Rails has very nice way to generate test data with factoryGirl/Machinist +Shoulda . from factorygirl site "Factory Girl provides a framework and DSL for defining and using factories to create data records for ruby test suites. The goal is to be less error-prone, more explicit, and all-around easier to work with than Rails’ fixtures." Does there exist something like FactoryGirl/machinist in .Net/c# for test data ?