We understand how the creative work of programming can proceed at a comfortable tempo. We're less sure what strategies work when that tempo is interrupted. If we want to know how people successfully work through these pauses we should just ask.
"Test && Commit || Revert", also known as TCR, is a programming workflow similar to TDD. #Smalltalks2022. post 
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Let's go through the first test case in WikiSpec.elm commit step by step: