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TDD Without the Overkill: Why Lightweight TDD Ships Faster

TDD Without the Overkill: Why Lightweight TDD Ships Faster

TDD looks slow on paper. The real ledger is one hour writing tests against six hours debugging next week. Here is why lightweight TDD wins.
Refactor Without Breaking Tests: The 3-Line Discipline in Ruby

Refactor Without Breaking Tests: The 3-Line Discipline in Ruby

The refactor step breaks more tests than green ever does. Cap each refactor commit at three lines of Ruby and the suite stays green every time.