this post was submitted on 30 Aug 2023
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How much flakiness do you tolerate in end to end tests? (programming.dev)
submitted 1 year ago* (last edited 1 year ago) by kersplort@programming.dev to c/experienced_devs@programming.dev
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End to end and smoke tests give a really valuable angle on what the app is doing and can warn you about failures before they happen. However, because they're working with a live app and a live database over a live network, they can introduce a lot of flakiness. Beyond just changes to the app, different data in the environment or other issues can cause a smoke test failure.

How do you handle the inherent flakiness of testing against a live app?

When do you run smokes? On every phoenix branch? Pre-prod? Prod only?

Who fixes the issues that the smokes find?

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[–] psukys@feddit.de 1 points 1 year ago

It depends, but generally as little as possible - nobody has time to inspect flakiness cause on a frequent basis when mindset is to move fast. Within team we identified components and degree of control we have over them to control flakiness