github/scientist

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Scientist! A Ruby library for carefully refactoring critical paths. How do I science? Let's pretend you're changing the way you handle permissions in a large web app. Tests can help guide your refactoring, but you really want to compare the current and refactored behaviors under load. require "scientist" class MyWidget def allows?(user) experiment = Scientist::Default.new "widget-permissions" experiment.use { model.check_user?(user).valid? } # old way experiment.try { user.can?(:read,...