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Jeffrey Fredrick

Interesting data!

One key bit of information that is missing — perhaps something for a later poll — is "how long does the build stay broken?"

I also wonder about selection bias in your sample. You seem to have tapped into a pretty advanced set of users based on the relatively high coverage and relatively short build times. But perhaps lower coverage and longer build times are correlated? Or maybe only people with fast builds stick with unit testing?

Either seems plausible to me.

Ben Rady

I'm sure there's selection bias in the sample. I don't think these numbers are representative of the industry as a whole.

Great suggestion on the "how long does the build stay broken". I wonder if there would be an easy way for people to pull this data from their CI servers and share it an easily consumable way?

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