gurubot2/test/browser.js

import '@babel/polyfill';

import path from 'path';
import Enzyme from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';
Enzyme.configure({ adapter: new Adapter() });

import { JSDOM } from 'jsdom';

import { EventEmitter } from 'events';

import register from 'ignore-styles';

// eslint-disable-next-line no-undefined
register(['.scss', '.png', '.wav', '.mp3', '.mp4', '.svg'], (module, filename) => {
    if (['.png', '.wav', '.mp3', '.mp4', '.svg'].some(extension => filename.endsWith(extension))) {
        module.exports = path.basename(filename);
    }
});

const exposedProperties = ['window', 'navigator', 'document'];

const blacklistProperties = ['localStorage', 'sessionStorage'];

global.window = (new JSDOM('')).window;
global.document = window.document;

class URL {
    static createObjectURL() {
        return 'foo';
    }
}

global.URL = URL;

Object.keys(window).forEach(property => {
    if (!blacklistProperties.includes(property) && typeof global[property] === 'undefined') {
        exposedProperties.push(property);
        global[property] = window[property];
    }
});

const geolocation = {
    getCurrentPosition: () => null
};

global.navigator = {
    userAgent: 'node.js',
    geolocation
};

class MockImage extends EventEmitter {
    constructor() {
        super();

        this.src = null;
        this.onload = () => null;

        setTimeout(() => {
            this.onload();
        }, 50);
    }
}

global.Image = MockImage;

window.HTMLMediaElement.prototype.load = () => null;
window.HTMLMediaElement.prototype.play = () => null;
window.HTMLMediaElement.prototype.pause = () => null;
window.HTMLMediaElement.prototype.addTextTrack = () => null;

window.requestAnimationFrame = () => null;
window.cancelAnimationFrame = () => null;

class MockFormData {
    constructor() {
        this.data = {};
    }
    set(key, value) {
        this.data[key] = value;
    }
}

global.FormData = MockFormData;

global.documentRef = document; // eslint-disable-line no-undef