hooks for DatabaseCleaner in Rails

gistfile1.rb

class ActiveSupport::TestCase
  # ...

  class << self
    def startup
      DatabaseCleaner.clean
    end

    def shutdown
      DatabaseCleaner.clean
    end

    def suite
      mysuite = super
      def mysuite.run(*args)
        ActiveSupport::TestCase.startup
        super
        ActiveSupport::TestCase.shutdown
      end
      mysuite
    end
  end

  # ...
end