gistfile1.rb

module MyApp
  class TestCase < Test::Unit::TestCase
    def self.transaction(&block)
      Sequel::Model.db.transaction &block
    end

    def transaction(&block)
      self.class.transaction(&block)
    end

    def self.it(*args, &block)
      test(*args) do
        transaction do
          instance_eval(&block)
          raise Sequel::Error::Rollback
        end
      end
    end

    def self.cleanup(*models)
      before :all do
        models.each { |m| m.delete_all }
      end
    end
  end
end