webdriverjs tests locally and use sauce labs to run remotely

test_example.js

const {Builder, By, Key, until, remote} = require('selenium-webdriver');

const sauceUsername = process.env.SAUCELABS_USER,
      sauceApiToken = process.env.SAUCELABS_APITOKEN;

(async function example() {
  let driver = await new Builder()
    .forBrowser('firefox')
    .build();

  try {
    await driver.get('http://www.google.com/ncr');
    await driver.findElement(By.name('q')).sendKeys('webdriver', Key.RETURN);
    await driver.wait(until.titleIs('webdriver - Google Search'), 1000);
  } finally {
    await driver.quit();
  }
})();

(async function remoteTestExample () {
  let driver = await new Builder()
      .withCapabilities({
        'browserName': 'chrome',
        // 'platform': 'Windows XP',
        // 'version': '43.0',
        'username': sauceUsername,
        'accessKey': sauceApiToken
      })
      .usingServer("http://" + sauceUsername + ":" + sauceApiToken + "@ondemand.saucelabs.com:80/wd/hub")
      .build();
  
  try {
    await driver.get('http://www.google.com/ncr');
    await driver.findElement(By.name('q')).sendKeys('webdriver', Key.RETURN);
    await driver.wait(until.titleIs('webdriver - Google Search'), 1000);
    await driver.sleep(3000);
  } finally {
    await driver.quit();
  }
})();