Behat 3, Mink, Guzzle, PageObject, Saucelabs
CucumberJS/Protractor UI/API test framework, with parallel testing
Webdriverio, Cucumber2, Chai
General website smoketest which will follow links and stream any page errors to a pipe of your choice.
UI testing in Node.js and WebDriver
VisualReview, a human-friendly tool for testing and reviewing visual regressions.
The code for this website (Gatsby framework)