What in particular are you disagreeing with? You seem to be implying that I'm saying not to write tests or that testing isn't valuable but that's not what I sa

What in particular are you disagreeing with? You seem to be implying that I'm saying not to write tests or that testing isn't valuable but that's not what I said. As I said: "I think tests are highly valuable. I don’t know how I could write high quality code without writing tests." Every Clojure dev I've ever worked with wrote tests and relied on them. My point is that there are costs to consider. I observe that the Clojure community is interested in trying a wide variety of testing approaches that may mitigate some costs of testing, perhaps more so than other communities. I have also worked on a system with a large Clojure test suite (at least 30kLOC), primarily example-based. We found that there was substantial cost (even with many custom-built tools) to maintaining those tests. I've had the same experience maintaing large Java test suites. Recently, I've been doing more with generative testing - I think generative and contracts may give you a better return on your effort than example based testing. But that's a hypothesis I look forward to investigating.