h2. What's Capybara bq. Capybara is a webrat alternative which aims to support all browser simulators. As you know, webrat can not run javascript onWhat’s Capybara Capybara is a webrat alternative which aims to support all browser simulators. As you know, webrat can not run javascript on the webpage. In order to test javascript and AJAX based website we need install Selenium-client and learn extra