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Testing in Production – dangerous, scary or better?

Feb 25th

11:00 – 11:45

Stage A


45 minutes


We all run tests on safe, separate test environments. But what if let them loose on production systems? Is that dangerous, or is it worth the risk? This can seem daunting, but there are huge benefits. I’ll discuss some of the downsides to testing in isolated, unrepresentative test environments, before talking about my experiences of using Selenium to test in production as much as possible. I’ll demonstrate the benefits, like how we can turn automated tests into monitoring and early alerting systems for our production environments, and the steps we need to take to make sure our production tests don’t affect our users.

Jon Hare-Winton

Jon Hare-Winton

Senior QA Automation Engineer at The Guardian, UK

Senior Automation Engineer at the Guardian. He worked originally as a manual tester, before moving into Automation and more general Development across the media, marketing and finance industries. Regular contributor to the Guardian developer blog. Has a passion for pushing the conceptions of what a Tester can be, and what Testing and Quality teams can deliver to wider software development, beyond conventional test practices.