Run multiple browsers in parallel using WebDriverJS flow.

webdriverjs_parallel_drivers.js

'use strict';

/**
 * Module dependencies.
 */
const webdriver = require('selenium-webdriver');

/**
 * Open each driver in parallel.
 *
 * https://github.com/SeleniumHQ/selenium/blob/master/javascript/node/selenium-webdriver/example/parallel_flows.js
 */
['chrome', 'firefox', 'safari'].forEach((browserName, index) => {
    const flow = new webdriver.promise.ControlFlow();
    flow.on('uncaughtException', (error) => {
        console.error(index, 'uncaughtException in flow', error);
    });

    const builder = new webdriver.Builder();
    builder.forBrowser(browserName);
    // magic happens here...
    builder.setControlFlow(flow);
    const driver = builder.build();

    // position and resize window so it's easy to see them running together
    driver.manage().window().setSize(600, 400);
    driver.manage().window().setPosition(300 * index, 400 * index);

    driver.sleep(5000);
    driver.quit();
});

They deprecated the whole createflow functionality :(