Powerful Testing Tool: Use Selenium Grid to Ensure Cross-Browser Compatibility!

File: ~/test-selenium/test.js
const {Builder, By, Capabilities, Key, until} = require('selenium-webdriver');
let firefox = require('selenium-webdriver/firefox');

const VERSIONS = ['58.0.2','59.0'];

function buildDrivers(versions) {
let drivers = [];
for (let version of versions) {
driver = new Builder().forBrowser('firefox')
.withCapabilities(Capabilities.firefox().setBrowserVersion(version))
.usingServer('http://192.0.2.0:4444/wd/hub')
.setFirefoxOptions(
new firefox.Options().headless())
.build();
drivers.push(driver);
}
console.log('built drivers for ' + versions);
return drivers;
}

async function example(driver) {
try {
await driver.get('http://www.linode.com/docs');
await driver.findElement(By.name('q')).sendKeys('nginx', Key.RETURN);
let el = driver.findElement(By.linkText('How to Configure nginx'));
await driver.wait(until.elementIsVisible(el), 1000);
await el.click();
title = await driver.getTitle();
} finally {
await driver.quit();
}
};

async function main() {
const drivers = await buildDrivers(VERSIONS);

for (let driver of drivers) {
example(driver);
};
}

main();

node test.js