Programmer by day, tester by night
summary
A plugin for popular IDEs collects 150 person-years of activity from 2442 developers and shows self-reports of ~50/50 test versus production time but measured behavior of ~25% time on test code, revealing 2442 developers, 150 person-years, 25% test-code time, and that 574 claim TDD yet only 47 real TDDers actually follow the red‑green‑refactor cycle. The conclusion urges attention to chronoception and using software analytics to measure real effort.
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