pushState.
 20 | // For these, "homepage" can be set to "." to enable relative asset paths.
 21 | const shouldUseRelativeAssetPaths = publicPath === './';
 22 | // Source maps are resource heavy and can cause out of memory issue for large source files.
 23 | const shouldUseSourceMap = process.env.GENERATE_SOURCEMAP !== 'false';
 24 | // `publicUrl` is just like `publicPath`, but we will provide it to our app
 25 | // as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
 26 | // Omit trailing slash as %PUBLIC_URL%/xyz looks better than %PUBLIC_URL%xyz.
 27 | const publicUrl = publicPath.slice(0, -1);
 28 | // Get environment variables to inject into our app.
 29 | const env = getClientEnvironment(publicUrl);
 30 | 
 31 | // Assert this just to be safe.
 32 | // Development builds of React are slow and not intended for production.
 33 | if (env.stringified['process.env'].NODE_ENV !== '"production"') {
 34 |   throw new Error('Production builds must have NODE_ENV=production.');
 35 | }
 36 | 
 37 | // Note: defined here because it will be used more than once.
 38 | const cssFilename = 'static/css/[name].[contenthash:8].css';
 39 | 
 40 | // ExtractTextPlugin expects the build output to be flat.
 41 | // (See https://github.com/webpack-contrib/extract-text-webpack-plugin/issues/27)
 42 | // However, our output is structured with css, js and media folders.
 43 | // To have this structure working with relative paths, we have to use custom options.
 44 | const extractTextPluginOptions = shouldUseRelativeAssetPaths
 45 |   ? // Making sure that the publicPath goes back to to build folder.
 46 |     { publicPath: Array(cssFilename.split('/').length).join('../') }
 47 |   : {};
 48 | 
 49 | // This is the production configuration.
 50 | // It compiles slowly and is focused on producing a fast and minimal bundle.
 51 | // The development configuration is different and lives in a separate file.
 52 | module.exports = {
 53 |   // Don't attempt to continue if there are any errors.
 54 |   bail: true,
 55 |   // We generate sourcemaps in production. This is slow but gives good results.
 56 |   // You can exclude the *.map files from the build during deployment.
 57 |   devtool: shouldUseSourceMap ? 'source-map' : false,
 58 |   // In production, we only want to load the polyfills and the app code.
 59 |   entry: [require.resolve('./polyfills'), paths.appIndexJs],
 60 |   output: {
 61 |     // The build folder.
 62 |     path: paths.appBuild,
 63 |     // Generated JS file names (with nested folders).
 64 |     // There will be one main bundle, and one file per asynchronous chunk.
 65 |     // We don't currently advertise code splitting but Webpack supports it.
 66 |     filename: 'static/js/[name].[chunkhash:8].js',
 67 |     chunkFilename: 'static/js/[name].[chunkhash:8].chunk.js',
 68 |     // We inferred the "public path" (such as / or /my-project) from homepage.
 69 |     publicPath: publicPath,
 70 |     // Point sourcemap entries to original disk location (format as URL on Windows)
 71 |     devtoolModuleFilenameTemplate: info =>
 72 |       path
 73 |         .relative(paths.appSrc, info.absoluteResourcePath)
 74 |         .replace(/\\/g, '/'),
 75 |   },
 76 |   resolve: {
 77 |     // This allows you to set a fallback for where Webpack should look for modules.
 78 |     // We placed these paths second because we want `node_modules` to "win"
 79 |     // if there are any conflicts. This matches Node resolution mechanism.
 80 |     // https://github.com/facebookincubator/create-react-app/issues/253
 81 |     modules: ['node_modules', paths.appNodeModules].concat(
 82 |       // It is guaranteed to exist because we tweak it in `env.js`
 83 |       process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
 84 |     ),
 85 |     // These are the reasonable defaults supported by the Node ecosystem.
 86 |     // We also include JSX as a common component filename extension to support
 87 |     // some tools, although we do not recommend using it, see:
 88 |     // https://github.com/facebookincubator/create-react-app/issues/290
 89 |     // `web` extension prefixes have been added for better support
 90 |     // for React Native Web.
 91 |     extensions: ['.web.js', '.mjs', '.js', '.json', '.web.jsx', '.jsx'],
 92 |     alias: {
 93 |       
 94 |       // Support React Native Web
 95 |       // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
 96 |       'react-native': 'react-native-web',
 97 |     },
 98 |     plugins: [
 99 |       // Prevents users from importing files from outside of src/ (or node_modules/).
100 |       // This often causes confusion because we only process files within src/ with babel.
101 |       // To fix this, we prevent you from importing files out of src/ -- if you'd like to,
102 |       // please link the files into your node_modules/ and let module-resolution kick in.
103 |       // Make sure your source files are compiled, as they will not be processed in any way.
104 |       new ModuleScopePlugin(paths.appSrc, [paths.appPackageJson]),
105 |     ],
106 |   },
107 |   module: {
108 |     strictExportPresence: true,
109 |     rules: [
110 |       // TODO: Disable require.ensure as it's not a standard language feature.
111 |       // We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176.
112 |       // { parser: { requireEnsure: false } },
113 | 
114 |       // First, run the linter.
115 |       // It's important to do this before Babel processes the JS.
116 |       {
117 |         test: /\.(js|jsx|mjs)$/,
118 |         enforce: 'pre',
119 |         use: [
120 |           {
121 |             options: {
122 |               formatter: eslintFormatter,
123 |               eslintPath: require.resolve('eslint'),
124 |               
125 |             },
126 |             loader: require.resolve('eslint-loader'),
127 |           },
128 |         ],
129 |         include: paths.appSrc,
130 |       },
131 |       {
132 |         // "oneOf" will traverse all following loaders until one will
133 |         // match the requirements. When no loader matches it will fall
134 |         // back to the "file" loader at the end of the loader list.
135 |         oneOf: [
136 |           // "url" loader works just like "file" loader but it also embeds
137 |           // assets smaller than specified size as data URLs to avoid requests.
138 |           {
139 |             test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
140 |             loader: require.resolve('url-loader'),
141 |             options: {
142 |               limit: 10000,
143 |               name: 'static/media/[name].[hash:8].[ext]',
144 |             },
145 |           },
146 |           // Process JS with Babel.
147 |           {
148 |             test: /\.(js|jsx|mjs)$/,
149 |             include: paths.appSrc,
150 |             loader: require.resolve('babel-loader'),
151 |             options: {
152 |               
153 |               compact: true,
154 |             },
155 |           },
156 |           // The notation here is somewhat confusing.
157 |           // "postcss" loader applies autoprefixer to our CSS.
158 |           // "css" loader resolves paths in CSS and adds assets as dependencies.
159 |           // "style" loader normally turns CSS into JS modules injecting <style>,
160 |           // but unlike in development configuration, we do something different.
161 |           // `ExtractTextPlugin` first applies the "postcss" and "css" loaders
162 |           // (second argument), then grabs the result CSS and puts it into a
163 |           // separate file in our build process. This way we actually ship
164 |           // a single CSS file in production instead of JS code injecting <style>
165 |           // tags. If you use code splitting, however, any async bundles will still
166 |           // use the "style" loader inside the async code so CSS from them won't be
167 |           // in the main CSS file.
168 |           {
169 |             test: /\.css$/,
170 |             loader: ExtractTextPlugin.extract(
171 |               Object.assign(
172 |                 {
173 |                   fallback: {
174 |                     loader: require.resolve('style-loader'),
175 |                     options: {
176 |                       hmr: false,
177 |                     },
178 |                   },
179 |                   use: [
180 |                     {
181 |                       loader: require.resolve('css-loader'),
182 |                       options: {
183 |                         importLoaders: 1,
184 |                         minimize: true,
185 |                         sourceMap: shouldUseSourceMap,
186 |                       },
187 |                     },
188 |                     {
189 |                       loader: require.resolve('postcss-loader'),
190 |                       options: {
191 |                         // Necessary for external CSS imports to work
192 |                         // https://github.com/facebookincubator/create-react-app/issues/2677
193 |                         ident: 'postcss',
194 |                         plugins: () => [
195 |                           require('postcss-flexbugs-fixes'),
196 |                           autoprefixer({
197 |                             browsers: [
198 |                               '>1%',
199 |                               'last 4 versions',
200 |                               'Firefox ESR',
201 |                               'not ie < 9', // React doesn't support IE8 anyway
202 |                             ],
203 |                             flexbox: 'no-2009',
204 |                           }),
205 |                         ],
206 |                       },
207 |                     },
208 |                   ],
209 |                 },
210 |                 extractTextPluginOptions
211 |               )
212 |             ),
213 |             // Note: this won't work without `new ExtractTextPlugin()` in `plugins`.
214 |           },
215 |           // "file" loader makes sure assets end up in the `build` folder.
216 |           // When you `import` an asset, you get its filename.
217 |           // This loader doesn't use a "test" so it will catch all modules
218 |           // that fall through the other loaders.
219 |           {
220 |             loader: require.resolve('file-loader'),
221 |             // Exclude `js` files to keep "css" loader working as it injects
222 |             // it's runtime that would otherwise processed through "file" loader.
223 |             // Also exclude `html` and `json` extensions so they get processed
224 |             // by webpacks internal loaders.
225 |             exclude: [/\.(js|jsx|mjs)$/, /\.html$/, /\.json$/],
226 |             options: {
227 |               name: 'static/media/[name].[hash:8].[ext]',
228 |             },
229 |           },
230 |           // ** STOP ** Are you adding a new loader?
231 |           // Make sure to add the new loader(s) before the "file" loader.
232 |         ],
233 |       },
234 |     ],
235 |   },
236 |   plugins: [
237 |     // Makes some environment variables available in index.html.
238 |     // The public URL is available as %PUBLIC_URL% in index.html, e.g.:
239 |     // <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
240 |     // In production, it will be an empty string unless you specify "homepage"
241 |     // in `package.json`, in which case it will be the pathname of that URL.
242 |     new InterpolateHtmlPlugin(env.raw),
243 |     // Generates an `index.html` file with the <script> injected.
244 |     new HtmlWebpackPlugin({
245 |       inject: true,
246 |       template: paths.appHtml,
247 |       minify: {
248 |         removeComments: true,
249 |         collapseWhitespace: true,
250 |         removeRedundantAttributes: true,
251 |         useShortDoctype: true,
252 |         removeEmptyAttributes: true,
253 |         removeStyleLinkTypeAttributes: true,
254 |         keepClosingSlash: true,
255 |         minifyJS: true,
256 |         minifyCSS: true,
257 |         minifyURLs: true,
258 |       },
259 |     }),
260 |     // Makes some environment variables available to the JS code, for example:
261 |     // if (process.env.NODE_ENV === 'production') { ... }. See `./env.js`.
262 |     // It is absolutely essential that NODE_ENV was set to production here.
263 |     // Otherwise React will be compiled in the very slow development mode.
264 |     new webpack.DefinePlugin(env.stringified),
265 |     // Minify the code.
266 |     new webpack.optimize.UglifyJsPlugin({
267 |       compress: {
268 |         warnings: false,
269 |         // Disabled because of an issue with Uglify breaking seemingly valid code:
270 |         // https://github.com/facebookincubator/create-react-app/issues/2376
271 |         // Pending further investigation:
272 |         // https://github.com/mishoo/UglifyJS2/issues/2011
273 |         comparisons: false,
274 |       },
275 |       mangle: {
276 |         safari10: true,
277 |       },
278 |       output: {
279 |         comments: false,
280 |         // Turned on because emoji and regex is not minified properly using default
281 |         // https://github.com/facebookincubator/create-react-app/issues/2488
282 |         ascii_only: true,
283 |       },
284 |       sourceMap: shouldUseSourceMap,
285 |     }),
286 |     // Note: this won't work without ExtractTextPlugin.extract(..) in `loaders`.
287 |     new ExtractTextPlugin({
288 |       filename: cssFilename,
289 |     }),
290 |     // Generate a manifest file which contains a mapping of all asset filenames
291 |     // to their corresponding output file so that tools can pick it up without
292 |     // having to parse `index.html`.
293 |     new ManifestPlugin({
294 |       fileName: 'asset-manifest.json',
295 |     }),
296 |     // Generate a service worker script that will precache, and keep up to date,
297 |     // the HTML & assets that are part of the Webpack build.
298 |     new SWPrecacheWebpackPlugin({
299 |       // By default, a cache-busting query parameter is appended to requests
300 |       // used to populate the caches, to ensure the responses are fresh.
301 |       // If a URL is already hashed by Webpack, then there is no concern
302 |       // about it being stale, and the cache-busting can be skipped.
303 |       dontCacheBustUrlsMatching: /\.\w{8}\./,
304 |       filename: 'service-worker.js',
305 |       logger(message) {
306 |         if (message.indexOf('Total precache size is') === 0) {
307 |           // This message occurs for every build and is a bit too noisy.
308 |           return;
309 |         }
310 |         if (message.indexOf('Skipping static resource') === 0) {
311 |           // This message obscures real errors so we ignore it.
312 |           // https://github.com/facebookincubator/create-react-app/issues/2612
313 |           return;
314 |         }
315 |         console.log(message);
316 |       },
317 |       minify: true,
318 |       // For unknown URLs, fallback to the index page
319 |       navigateFallback: publicUrl + '/index.html',
320 |       // Ignores URLs starting from /__ (useful for Firebase):
321 |       // https://github.com/facebookincubator/create-react-app/issues/2237#issuecomment-302693219
322 |       navigateFallbackWhitelist: [/^(?!\/__).*/],
323 |       // Don't precache sourcemaps (they're large) and build asset manifest:
324 |       staticFileGlobsIgnorePatterns: [/\.map$/, /asset-manifest\.json$/],
325 |     }),
326 |     // Moment.js is an extremely popular library that bundles large locale files
327 |     // by default due to how Webpack interprets its code. This is a practical
328 |     // solution that requires the user to opt into importing specific locales.
329 |     // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
330 |     // You can remove this if you don't use Moment.js:
331 |     new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
332 |   ],
333 |   // Some libraries import Node modules but don't use them in the browser.
334 |   // Tell Webpack to provide empty mocks for them so importing them works.
335 |   node: {
336 |     dgram: 'empty',
337 |     fs: 'empty',
338 |     net: 'empty',
339 |     tls: 'empty',
340 |     child_process: 'empty',
341 |   },
342 | };
343 | 


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