Upgrading from Selenium to Cuprite

When I joined my current company, the system tests for our Rails app used Selenium as the Capybara driver. I didn’t have good experiences with Selenium in the past, mostly it was tedious to have to keep chromedriver up-to-date with the auto-updating Chrome. In this project, I was frequently hitting maximum number of open file descriptors on my OS when running system tests, probably in combination with Spring. We’re using the Webdrivers gem, and we also needed to ignore its download URLs in VCR and WebMock. But my primary issue was that the system tests just seemed kind of slow in general.